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Document overview
- Manufacturer or author: Infineon Technologies AG
- PDF pages: 40
Technical content
Features
- Qi v1.3.x compliant transmitter (MP-A11 coil)
- Integrated USB-PD controller - Supports latest USB-PD 3.0 version - Programmable power supply (PPS) mode - Support for USB PD legacy charging protocols like QC 2.0/ 3.0 and AFC [1]
- Integrated buck converter controller for VBRIDGE (VBRG)
- Integrated gate drivers for buck converter and inverter
- Integrated Q factor detection
- Integrated FSK modulator
- Wide input voltage range: 4.5V-24V
- Communication ports: I 2C, UART
- Protection - Overcurrent protection (OCP), overvoltage protection (OVP) - Supports over-temperature protection through integrated ADC circuit and internal temperature sensor
- Temperature range - -40°C to +105°C extended industrial temperature range
- Package EPAD Note 1. Customers must acquire the licensing for QC2.0/3.0 and AFC. For any other legacy charging protocol support, contact your local Infineon sales representative. VBRG VDDD VCCD VBRG Tx Coil Cp CBRG HG1_1 LG1_1 HG2_1 LG2_1 ASK Demod filters CVCCD CVDDD LG1_0 CVIN USB Type‐C Receptacle WLC1115-68LQXQ/T CZVS1 CZVS2 DEMOD DEMOD HG1_0 SW1_0 DP DM CC1 CC2 CSPO CSNO SW1_1 SW2_1 LED(s) VIN RSNS VBB_1 ASK_DEMOD GPIOs VBUS
Datasheet 2 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Logic block diagram Logic block diagram arm CORTEX-M0
48 MHZ
(128 KB) SROM (32 KB) System Resource Advanced High-Performance Bus (AHB) 4 x TCPWM SCB X 4 (2 x I2C, SPI, UART) PWM High Side & Low Side Gate drivers Current Sense Amplifier PWM High Side & Low Side Gate Drivers FOD Q Factor, Resonance Freq. & Power Loss ASK Demodulator Voltage & Current Current Sense Amplifier CC GPIOs
2 X OVT
Baseband MAC & PHY Hi-Voltage LDO VBRG OVP, SCP Protection 1 x 8-bit SAR ADC NFET Gate Driver w/ Slew Rate Control USB PD Legacy Charging Protocols - QC 2.0 / 3.0 & AFC PPDE/Samsung FC, Apple 7.5W WLC1115: Wireless Transmitter Controller with Integrated PD MCU Subsystem Integrated Digital Blocks Buck Controller Wireless Controller with Integrated PD Qi v1.3.x Stack ASK Decoder IO Subsystem SRAM (16 KB) Note 2. Customers need to acquire their own licensing for Samsung FC.
Datasheet 3 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Table of contents Table of contents
Datasheet 4 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Table of contents
Datasheet 5 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Application diagram for 15W transmitter solution with MP-A11 Tx coil
1 Application diagram for 15W transmitter solution with MP-A11
Figure 1 illustrates a typical application of WLC1115 for 15W, Qi v1.3.x compliant transmitter for fixed frequency and voltage control based MP-A11 Qi transmitter coil. The input power to the system is through Type-C PD sink, powering the buck converter. The buck converter powers the full bridge inverter which in turn drives the transmitter coil. The WLC1115 controls the inverter bridge voltage (VBRG) using the buck converter to regulate the power flow to the transmitter coil powering the receiver. A dual Opamp is used for converting the amplitude shift key (ASK) modulated power signal into binary signal. WLC1115 uses a digital logic for decoding the binary signals. The OPTIGA ™ Trust Security IC is interfaced over I2C for authentication requirements per Qi v1.3.x. Figure 1 Application diagram for 15W tran smitter solution with MP-A11 Tx coil WLC1115-68LQXQ/T CC1 DP BB_IN CC2 DM VCCD PVDD_0 COMP USB PD, 5-20V 1μF CC2 CC1 VIN 390pF DP DM VBUS_IN ASK_SEL HG1_0 LG1_0 CSPI_0 CSNI_0 BST1_0 SW1_0 LG2_0 BST2_0 SW2_0 HG2_0 VBRG_DIS VBRG PGND_0 CSPO CSNO DNU2 DNU1 GND VBB_0 GND 5 m 10 m 1μF0.1μF GND ASK_OUT 13 121167859 2168 67 USB Type-C Receptacle VDDD GND (EPAD)69 PVDD_1 1μF ASK_DEMOD PGND_1 QCOMP2 32 NFET_CTRL_1 HG2_1 LG2_1 BST2_1 SW2_1 LG1_1 BST1_1 SW1_1 HG1_1 BB_IN VBB_1 ASK_P ASK_N QCOMP1 VDDD SDA_SEC SCL_SEC RES_SEC VDDD Optiga Trust Charge (Qi v1.3.x EPP) I2C_SDA I2C_SCL OPTIGA RESET GPIO12 BB_IN ASK_TST CLK_IN/GPIO13 6059 390pF LED2 TEMP_FB 58NTC LED XRES VDDD VDDD 0.1μF 10μF 1μF0.1μF VDDD VDDD Inverter Bridge, 3-24V NFET_CTRL_1 VBUS_IN VBUS_IN VDDD VBB_1 VBB_1 Qi PTx Coil NFET_CTRL_017 PWM_IN2 PWM_OUT PWM_IN1 Config PC SWD_DAT/HPI_SDA SWD_DAT/GPIO956 SWD_CLK/GPIO1057 VDDD Dual Opamp LED1 26LED NFET_CTRL_1 VDDD Oscillator (optional) VDDD USB-I2C* SWD_CLK/HPI_SCL
31 UART/GPIO7
USB-UART* Debug PC NOTE: 1/ Sink FET is Optional 2/ Optiga Trust Charge is required for Qi v1.3.x EPP 15W only These are External Dongle Board not part of Solution HW
Datasheet 6 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Pin information
2 Pin information
Pin# Pin name Pin function for 15W MP-A11 application firmware Pin description 1S W 1 _ 0 Buck converter switching node (DC-DC bank 1) and input to zero current detector for low side gate driver. Connect this pin to switch node of buck with a short and wide trace. 2L G 1 _ 0 Low side gate driver output for buck converter (DC-DC bank 1). Connect to the buck Low side FET gate. Use a wide trace to minimize inductance of this connection. 3P G N D _ 0 Ground for gate driver (DC-DC). Connect all grounds (GND) and PGND pins (PNGD_0 and PGND_1) together. Connect directly PCB ground plane and Exposed pad (E-PAD). 4P V D D _ 0 Connect to VDDD and to decoupling capacitors (1µF and 0.1µF), as close to the IC as possible. 5L G 2 _ 0 Low side gate driver output for DC-DC bank 2. Float this pin for 15W MP-A11 application.
6 VBB_0
Input rail of inverter bridge, connected to output of the buck converter. Connect this to the buck side terminal of current sense resistor for inverter bridge input current sensing. Use a dedicated (Kelvin) trace for this connection. 7S W 2 _ 0 Switching node (DC-DC bank 2). Connect this pin directly to the E-PAD. 8H G 2 _ 0 High side gate driver output of DC-DC bank 2. Float this pin for 15W MP-A11 application. 9B S T 2 _ 0 Bootstrap power supply for DC-DC bank 2. Connect this pin to VDDD via a Schottky diode. 10 COMP Error amplifier (EA) output for buck controller. Connect the RC compensation network to GND.
11 CSPO
Positive input of current sensing amplifier of inverter bridge input current. Connect to positive terminal of the output current sense resistor (VBB_0).
12 CSNO
Negative input of current sensing amplifier of inverter bridge input current. Connect to negative terminal of the current sense resistor. 13 VBRG Feedback pin for buck output voltage. Connect it to buck output before inverter bridge input current sense resistor.
14 VBRG_DIS
Inverter input power supply voltage. Connect to buck output before inverter bridge input current sense resistor. Used as weak discharge of VBRG.
15 CC1
Type-C connector configuration channel 1. Connect directly to the CC1 pin on the port’s Type-C connector and to a capacitor (recommended value 390pF) to ground.
16 CC2
Type-C connector configuration channel 2. Connect directly to the CC2 pin on the port’s Type-C connector and to a capacitor (recommended value 390pF) to ground. 17 NFET_CTRL_0 NFET gate driver output. Float this pin if it is not used. 18 ASK_OUT ASK voltage/current sensing path. IC output for ASK signal processing. 19 ASK_DEMOD Input for ASK signal decoding. Connect external ASK comparator output to this pin. Short this pin to pin-36 (ASK_SEL). 20 GD_OVR_HB_1 PWM_IN1 Inverter gate driver input signal for inverter bank 1. Short this pin to pin-22. PWM_OUT .
Datasheet 7 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Pin information 21 GD_OVR_HB_2 PWM_IN2 Inverter gate driver input signal for inverter bank 2. Short this pin to pin-22 PWM_OUT .
22 PWM_OUT Inverter PWM signal output used for the inverter gate drive
inputs. Short this pin to pin 20 (PWM_IN1) and pin 21 (PWN_IN2).
23 DP/GPIO1 DP
Default USB D+ / configurable GPIO. For support of legacy charging AFC and QC. IC does not support USB data transmission on this pin.
24 DM/GPIO2 DM
Default USB D- / configurable GPIO. For support of legacy charging AFC and QC. IC does not support USB data transmission on this pin. VDDD VDDD 5V LDO output from VIN. Connect a ceramic bypass capacitor (recommended value 1µF) from this pin to GND close to the IC. Connect all VDDD pins together. VDDD 5V LDO output from VIN. Connect a ceramic bypass capacitor (recommended value 10µF) from this pin to GND close to the IC. Connect all VDDD pins together. 26 GPIO3 LED1 Default LED1 for 15W MP-A11 application/configurable GPIO. Float this pin if it is not used. 27 GPIO4 LED2 Default LED2 for 15W MP-A11 application/configurable GPIO. Float this pin if it is not used. 28 XRES External reset – active low, internally pulled-up (~6kΩ). Float this pin if it is not used.
29 GPIO5/SCB0 SDA_SEC
Used for interfacing as Master, with OPTIGA™ Trust I 2C SDA. The pin is configured for open drain connection, connect an external pull-up resistor. Float this pin if it is not used.
30 GPIO6/SCB0 SCL_SEC
Used for interfacing with OPTIGA™ Trust I2C SCL. The pin is configured for open drain connection, connect an external pull-up resistor. Float this pin if it is not used. 31 GPIO7/SCB1 UART/GPIO7 Default UART Tx for debug/configurable GPIO. Float this pin if it is not used.
32 QCOMP2
Q-factor based foreign object detection (FOD) pre-charge measurement input for frequency counting. Short this pin to pin 37 (QCOMP1). 33 GPIO8 RES_SEC RESET for OPTIGA™ Trust IC. Configured for using OPTIGA™ Trust in low power mode. Float this pin if it is not used. 34, 64 GND Ground. Connect directly to the E-PAD and to ground plane. 35 NFET_CTRL_1 NFET gate driver output. Float this pin if it is not used. 36 ASK_SEL Input for ASK signal decoding. Short this pin to pin-19 (ASK_DEMOD).
37 QCOMP1 Q-factor based FOD pre-charge measurement input for peak
voltage detect. Short this pin to pin 32 (QCOMP2).
38 BB_IN
Input voltage to BUCK (DC-DC) controller. Connect to USB Type-C connector's VBUS pin. If EMI filter/choke is used after Type-C connector then connect it to output of the EMI filter/choke.
39 VBUS_IN
Input voltage feedback of buck (DC-DC). Connect to USB Type-C connector's VBUS pin. If EMI filter/choke is used after Type-C connector then connect it to output of the EMI filter/choke.
40 ASK_N Negative input of ASK voltage sensing signal input to internal
amplifier.
41 ASK_P Positive input of ASK voltage sensing signal input to internal
amplifier. Table 1 WLC1115 pinouts (continued) Pin# Pin name Pin function for 15W MP-A11 application firmware Pin description
Datasheet 8 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Pin information 42 ASK_TST ASK voltage sensing comparator output. Float this pin if it is not used.
43 BST2_1
Bootstrap power supply for (inverter bank 2) inverter high side gate driver. Connect a capacitor (recommended value 0.1µF) from this pin to SW2_1. Also, connect a Schottky diode from VDDD to BST2_1.
44 HG2_1
High side gate driver for inverter FET (inverter bank 2). Connect to the Inverter bank 2, high side FET gate. Use a wide trace to minimize inductance of this connection. 45 SW2_1 Inverter switching node for inverter bank 2. Connect this pin to the inverter bank 2 switching node with a short and wide trace.
46 VBB_1
Inverter input voltage sense. Connect to inverter input voltage, after the current sense resistor. Use a dedicated (Kelvin) trace for this connection. 47 LG2_1 Low side gate driver for inverter FET (inverter bank 2). Connect to the inverter bank 2 low side FET gate. 48 PVDD_1 Connect to VDDD pin. Connect bypass capacitors (recommended values 1µF and 0.1µF) as close to the IC as possible. 49 PGND_1 Ground for inverter gate driver. Connect directly to PCB ground plane and E-PAD. Connect all GND and PGND pins together. 50 LG1_1 Low side gate driver for inverter FET (inverter bank 1). Connect to the inverter bank 1 Low side FET gate. 51 SW1_1 Inverter switching node for inverter bank 1. Connect this pin to the Inverter bank 1 switching node with a short and wide trace. 52 HG1_1 High side gate driver for inverter FET (inverter bank 1). Connect to the inverter bank 1 high side FET gate.
53 BST1_1
Bootstrap power supply for (inverter bank 1) inverter high side gate driver. Connect a capacitor (recommended values 0.1µF) from this pin to SW1_1. Also, connect a Schottky diode from VDDD to BST1_1. 54 CSNI_1 DNU1 Negative input of input current sense amplifier for inverter. Float this pin if it is not used. 55 CSPI_1 DNU2 Positive input of input current sense amplifier for inverter. Float this pin if it is not used.
56 GPIO9/SCB3/SWD_DAT SWD_DAT/GPIO9 Used for I
2C/SWD register access or programming/configurable GPIO.
57 GPIO10/SCB3/SWD_CLK SWD_CLK/GPIO10 Used for I2C/SCL register access or programming/configurable
GPIO.
58 GPIO11/SCB3 TEMP_FB
Tx coil temperature measurement via thermistor monitoring for 15W MP-A11 application/configurable GPIO. Float this pin if it is not used. 59 GPIO12/SCB3 GPIO12 Configurable GPIO. Float this pin if it is not used. 60 GPIO13/CLK_IN GPIO13/CLK_IN Default used as input for external clock/configurable GPIO. Float this pin if it is not used. 61 VIN 4.5V–24V input supply. Connect a decoupling capacitor (recommended value 0.1µF) from this pin to GND close to this pin.
62 VCCD
1.8V LDO output for Arm®-M0 power and 1.8V references. Connect a decoupling capacitor (recommended value 0.1µF) from this pin to ground. Not for external use or loading.
65 CSPI_0
Positive input of USB input current sense amplifier (DC-DC). Connect to the positive terminal of the input current sense resistor. Use a dedicated (Kelvin) connection. Table 1 WLC1115 pinouts (continued) Pin# Pin name Pin function for 15W MP-A11 application firmware Pin description
Datasheet 9 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Pin information Figure 2 WLC1115 key pin mapping with buck and inverter power supplies [3]
66 CSNI_0
Negative input of USB input current sense amplifier t (DC-DC). Connect to the negative terminal of the input current sense resistor. Use a dedicated (Kelvin) connection.
67 BST1_0
Bootstrap power supply for buck (DC-DC) high side gate driver. Connect a capacitor (recommended value 0.1µF) from this pin to SW1_0. Also, connect a Schottky diode from VDDD to BST1_0.
68 HG1_0
High side gate driver output of buck converter (DC-DC bank 1). Connect to the buck high side FET gate. Use a wide trace to minimize inductance of this connection. EPAD Exposed ground pad. Connect directly to ground plane and pins 34 and 64. Table 1 WLC1115 pinouts (continued) Pin# Pin name Pin function for 15W MP-A11 application firmware Pin description DC‐DC bank 1 Inverter bank 1 Inverter bank 2 USB Type-C Receptacle HG1_0 LG1_0 HG1_1 LG1_1 HG2_1 LG2_1 SW1_0 SW1_1 SW2_1 CSPI_0 CSNI_0 VBUS_IN VBRG CSPO CSNO VBB_1 BB_IN NFET_CTRL_1 Note 3. Refer Figure 2 for an overview of key WLC1115 pin mapping to power input, current sense and gate drivers of buck and inverter power supplies.
Datasheet 10 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Pin information Figure 3 WLC1115 68-QFN pinout LG1_0 PGND_0 PVDD_0 ASK_OUT ASK_DEMOD PWM_IN1 PWM_IN2 PWM_OUT ASK_N VBUS_IN BB_IN QCOMP1 ASK_SEL NFET_CTRL_1 VDDD EPAD SW1_0 LG2_0 VBB_0 SW2_0 BST2_0 COMP HG2_0 CSPO CSNO VBRG VBRG_DIS CC1 CC2 NFET_CTRL_0 DP DM VDDD LED1 LED2 XRES SDA_SEC SCL_SEC UART/GPIO7 QCOMP2 RES_SEC GND SW2_1 HG2_1 BST2_1 ASK_TST ASK_P PGND_1 PVDD_1 LG2_1 VBB_1 SW1_1 LG1_1 VCCD VIN GPIO13/CLK_IN GPIO12 TEMP_FB SWD_CLK/GPIO10 SWD_DAT/GPIO9 DNU2 DNU1 BST1_1 HG1_1 CSPI_0 GND CSNI_0 BST1_0 HG1_0
Datasheet 11 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3 Electrical specifications
3.1 Absolute maximum ratings
Table 2 Absolute maximum ratings [4] Exceeding maximum ratings may shorten the useful life of the device. All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted. Parameter Description Min Typ Max Unit Description VIN Maximum input supply voltage V VDDD, PVDD Maximum supply voltage relative to VSS 6 VBUS Max VBRG_DIS (P0/P1) voltage relative to VSS 24 CC_0, ASK_SEL Max voltage on CC and ASK_SEL pins 24 QCOMP1 Max voltage on QCOMP1 pins –0.7 24 Current limited to 1mA for -0.7V minimum specification.QCOMP2 Input to QCOMP2 –0.7 VDDD + 0.5 GPIO Inputs to GPIO –0.5 VDDD + 0.5 –IGPIO Maximum current per GPIO –25 25 mA IGPIO_INJECTION GPIO injection current, Max for VIH > VDDD, and Min for VIL < VSS –0.5 0.5 Absolute max, current injected per pin ESD_HBM Electrostatic discharge (ESD) human body model (HBM) 2000 Applicable for all pins except CC1_0, CC2_0, ASK_SEL, QCOMP1 pins. ESD_HBM_CC ESDHBM for CC1 and CC2 pins for both ports 1100 Only applicable to CC1_0, CC2_0, ASK_SEL, QCOMP1 pins ESD_CDM ESD charged device model 500 Charged device model ESD LU Pin current for latch-up –100 100 mA –T J Junction temperature –40 125 °C Note 4. Usage above the absolute maximum conditions listed in Table 2 may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods of time may affect device reliability. The maximum storage temperature is 150°C in compliance with JEDEC Standard JESD22-A103, high temperature storage life. When used below absolute maximum conditions but above normal operating conditions, the device may not operate to specification.
Datasheet 12 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications Table 3 Pin based absolute maximum ratings Pin# Pin name Pin function for 15W MP-A11 application firmware Absolute minimum (V) Absolute maximum (V) 1S W 1 _ 0 - 0 . 7 3 5 2L G 1 _ 0 [5] -0.5 PVDD+0.5 3P G N D _ 0 - 0 . 3 0 . 3 4 PVDD_0 -0.3 VDD 5L G 2 _ 0 [5] -0.5 PVDD+0.5 6 VBB_0 -0.3 24 7S W 2 _ 0 - 0 . 3 2 4 8H G 2 _ 0 ( w . r . t S W 2 _ 0 ) 9 BST2_0 (w.r.t SW2_0) [5, 6, 7] 0P V D D + 0 . 5 10 COMP [5] -0.5 PVDD+0.5 11 CSPO -0.3 24 12 CSNO -0.3 24 13 VBRG -0.3 24 14 VBRG_DIS -0.3 24 15 CC1 -0.5 24 16 CC2 -0.5 24 17 NFET_CTRL_0 -0.5 32
18 ASK_OUT
[5] -0.5 PVDD+0.5 19 ASK_DEMOD [5] -0.5 PVDD+0.5 20 GD_OVR_HB_1 [5] PWM_IN1 -0.5 PVDD+0.5 21 GD_OVR_HB_2 [5] PWM_IN2 -0.5 PVDD+0.5 22 PWM_OUT [5] -0.5 PVDD+0.5 23 DP/GPIO1 [5] DP -0.5 PVDD+0.5 24 DM/GPIO2 [5] DM -0.5 PVDD+0.5 25, 63 VDDD -0.3 6 26 GPIO3 [5] LED1 -0.5 PVDD+0.5 27 GPIO4 [5] LED2 -0.5 PVDD+0.5 28 XRES [5] -0.5 PVDD+0.5 29 GPIO5/SCB0 [5] SDA_SEC -0.5 PVDD+0.5 30 GPIO6/SCB0 [5] SCL_SEC -0.5 PVDD+0.5 31 GPIO7/SCB1 [5] UART/GPIO7 -0.5 PVDD+0.5 32 QCOMP2 [5, 8] -0.7 PVDD+0.5 33 GPIO8 [5] RES_SEC -0.5 PVDD+0.5 34,64 GND -0.3 0.3 35 NFET_CTRL_1 -0.5 32 36 ASK_SEL -0.5 24
37 QCOMP1
[8] -0.7 24 Notes 5. Max voltage cannot exceed 6 V. 6. Max absolute voltage w.r.t GND must not exceed 40V. 8. Current limited to 1mA for -0.7V minimum specification only.
Datasheet 13 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications 38 BB_IN -0.3 24 39 VBUS_IN -0.3 24 40 ASK_N -0.3 24 41 ASK_P -0.3 24
42 ASK_TST
[5] -0.5 PVDD+0.5 43 BST2_1 (w.r.t SW2_1) [5, 6, 7] 0P V D D + 0 . 5 44 HG2_1 (w.r.t SW2_1) [5, 6] -0.5 PVDD+0.5 45 SW2_1 -0.7 24 46 VBB_1 -0.3 24
47 LG2_1
[5] -0.5 PVDD+0.5 48 PVDD_1 -0.3 VDDD 49 PGND_1 -0.3 0.3
50 LG1_1
[5] -0.5 PVDD+0.5 51 SW1_1 -0.7 35 52 HG1_1 (w.r.t SW1_1) 53 BST1_1 (w.r.t SW1_1) [5, 6, 7] 0P V D D + 0 . 5 54 CSNI_1 DNU1 -0.3 40 55 CSPI_1 DNU2 -0.3 40 56 GPIO9/SCB3/SWD_DAT [5] SWD_DAT/GPIO9 -0.5 PVDD+0.5 57 GPIO10/SCB3/SWD_CLK [5] SWD_CLK/GPIO10 -0.5 PVDD+0.5 58 GPIO11/SCB3 [5] TEMP_FB -0.5 PVDD+0.5 59 GPIO12/SCB3 [5] GPIO12 -0.5 PVDD+0.5 60 GPIO13/CLK_IN [5] GPIO13/CLK_IN -0.5 PVDD+0.5 61 VIN -0.3 40 62 VCCD -0.3 2 65 CSPI_0 -0.3 40 66 CSNI_0 -0.3 40 67 BST1_0 (w.r.t SW1_0) [5, 6, 7] 0P V D D + 0 . 5 68 HG1_0 (w.r.t SW1_0) [5, 6] -0.5 PVDD+0.5 EPAD -0.3 0.3 Table 3 Pin based absolute maximum ratings (continued) Pin# Pin name Pin function for 15W MP-A11 application firmware Absolute minimum (V) Absolute maximum (V) Notes 5. Max voltage cannot exceed 6 V. 6. Max absolute voltage w.r.t GND must not exceed 40V. 8. Current limited to 1mA for -0.7V minimum specification only.
Datasheet 14 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.2 Device-level specifications
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted.
3.3 DC specifications
3.3.1 CPU
Table 4 DC specifications (Operating conditions) Spec ID Parameter Description Min Typ Max Unit Details/conditions SID.PWR#1 VIN Input supply voltage 4.5 V SID.PWR#2 VDDD VDDD output voltage range 4.6 5.5 5.5V < VINS < 24V; Max load = 150 mA SID.PWR#3 VDDD_MIN VDDD dropout voltage VIN - 0.2 – 4.5V < VIN < 5.5V; Max load = 20 mA SID.PWR#20 VBRG VBRG_0 output range 3 22 VIN > VBRG SID.PWR#5 VCCD VCCD output voltage 1.8 SID.PWR#25 IDD_ACT48M Operating quiescent current at 0.4MHz switching frequency 87 mA TA = 25°C, VIN = 12V. CC IO in Transmit or Receive, no I/O sourcing current, No VCONN load current, CPU at 48MHz, buck and inverter ON, 3-nF gate driver capacitance. Table 5 CPU specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions SID.CLK#4 F CPU CPU input frequency – – 48 MHz SYS.XRES#5 Tx RES External reset pulse width 5– – µ s SYS.FES#1 T _PWR_RDY Power-up to “Ready to accept I2C/CC command” –5 2 5 m s
Datasheet 15 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.3.2 GPIO
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted. Table 6 GPIO specifications Spec ID Parameter Description Min Typ Max Unit Details/ Conditions GPIO DC specifications SID.GIO#9 V IH_CMOS Input voltage HIGH threshold 0.7 × VDDD V CMOS input SID.GIO#10 V IL_CMOS Input voltage LOW threshold –0 . 3 × V D D D SID.GIO#7 V OH Output voltage HIGH level VDDD – 0.6 – IOH = –4mA SID.GIO#8 V OL Output voltage LOW level – 0.6 IOL = 10mA SID.GIO#2 Rpu Pull-up resistor when enabled 3.5 5.6 8.5 kΩ – SID.GIO#3 Rpd Pull-down resistor when enabled 3.5 5.6 8.5 SID.GIO#4 I IL Input leakage current (absolute value) 2n A TA = 25°C, VDDD = 3V SID.GIO#5 C PIN_A Max pin capacitance 22 pF Capacitance on DP , DM pins SID.GIO#6 C PIN Max pin capacitance 3 7 All VDDD, all other I/Os SID.GIO#13 V HYSTTL Input hysteresis, LVTTL, VDDD > 2.7V 100 –– m V VDDD > 2.7V SID.GIO#14 V HYSCMOS Input hysteresis CMOS 0.1 × VDDD – GPIO AC specifications SID.GIO#16 T RISEF Rise time in Fast Strong mode 2 ns Cload = 25pF SID.GIO#17 T FALLF Fall time in Fast Strong mode 21 2 SID.GIO#18 T RISES Rise time in Slow Strong mode 10 60 SID.GIO#19 T FALLS Fall time in Slow Strong mode 10 60 SID.GIO#20 F GPIO_OUT1 GPIO FOUT; 3.0V VDDD 5.5V. Fast Strong mode. MHzSID.GIO#21 F GPIO_OUT2 GPIO FOUT; 3.0V VDDD 5.5V. Slow Strong mode. SID.GIO#22 F GPIO_IN GPIO input operating frequency; 3.0 V VDDD 5.5 V. GPIO OVT DC specifications SID.GPIO_20VT_ GIO#4 GPIO_20VT_I_LU GPIO_20VT latch up current limits –140 – 140 mA Max / min current in to any input or output, pin-to-pin, pin-to-supply
Datasheet 16 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications SID.GPIO_20VT_ GIO#5 GPIO_20VT_RPU GPIO_20VT pull-up resistor value 3.5 8.5 kΩ –40°C ≤ TA ≤ +105°C, All VDDD SID.GPIO_20VT_ GIO#6 GPIO_20VT_RPD GPIO_20VT pull-down resistor value +105°C, All VDDD SID.GPIO_20VT _GIO#16 GPIO_20VT_IIL GPIO_20VT input leakage current (absolute value) – 2 nA +25°C TA, 3V VDDD SID.GPIO_20VT _GIO#17 GPIO_20VT_CPIN GPIO_20VT pin capacitance 10 pF –40°C ≤ TA ≤ +105°C, All VDDD SID.GPIO_20VT _GIO#33 GPIO_20VT_Voh GPIO_20VT output voltage high level VDDD - 0.6 – V IOH = -4mA SID.GPIO_20VT _GIO#36 GPIO_20VT_Vol GPIO_20VT output voltage low level – 0.6 IOL = 8mA SID.GPIO_20VT _GIO#41 GPIO_20VT_Vih_ LV TTL GPIO_20VT LVTTL input 2– –40°C ≤ TA ≤ +105°C, All VDDD SID.GPIO_20VT _GIO#42 GPIO_20VT_Vil_ LV TTL GPIO_20VT LVTTL input –0 . 8 –40°C ≤ TA ≤ +105°C, All VDDD SID.GPIO_20VT _GIO#43 GPIO_20VT_ Vhysttl GPIO_20VT input hysteresis LVTTL 100 – mV –40°C ≤ TA ≤ +105°C, All VDDD SID.GPIO_20VT _GIO#45 GPIO_20VT_ ITOT_G PIO GPIO_20VT maximum total sink pin current to ground –9 5 m A V (GPIO_20VT Pin) > VDDDs GPIO OVT AC specifications SID.GPIO_20VT_70 GPIO_20VT_TriseF GPIO_20VT Rise time in Fast Strong Mode 1 ns All VDDD, Cload = 25pF SID.GPIO_20VT_71 GPIO_20VT_TfallF GPIO_20VT Fall time in Fast Strong Mode 11 5 SID.GPIO_20VT_ GIO#46 GPIO_20VT_ TriseS GPIO_20VT Rise time in Slow Strong Mode 10 70 SID.GPIO_20VT_ GIO#47 GPIO_20VT_TfallS GPIO_20VT Fall time in Slow Strong Mode 10 70 SID.GPIO_20VT_ GIO#48 GPIO_20VT_FGPIO _OUT1 GPIO_20VT GPIO Fout; 3V ≤ VDDD ≤ 5.5V. Fast Strong mode. MHzSID.GPIO_20VT_ GIO #50 GPIO_20VT_FGPIO _OUT3 GPIO_20VT GPIO Fout; 3V ≤ VDDD ≤ 5.5V. Slow Strong mode. SID.GPIO_20VT_ GIO #52 GPIO_20VT_FGPIO _IN GPIO_20VT GPIO input operating frequency; 3V ≤ VDDD ≤ 5.5V 8A l l V D D D Table 6 GPIO specifications (continued) Spec ID Parameter Description Min Typ Max Unit Details/ Conditions
Datasheet 17 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.3.3 XRES and POR
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted. Table 7 XRES specifications Spec ID Parameter Description Min Typ Max Unit Details/ conditions XRES DC specifications SID.XRES#1 V IH_XRES Input voltage HIGH threshold on XRES pin 0.7 × VDDD VC M O S i n p u t SID.XRES#2 V IL_XRES Input voltage LOW threshold on XRES pin 0.3 × VDDD SID.XRES#3 C IN_XRES Input capacitance on XRES pin 7p F SID.XRES#4 V HYSXRES Input voltage hysteresis on XRES pin 0.05 × VDDD – mV Imprecise POR (IPOR) specifications SID185 V RISEIPOR POR rising trip voltage 0.80 – 1.50 V -40°C < TA < +105°C, all VDDDSID186 V FALLIPOR POR falling trip voltage 0.70 1.4 Precise POR (POR) specifications SID190 V FALLPPOR Brown-out detect (BOD) trip voltage in active/sleep modes 1.48 1.62 all VDDD SID192 V FALLDPSLP BOD trip voltage in Deep Sleep mode 1.1 1.5
Datasheet 18 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.4 Digital peripherals
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted. The following specifications apply to the Timer/counter/PWM peripherals in the Timer mode.
3.4.1 Inverter pulse-width modu lation (PWM) for GPIO pins
3.4.2 I 2C, UART , SWD interface
3.4.3 Memory
Table 8 PWM AC specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions SID. TCPWM.1 PWM_OUT Operating frequency 85 127.7 600 kHz PWM_OUT pin SID. TCPWM.3 T PWMEXT Output trigger pulse width 2/Fc – – ns Minimum possible width of overflow, underflow, and CC (counter equals compare value) outputs. Fc = System clock. Table 9 Communication interface specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions Fixed I2C AC specifications SID153 F I2C1 Bit rate – – 1 Mbps – Fixed UART AC specifications SID16 F UART Bit rate – – 1 Mbps – SWD interface specifications SID.SWD#1 F_SWDCLK1 3.0V ≤ VDDIO ≤ 5.5V –
14 MHz –
SID.SWD#2 T_SWDI_SETUP T = 1/f SWDCLK 0.25 × T – ns –SID.SWD#3 T_SWDI_HOLD 0.25 × T – SID.SWD#4 T_SWDO_VALID – 0.50 × T SID.SWD#5 T_SWDO_HOLD 1 – Table 10 Flash AC specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions SID.MEM#2 FLASH_WRITE Row (block) write time (erase and program) ms SID.MEM#1 FLASH_ERASE Row erase time 15.5 SID.MEM#5 FLASH_ROW_ PGM Row program time after erase 7 SID178 T BULKERASE Bulk erase time (32KB) 35 SID180 T DEVPROG Total device program time 7.5 s SID.MEM#6 FLASH ENPB Flash write endurance 100k cycles 25°C < TA < 55°C SID182 F RET1 Flash retention, TA < 55°C, 100K P/E cycles 20 years – SID182A F RET2 Flash retention, TA < 85°C, 10K P/E cycles 10
Datasheet 19 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.5 System resources
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted.
3.5.1 Internal main oscillator clock
3.5.2 PD Table 11 IMO AC, clock specifications Spec ID Parameter Description Min Typ Max Unit Details/ conditions IMO AC specifications SID.CLK#13 F IMOTOL Frequency variation at 48MHz (trimmed) –2 +2 % 3.0V < VDDD < 5.5V SID226 T STARTIMO IMO start-up time – 7 µs –SID.CLK#1 F IMO IMO frequency 24 48 MHz External clock specifications SID.305 EXTCLKFREQ External clock input frequency –4 8–M H z
3.0 V < VDDD <
5.5V. Tolerance 50 ppm. Table 12 PD DC specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions SID.DC.cc_shvt.1 vSwing Transmitter output high voltage 1.05 1.2 V SID.DC.cc_shvt.2 vSwing_low Transmitter output low voltage –0 . 0 7 5 SID.DC.cc_shvt.3 zDriver Transmitter output impedance 33 75 SID.DC.cc_shvt.4 zBmcRx Receiver input impedance 10 – M SID.DC.cc_shvt.8 Rd Pull down termination resistance when acting as UFP 4.59 5.61 k SID.DC.cc_shvt.10 zOPEN CC impedance to ground when disabled 108 – SID.DC.cc_shvt.15 UFP_default_0 p66 CC voltages on UFP side-standard USB 0.61 0.7 V SID.DC.cc_shvt.16 UFP_1.5A_1p23 CC voltages on UFP side-1.5A 1.16 1.31 SID.DC.cc_shvt.17 Vattach_ds Deep Sleep attach threshold 0.3 0.6 % SID.DC.cc_shvt.18 Rattach_ds Deep Sleep pull-up resistor 10 50 k SID.DC.cc_shvt.19 VTX_step TX drive voltage step size 80 120 mV
Datasheet 20 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.5.3 ADC
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted.
3.5.4 Current sense amplifier (CSA) / ASK amplifier (ASK_P and ASK_N)
Table 13 ADC DC specifications Spec ID Parameter Description Min Typ Max Unit Details/ conditions SID.ADC.1 Resolution ADC resolution – 8 – Bits – SID.ADC.2 INL Integral non-linearity -1.5 1.5 LSB Reference voltage generated from bandgap SID.ADC.3 DNL Differential non-linearity -2.5 2.5 Reference voltage generated from VDDD SID.ADC.4 Gain Error Gain error -1.5 1.5 Reference voltage generated from bandgap SID.ADC.5 VREF_ADC1 Reference voltage of ADC VDDDmin VDDDmax V Reference voltage generated from VDDD SID.ADC.6 VREF_ADC2 Reference voltage of ADC 1.96 2.0 2.04 Reference voltage generated from deep sleep reference Table 14 CSA/ASK amplifier specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions HS CSA DC specifications SID.HSCSA.7 Csa_SCP_Acc1 CSA short circuit protection (SCP) at 6A with 5/10/20m sense resistor -10 Active modeSID.HSCSA.8 Csa_SCP_Acc2 CSA SCP at 10A with 5/10/20m sense resistor -10 10 SID.HSCSA.9 Csa_OCP_1A CSA OCP at 1A with 5/10/20m sense resistor 104 130 156 SID.HSCSA.10 Csa_OCP_5A CSA OCP for 5A with 5/10/20m sense resistor 117 130 143 SID.HSCSA.13 Csa_CBL_MON_Acc2 Vsense > 10mV – 3.5 – CSA sense accuracy. Active mode. 3.0 V < VDDD < 5.5 V. T A = 25°C. CSA AC specifications SID.HSCSA.AC.1 T SCP_GATE Delay from SCP threshold trip to external NFET power gate turn off – 3.5 –µ s 1 nF NFET gate SID.HSCSA.AC.2 T SCP_GATE_1 Delay from SCP threshold trip to external NFET power gate turn off 83 n F N F E T g a t e
Datasheet 21 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.5.5 VIN UV/OV
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted.
3.5.6 Voltage regulation - VBRG
Table 15 VIN UV/OV specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions SID.UVOV.1 VTHOV1 Overvoltage threshold accuracy, 4V-11V -3 %A c t i v e m o d e SID.UVOV.2 VTHOV2 Overvoltage threshold accuracy, 11V-21.5V -3.2 3.2 SID.UVOV.3 VTHUV1 Undervoltage threshold accuracy, 3V-3.3V -4 4 SID.UVOV.4 VTHUV2 Undervoltage threshold accuracy, 3.3V-4.0V -3.5 3.5 SID.UVOV.5 VTHUV3 Undervoltage threshold accuracy, 4.0V-21.5V -3 3 Table 16 VBRG specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions VBRG discharge specifications SID.VBUS.DISC.1 R_DIS1 20V NMOS ON resistance for DS = 1 500 2000 Ω Measured at 0.5V SID. VBUS.DISC.2 R_DIS 2 20V NMOS ON resistance for DS = 2 250 1000 SID. VBUS.DISC.3 R_DIS 4 20V NMOS ON resistance for DS = 4 125 500 SID. VBUS.DISC.4 R_DIS 8 20V NMOS ON resistance for DS = 8 62.5 250 SID. VBUS DISC.5 R_DIS 16 20V NMOS ON resistance for DS = 16 31.25 125 SID. VBUS.DISC.6 VBRG_stop_error Error percentage of final VBRG value from setting –1 0 % When VBRG is discharged to 5V Voltage regulation DC specifications SID.DC.VR.1 VBB VBB output voltage range 3.0 – 22 V –SID.DC.VR.2 VR VBB voltage regulation accuracy -5 ±3 +5 % SID.DC.VR.3 VIN_UVLO VIN supply below which chip will get reset 1.7 3.0 V SID.VREG.1 TSTART Total startup time for the regulator supply outputs – 200 µs Specification for VDDD LDO
Datasheet 22 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.5.7 NFET gate driver specifications
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted.
3.5.8 Buck PWM controller
Table 17 NFET gate driver specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions NFET gate driver DC specifications SID.GD.1 GD_VGS Gate to source overdrive during ON condition 4.5 5 10 V NFET driver is ON SID.GD.2 GD_RPD Resistance when pull-down enabled ––2 k Ω Applicable on NFET_CTRL to turn off external NFET . NFET gate driver AC specifications SID.GD.3 T ON NFET_CTRL Low to High (1V to VBUS + 1V) with 3nF external capacitance. 2 5 10 ms VBUS = 5V SID.GD.4 T OFF NFET_CTRL High to Low (90% to 10%) with 3nF external capacitance. –7– µ s V B U S = 21.5V Table 18 PWM controller specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions PWM controller specifications PWM.1 F SW Buck switching frequency 150 – 600 kHz GD1 Fsw Gd Ovr Inverter switching frequency 85 600 Pins PWM_IN1 and PWM_IN2 are connected to pin PWM_OUT . PWM.2 FSS Spread spectrum frequency dithering span –1 0– % – Buck gate driver specifications DR.1 R_HS_PU Top-side gate driver on-resistance - gate pull-up Ω DR.2 R_HS_PD Top-side gate driver on-resistance - gate pull-down 1.5 DR.3 R_LS_PU Bottom-side gate driver on-resistance - gate pull-up 2 DR.4 R_LS_PD Bottom-side gate driver on-resistance - gate pull-down 1.5 DR.5 Dead_HS Dead time before high-side rising edge 30 nsDR.6 Dead_LS Dead time before low-side rising edge 30 DR.7 Tr_HS Top-side gate driver rise time 25 DR.8 Tf_HS Top-side gate driver fall time 20 NFET gate driver specifications DR.9 Tr_LS Bottom-side gate driver rise time – 25 –n s –DR.10 Tf_LS Bottom-side gate driver fall time 20
Datasheet 23 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Electrical specifications
3.5.9 Thermal
All specifications are valid for -40°C TA 105°C and T J 125°C, except where noted. Table 19 Thermal specifications Spec ID Parameter Description Min Typ Max Unit Details/conditions SID.OTP .1 OTP Thermal shutdown 120 125 130 °C –
Datasheet 24 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview
4 Functional overview
4.1 Wireless power transmitter
WLC1115 supports wireless power transfer between power transmitter (TX) and power receiver (RX), based on inductive power transfer technology (IPT). The Tx runs an alternating electrical current through the Tx coil(s) to generate an alternating magnetic field in accordance with Faraday's law. This magnetic field is mutually coupled to the Rx coil inside the power receiver and is transformed back into an alternating electrical current that is rectified and stored on a Vrect capacitor bank to power the Rx load. Before the power transfer begins, the Rx and Tx communicate with each other to establish that a valid Rx device has been placed and they negotiate the level of power to be transferred during the charging cycle. The digital communication used by Tx and Rx is in-band communication. The communication from Tx to Rx is frequency shift key (FSK) modulation and from Rx to Tx is amplitude shift key (ASK) modulation. The WLC1115 solution is compliant with the Qi v1.3.x standard up to 15W. The WLC1115 operates in both BPP or EPP depending on the capabilities of the Rx that gets placed by the user. WLC1115 offers a highly integrated wireless power transmitter solution with a USB Type-C PD controller following the Qi v1.3.x standard. This includes ready to use firmware stack with a robust demodulation scheme for continuous power transfer and reliable FOD to ensure safety. WLC1115 firmware stack comes with a high level of configurable options to enable differentiation by application using the configuration utility tool.
4.2 WPC system control
WLC1115 controls the wireless power system in compliance with Qi standard version 1.3.x. The system control covers power transfer, system monitoring, and various phases of operation under BPP or EPP receivers depending on the Rx type placed onto the Tx pad. Figure 4 WPC system control flow chart (negotia tion, calibration and authentication are for EPP only) [9] Note 9. The Functional overview section only describes the Qi specification. However, IC can support wireless charging pro- prietary power delivery extensions (PPDE)/Samsung FC. Selection Ping Identification Configuration Calibration Power Transfer Limited to 5W Renegotiation Negotiation Start Object Detected No Response or No power nedded Receiver Present Negotiation Requested Negotiation Successful Negotiation Failure Or Error Calibration Successful Calibration Failure Or Error Error Renegotiation Requested Renegotiation Completed Error Power Transfer Complete Or Error No Negotiation Requested (<5W PRx) Is Authentication Required Is Authentication Challenge Succesful Power Transfer As per Negotiation No No Yes Yes
Datasheet 25 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview
4.2.1 Selection phase
The Tx monitors the interface surface using low energy signals (analog ping or Q-factor) to detect objects' placement and removal. The Analog Ping energy is limited such that impedance changes above the Tx coil may be detected without powering or waking up the receiver. The WLC1115 sets the Bridge (VBRG) voltage powering the inverter to a low voltage to generate sufficient energy to measure for any interface impedance changes without transferring any power during the selection phase.
4.2.2 Digital ping phase
In this phase, the Tx sends a power signal that is sufficient to power the receiver and prompt a response. This signal is called Digital Ping and the magnitude and length of time are predefined by the WPC Tx specifications. The Digital Ping phase ends when no response is detected or the Rx responds with a signal strength packet (SSP). When the Tx receives a valid SSP , the Digital Ping is extended and the system proceeds to the Identification and Configuration phase.
4.2.3 Identification and configuration phase
In this phase, the Tx identifies whether the Rx belongs to BPP or EPP profile. Additionally, in this phase, the Tx obtains configuration information such as the maximum amount of power that the Rx may require at its output. The power transmitter uses this information to create a Power Transfer Contract. If the receiver is a BPP type then the power transmitter enters into the power transfer phase at the completion of the ID and Config phase as shown in Figure 8 or with EPP receivers it proceeds to the negotiation phase if requested by the Rx.
4.2.4 Negotiation
In this phase, the EPP power receiver negotiates with the power transmitter to fine-tune the power transfer contract. For this purpose, the power receiver sends negotiation requests to the power transmitter, which the power transmitter can grant or deny. In compliance with Q-factor FOD, the Tx will compare the Q-factor reported by the Rx with its own measurement to determine if the Q-factor of the coil is appropriate for the Rx that has been placed (EPP only). If the Tx Q-factor reading is too low it will flag a QFOD alarm and return to the selection phase.
4.2.5 Calibration
When this phase is requested, the Tx will ACK the request and commence with the EPP Rx to enable and enter the calibration phase to calibrate for transmitter power losses at two fixed receiver loads. This system’s power loss information will be used by the Tx to detect the presence of foreign objects on the interface surface during the power delivery phase.
4.2.6 Authentication
Post successful calibration, Tx enters into power transfer mode limited to 5W. In this mode, Rx can request and challenge Tx for authentication. In case of successful authentication, Tx proceeds with negotiated power delivery. If authentication challenge is not successful then Tx continues to be in power transfer mode, limited to 5W. WLC1115 provides an I 2C port for interfacing with OPTGA™ Trust Charge IC to enable authentication.
4.2.7 Renegotiation phase
In this phase, the EPP Rx can request to adjust the power transfer contract. This phase may be aborted prematurely without changing the power transfer contract.
Datasheet 26 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview
4.2.8 Power transfer phase
In this phase, the Tx transfers power to the Rx and the power level is determined by the control error packets (CEP) and limited by the guaranteed power contract. Power loss FOD is also enabled and utilized to prevent excessive power loss which could result in FO heating. 1. CEP: These packets are used by the Tx to adjust the amount of power being sent. The CEP may be positive, negative, or 0. The Tx adjusts its operating point based on the value of the CEP . The CEP packet must be received every 1.8s (configurable) or power will be withdrawn along with other constraints that specify when a CEP may be sent by the Rx as defined in the WPC specifications. 2. Received power packet (RPP): The packet (8 bits for BPP and 24 bits for EPP) contains power received by receiver. The RPP is used by the Tx to determine if the power loss is safe or excessive based on the FOD thresholds contained in the FW. 3. End power transmit (EPT): The Rx may send an EPT packet anytime to inform Tx to withdraw/terminate the power delivery. The Tx will end the power transfer immediately if an EPT packet is received. The Rx and Tx communicate with each other by modulating the carrier wave used to transfer power. The following sections describe the communication layer used and defined by the WPC.
4.2.9 Bidirectional in-band communication interface
The Qi standard requires bi-directional in-band communication between Tx and Rx. The communication from Tx to Rx is FSK and is implemented by the Tx alternating the carrier wave frequency. The communication from Rx to Tx is ASK and is created by modulating the load on the Rx side causing a reflection to appear on the Tx which is filtered and decoded.
4.3 Communication from Tx to Rx - FSK
The power transmitter communicates to the power receiver using frequency shift keying, in which the power transmitter modulates the operating frequency of the power signal. In FSK, the Tx changes its operating frequency between the current operating frequency (f OP) to an alternate frequency (fMOD) in the modulated state. The difference between these two frequencies is characterized by two parameters that are determined during the initial ID and config stage of the wireless power connection:
- Polarity: This parameter determines whether the difference between fMOD and fOP is positive or negative.
- Depth: This parameter determines the magnitude of the difference between fOP and fMOD in Hertz (Hz). The Tx uses a differential bi-phase encoding scheme to modulate data bits to the carrier wave. For this purpose, the Tx aligns each data bit to segments of 512 cycles of the carrier wave frequency. Figure 5 Example of differenti al bi-phase encoding - FSK
Datasheet 27 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview
4.4 Communication from Rx to Tx - ASK
In the ASK communication scheme, the Rx modulates the amount of power that it draws from the Tx power signal. The Tx detects this through as a modulation of the Tx current and/or voltage and uses a demodulation scheme to convert the modulated signal into a binary signal. The Rx shall use a differential bi-phase encoding scheme to modulate data bits onto the power signal. For this purpose, the power receiver shall align each data bit to a full period t CLK of an internal clock signal, such that the start of a data bit coincides with the rising edge of the clock signal. This internal clock (INTCLK) signal shall have a frequency fCLK = 2kHz 4%. tCLK is time period of the INTCLK clock. Figure 6 Example of differenti al bi-phase encoding - ASK When the Tx receives a modulated signal from the Rx the information is decoded and the Tx will react to the packet according to the type and the WPC specification.
4.5 Demodulation
The WLC1115 ASK demodulating and decoding scheme works by detecting voltage and current variations in the Tx coil caused by the Rx modulation signal. The voltage path for ASK uses an external band pass filter to filter the demod signal out of the carrier wave. The current sense uses the bridge current sense resistor and an integrated differential amplifier to sense the ASK variations. Both ASK sensing paths can be multiplexed to the external Opamp filter and comparator to improve communication in low signal-to-noise environments or conditions. Figure 7 shows the demodulation path used for current and voltage sensing of the modulation signal for packet decoding. Figure 7 WLC1115 voltage and current demodulation path for ASK
4.6 Inverter
The WLC1115 uses the integrated buck controller to generate the bridge voltage used to power the full-bridge inverter that powers the Tx resonance tank to deliver power to the Rx. The inverter supports a wide input operating voltage range (3V to 22V) for power transfer. The integrated gate drivers of the WLC1115 are designed to control a full bridge or half-bridge Inverter depending on the WPC specification type and operating scenario. The inverter is capable of operating at switching frequencies between 85kHz and 600kHz but are typically limited to 110kHz to 148kHz. During the power transfer phase, the inverter responds to Rx CEP packets by adjusting the operating frequency or adjusting the bridge voltage. The power control method (variable voltage or variable frequency) is determined by the WPC specification but may be altered in order to promote better interoperability and user experience. Low pass & Peak detector High pass filter ASK_AMP Volt Path Pulse amplifier ASK_OUT ASK_AMP Current Path COIL‐SNS ASK_P ASK_N CSPO_0 CSNO_0 Comparator ASK_DEMOD
Datasheet 28 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview
4.7 Rx detection
During the selection phase, the Tx will periodically poll the interface to detect impedance changes in order to quickly send a Digital Ping within 0.5s of a user placing an Rx. During this phase, the WLC1115 is able to distinguish between large ferrous objects (such as keys or coins) and regular Rx devices using Q factor, input current, or shifts in resonance frequency to attempt FOD before power transfer. In case of marginally high input current or resonance shifts, the Tx will commence to Digital Ping in order to guarantee a connection with a valid Rx is made in a timely manner. The typical sequence of operations used to scan the interface for Rx placement (or removal if an EPT is received during power transfer) is shown in Figure 8. Figure 8 Typical selection phase Rx detection timing diagram Figure 9 describes the process used during the selection phase for quick Rx detection and connection. Figure 9 Typical selection phase flow chart for Rx detection and connection The Rx detection in Figure 9 also covers foreign object detection. The foreign object is identified by using Q factor. In case of foreign object detection, the process flow proceeds to analog ping (APNG). Further details about foreign object detection is covered in “Foreign object detection (FOD)” on page 29. time (s)0 Analog PING Q‐Factor Digital PING Analog PING APING Interval (s) Q‐Factor Digital PING DPING Interval (s) Tx Power up Run Q‐ factor and DPING Rx Detected? Yes Go to power XFER Goto APING @interval Object Detected? Yes DPING interval? No
Datasheet 29 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview
4.7.1 Foreign object detection (FOD)
WLC1115 supports enhanced FOD as per Qi v1.3.x standard. This includes FOD based on Q factor, resonance frequency, power loss, and over temperature (if a thermistor is used).
4.7.2 Q factor FOD and Resonance Frequency FOD
WLC1115 offers integrated Q factor and resonance frequency measurements for QFOD pre-power delivery. The measurements are made using the internal comparators QCOMP1 and QCOMP2 and the simple external components to charge the resonance capacitor and then discharge by shorting the LC tank and observing the resulting oscillation and voltage decay. The measurement of the Q factor is performed directly before every digital ping. The number of cycle count ‘N’ between two coil voltages V1 and V2 and period between corresponding rising edge pulses are used for Q factor and resonance frequency measurement as shown in Figure 10. Figure 10 WLC1115 Q factor measurement schematic and signal
4.7.3 Power loss FOD
WLC1115 supports power loss FOD during power transfer. The power loss FOD uses the Tx power measured at the buck output and is the product of the bridge voltage and the bridge current (current is sensed at inputs CSPO_0 and CSNO_0). This result for Tx power is further adjusted by tuning FOD coefficients to account for inverter losses and friendly metal losses. After computing the calibrated Tx power the result is compared against the latest RPP value sent by the Rx. If the difference between Tx_Power_Calibrated and RPP exceeds the Ploss threshold then an FOD event is logged. To prevent erroneous disconnects and improve user experience the WLC1115 will only disconnect the power for Ploss FOD in the event that three consecutive Ploss threshold breaches occur. The FOD coefficients and the Ploss thresholds are configurable to adapt to the system design.
4.7.4 Over temperature FOD
The WLC1115 is able to monitor interface temperature if an external NTC thermistor is connected and placed in contact with the Tx coil. This can be enabled to disconnect the Tx from the Rx in the event that the Tx coil temperature exceeds a configurable threshold. Lp Cp COIL‐SNS T_period NQ‐Factor = π*N/ [LN(V1/V2)] Resonance Frequency = 1 / T_period SW1_1 SW2_1 Q_COMP VDDD R2 C2
Datasheet 30 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview
4.7.5 Buck regulator
The buck regulator powers the inverter at the input node VBRG to enable power transfer per Qi. The buck regulator of WLC1115 requires input and output bypass capacitors as well as two FETs and an inductor. The necessary external components and connections are shown in Figure 11. The buck also offers current protection using a cycle-by-cycle current sense amplifier connected across resistance CSR1, integrated high and low side gate drivers, and automatic PWM generation for output voltage control. The effective capacitance and inductor have been deliberately selected to optimize buck performance and any substitutions should be made using equivalent components as those found in the reference schematic and using hardware design guidelines. Figure 11 WLC1115 typical buck regu lator schematic for VBRG generation The WLC1115’s buck controller provides two N-channel MOSFET gate drivers: complete with a floating high-side gate driver via HG1_0 and a ground-referenced low-side driver via LG1_0 pins. The gate drivers are powered by VDDD and are a nominal voltage of 5 V. The Buck regulator switching frequency is programmable and can be set between 150kHz and 600kHz. In order to prevent EMI related issue’s gate drivers, have programmable drive strength, dead-time, and can be run in a dithering mode to spread the radiated spectrum energy levels. An external capacitor and Schottky diode from the BST1_0 pin are used for the high-side gate drive power supply. Furthermore, the high and low-side gate driver blocks include zero-crossing detector (ZCD) to implement discontinuous-conduction mode (DCM) mode with diode emulation. The WLC1115’s buck controller uses an integrated error amplifier for output voltage regulation. The error amplifier is a trans-conductance type amplifier with a single compensation pin (COMP_0) which requires the RC filter shown in the reference schematic to be connected from this pin to GND. The WLC1115 supports high-voltage (22V) VBRG discharge circuitry and upon detection of device disconnection, faults, or hard resets, the chip may discharge the VBRG node to vSafe5V and/or vSafe0V within the time limits specified in the USB PD specification. WLC1115 HG1_0 LG1_0 CSPI_0 CSNI_0 BST1_0 SW1_0 BST2_0 SW2_0 5 m CSR1 VDDD VDDD CSPO CSNO VBRG 5/10/20 m CSR2 USB PD VBRG VBB_1
Datasheet 31 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview
4.8 Buck operating modes
4.8.1 Pulse-width modulator (PWM)
The WLC1115 has a PWM generator to control the external FETs using the integrated gate drivers in peak current mode control. This is the primary operating mode when the buck is loaded by the inverter and power transfer is in progress.
4.8.2 Pulse skipping mode (PSM)
The WLC1115 buck has two firmware-selectable operating modes to optimize efficiency and reduce losses under light load conditions: Pulse-skipping mode (PSM) and forced-continuous-conduction mode (FCCM). In PSM, the controller reduces the total number of switching pulses without reducing the active switching frequency by working in “bursts” of normal nominal-frequency switching interspersed with intervals without switching. The output voltage thus increases during a switching burst and decreases during a quiet interval. This mode results in minimal losses with a tradeoff of having higher output voltage ripple. When in this mode, WLC1115 devices monitor the voltage across the buck sync FET to detect when the inductor current reaches zero; when this occurs, the WLC1115 devices switch off the buck sync FET to prevent reverse current flow from the output capacitors (i.e. diode emulation mode).
4.8.3 Forced-continuous-conduction mode (FCCM)
In forced-continuous-conduction mode (FCCM), the nominal switching frequency is maintained at all times, with the inductor current going below zero (i.e. “backwards” or from the output to the input) for a portion of the switching cycle as necessary to maintain the output voltage and current. This keeps the output voltage ripple to a minimum at the cost of light-load efficiency.
4.8.4 Overvoltage protection (OVP)
The WLC1115 offers two types of overvoltage protections. The device monitors and limits VIN and VBRG. In case of a USB VIN overvoltage event detected, WLC1115 can be configured to shutdown the Type-C port completely. In case of VBRG over voltage events, the buck regulator is immediately shut down. The IC can be re-enabled after a physical disconnect and reconnect. The over-voltage fault thresholds are configurable.
4.8.5 Overcurrent protection (OCP)
The WLC1115 protects the inverter from over-current and short-circuit faults by monitoring the bridge current and continuously inspecting for over-current events using the internal CSAs that check the voltage on the current sense resistor. Similar to OVP , the OCP and SCP fault thresholds and response times are configurable as well. The IC can be re-enabled after a physical disconnect and reconnect.
4.8.6 USB-PD controller
The WLC1115 interfaces directly to Type-C USB power supplies and travel adaptors (TA). The WLC1115 manages the incoming power supply throughout operation using the D+, D-, and CC lines. The WLC1115 manages the USB-PD physical communication layer, the VCONN switches, as well as monitoring to prevent under-voltage events caused by drawing too much power from the supply. The WLC1115 offers all the necessary electrical controls to be fully compliant with revisions 3.0 and 2.0 of the USB-PD specification and includes SCP . The USB-PD physical layer consists of the power transmitter and power receiver that communicates BMC encoded data over the CC channel per the PD 3.0 standard. All communication is half-duplex. The physical layer or PHY includes collision avoidance to minimize communication errors on the channel. The WLC1115 uses the RP and RD resistors to implement connection detection and plug orientation detection. The RD resistor establishes the role of the transmitter system as a USB sink. The device supports PPS operation at all valid voltages from 3V to 22V when connected to a power adaptor. Further, the WLC1115 device supports USB-PD extended messages containing data of up to 260 bytes by implementing a chunking mechanism; messages are limited to revision 2.0 sizes unless both source and sink confirm and negotiate compatibility with longer message lengths.
Datasheet 32 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Functional overview The WLC1115 USB controller also supports battery charger emulation and detection (source and sink) for USB legacy QC 2.0/3.0 & AFC protocols.
4.8.7 MCU
The Cortex®-M0 in WLC1115 device is a 32-bit MCU, which is optimized for low-power operation with extensive clock gating. The device utilizes an interrupt controller (the NVIC block) with 32 interrupt inputs and a wakeup interrupt controller (WIC), which can wake the processor up from Deep Sleep mode. Additionally, the WLC1115 device has 128-KB Flash and 32-KB ROM for nonvolatile storage. ROM stores libraries for device drivers such as I 2C, SPI, and so on. The main wireless power firmware is stored in Flash memory to provide the flexibility to store code for all wireless power features, enable the use of configuration tables, and allow firmware upgrades to meet the latest USBPD specifications and application requirements. The device may be reset anytime by toggling the XRES pin to force a full hardware and software reset. The WLC1115 devices support external clock (EXTCLK) or INTCLK for the MCU and all internal sub-systems that require clocks. To use the internal clock, float the CLK_IN pin. To use the optional external clock, provide a single ended clock to the CLK_IN pin oscillating at 48MHz. The TCPWM block of the WLC1115 device has four timers, counters, or PWM (TCPWM) generators. These timers are used by FW to run the wireless power Tx system as required by WPC and USB compliance directives. The WLC1115 device also has a watchdog timer (WDT) that can be used by FW for various timeout events.
4.8.8 ADC
The WLC1115 device has 8-bit SAR ADCs available for general purpose analog-to-digital conversion applications within the chip and system. The ADCs are accessed from the GPIOs or directly on power supply pins through an on-chip analog mux. See the “Electrical specifications” on page 11 for detailed specifications of the ADCs.
4.8.9 Serial communications block (SCB)
The WLC1115 devices have four SCB blocks that can be configured for I2C, SPI, or UART . These blocks implement full multi-master and slave I2C interfaces capable of multi-master arbitration. I2C is compatible with the standard Philips I2C specification V3.0. These blocks operate at speeds of up to 1Mbps and have flexible buffering options to reduce interrupt overhead and latency for the CPU. The SCB blocks support 8-byte deep FIFOs for Receive and Transmit to decrease the time needed to interface by the MCU also reducing the need for clock stretching caused by the CPU not having read data on time.
4.8.10 I/O subsystem
The WLC1115 devices have 13 GPIOs but many of them have dedicated functions for 15W MP-A11 applications such as I2C comm, LED and temperature sensing in the wireless power application and cannot be repurposed. The GPIOs output states have integrated controls modes that can be enabled by FW which include: weak pull-up with strong pull-down, strong pull-up with weak pull-down, open drain with strong pull-down, open drain with strong pull-up, strong pull-up with strong pull-down, disabled, or weak pull-up with weak pull-down and offer selectable slew rates for dV/dt output control. When GPIOs are used as inputs they can be configured to support different input thresholds (CMOS or LVTTL). During POR, the GPIO blocks are forced to the disable state preventing any excess currents from flowing.
4.8.11 LDOs (VDDD and VCCD)
The WLC1115 has two integrated LDO regulators. The VDDD LDO is powered by VIN and provides 5V for the GPIOs, gate drivers, and other internal blocks. The total load on VDDD LDO must be less than 150mA including internal consumption. VDDD LDO will be externally loaded as shown in the reference schematic. For connecting any additional external load on it, contact Infineon technical support. The VDDD 5V supply is externally routed to various pins and they should all be externally shorted together. The VCCD LDO is a 1.8V LDO regulator and is powered by VDDD. Do not externally load VCCD. Both LDOs must have ceramic bypass capacitors placed from each pin to ground close to the WLC1115 device.
Datasheet 33 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Programming the WLC1115 device
5 Programming the WLC1115 device
There are two ways to program application firmware into a WLC1115 device: 1. Programming the device flash over SWD Interface 2. Application firmware update over specific interfaces (CC, I 2C) Generally, the WLC1115 devices are programmed over the SWD interface only during development or during the manufacturing process of the end-product. Once the end-product is manufactured, the WLC1115 device application firmware can be updated via the appropriate bootloader interface. Infineon strongly recommends customers to use the configuration utility to turn off the Application FW Update over CC or I2C interface in the firmware that is updated into WLC1115’s flash before mass production. This prevents unauthorized firmware from being updated over the CC interface in the field. If you desire to retain the application firmware update over CC/I 2C interfaces features post-production for on-field firmware updates, contact your local Infineon sales representative for further guidelines.
5.1 Programming the device Flash over SWD interface
The WLC1115 family of devices can be programmed using the SWD interface. Infineon provides the MiniProg4 programming kit (CY8CKIT-005 MiniProg4 Kit) which can be used to program the flash and debug firmware. The Flash is programmed by downloading the information from a hex file. As shown in Figure 12, the SWD_DAT and SWD_CLK pins are connected to the host programmer’s SWDIO (data) and SWDCLK (clock) pins respectively. During SWD programming, the device can be powered by the host programmer by connecting its VTARG (power supply to the target device) to the VDDD pins of the WLC1115 device. If the WLC1115 device is powered using an onboard power supply, it can be programmed using the “Reset Programming” option. For more details, refer the WLCXXXX programming specification. Figure 12 Connecting the programmer to WLC1115 Host Programmer WLC1115 GND 10uF0.1 uF 0.1 uF 0.1 uF 1 uF VTRAG SWDCLK SWDIO XRES GND VDDD VDDD SWD_CLK SWD_DAT XRES GND VCCD VDD
Datasheet 34 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller
Ordering information
6 Ordering information
Table 20 lists the WLC1115 ordering part numbers and applications.
6.1 Ordering code definitions
Table 20 WLC1115 ordering part numbers MPN Power Application WLC1115-68LQXQ 15W Qi v1.3.x EPP Tx WLC1115-68LQXQT Qi v1.3.x EPP Tx - Tape and reel option XXXX -- XX XX XXXWLC Grade/temperature range: Q = Extended industrial grade (–40°C to + 105°C) Number of pins in the package T: Tape and reel (Optional) Type-: 1 = Tx, 2 = Rx, 3 = Tx-Rx , 4 = Custom Wattage: 15 = 15W; Marketing code: WLC = Wireless Charging Package type: LQ = QFN Lead: X = Pb-free Product type: 1 = First-Generation product family
Datasheet 35 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Packaging 7P a c k a g i n g Table 21 Package characteristics Parameter Description Test conditions Min Typ Max Unit TJ Operating junction temperature -40 25 125 °C 14.8 °C/WTJB Package JB 4.3 Table 22 Solder reflow peak temperature Package Maximum peak temperature Maximum time within 5°C of peak temperature 68-pin QFN 260°C 30 seconds Table 23 Package moisture sensitivity level (MSL), IPC/JEDEC J-STD-2 Package MSL 68-pin QFN MSL 3
Datasheet 36 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Package diagram
8 Package diagram
Figure 13 68LD QFN (8 8) device package drawing COPLANARITY ZONE APPLIES TO THE EXPOSED HEAT SINK PIN #1 ID ON TOP WILL BE LOCATED WITHIN THE INDICATED ZONE. DIMENSION "b" APPLIES TO METALLIZED TERMINAL AND IS MEASURED N IS THE TOTAL NUMBER OF TERMINALS. ALL DIMENSIONS ARE IN MILLIMETERS. JEDEC SPECIFICATION NO. REF. : N/A. NOTES: THE OPTIONAL RADIUS ON THE OTHER END OF THE TERMINAL, THE DIMENSION "b" SHOULD NOT BE MEASURED IN THAT RADIUS AREA. ND REFERS TO THE NUMBER OF TERMINALS ON D SIDE.
0.40 BSC
0.20
8.00 BSC
5.70
0.75 MIN
0.40 K A D E b L ND N e 0.00 5.60 0.15 0.30 0.05 0.65 5.80 0.25 0.50 A3 (Option 1) 0.203 REF DIMENSIONS SYMBOL MIN. NOM. MAX. BETWEEN 0.15 AND 0.30mm FROM TERMINAL TIP. IF THE TERMINAL HAS SLUG AS WELL AS THE TERMINALS.
0.20 TYPR
5.705.60 5.80 INDEX FEATURE CAN EITHER BE AN OPTION 1 : "MOUSE BITE" OR 8. OPTION 2 : CHAMFER. A3 (Option 2) 0.152 REF 002-31802 *C
Datasheet 37 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Acronyms 9A c r o n y m s Table 24 Acronyms used in this document Acronym Description Acronym Description ACK Acknowledge POR Power-on reset ADC Analog-to-digital converter PPDE proprietary power delivery extensions Arm® Advanced RISC machine, a CPU architecture PPS Programmable power supply ASK Amplitude shift key PSM Pulse-skipping mode BPP Basic power profile PWM Pulse-width modulator BMC BiPhase mark code QFOD Q factor FOD CEP Control error packet RPP Received power packet CC Configuration channel RCP Reverse current protection CSA Current sense amplifier Rx Power receiver DCM Discontinuous-conduction mode SAR Successive approximation register EA Error amplifier SCP Short circuit protection EPP Extended power profile SPI Se rial peripheral interface EPT End power transfer SSP Signal strength packet ESD Electrostatic discharge SWD Serial wire debug, a test protocol FET Field effect transistor TCPWM Timer/counter pulse-width modulation FCCM Forced-continuous-conduction mode Tx Power transmitter FOD Foreign object detection UART Universal asynchronous receiver transmitter FO Foreign object UFP Upstream facing port FSK Frequency shift key USB Universal serial bus FW Firmware UV Undervoltage GPIO General-purpose I/O WDT Watchdog timer HBM Human body model WIC Wakeup interrupt controller HS High speed WPC Wireless power consortium I 2C Inter-integrated circuit ZCD Zero-crossing detector IC Integrated circuit IMO Internal main oscillator IPT Inductive power transfer technology LDO Linear drop out MCU Microcontroller unit NTC Negative temperature coefficient NVIC Nested vectored interrupt controller OCP Overcurrent protection Opamp Operational amplifier OTP Over temperature protection OV Overvoltage OVP Overvoltage protection PCB Printed circuit board PD Power delivery
Datasheet 38 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller Document conventions
10 Document conventions
10.1 Units of measure
°C degree Celsius Hz hertz KB 1024 bytes kHz kilohertz k kilo ohm LSB least significant bit MHz megahertz M mega-ohm µA microampere µF microfarad µH microhenry µs microsecond µV microvolt µW microwatt mA milliampere mm millimeter ms millisecond mV millivolt nA nanoampere ns nanosecond nV nanovolt ohm %p e r c e n t pF picofarad ss e c o n d Vv o l t Ww a t t
Datasheet 39 of 40 002-34241 Rev. *B 2022-04-22 Wireless charging IC (WLC) - Transmitter 15W with integrated USB Type-C PD controller
Revision history
version Date of release Description of changes *B 2022-04-22 Publish to web.
81726 Munich, Germany
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