AAT4295 SKYWORKS
Document overview
- Manufacturer or author: Provided By www.digicamel.com(free datasheet download site)
- PDF pages: 20
Technical content
Features
- Input Voltage Range: 1.8V to 5.5V
- Independent Low-Side N-Channel MOSFET Switches: ▪ AAT4295: Three Channels ▪ AAT4297: Six Channels
- User-Programmable S 2Cwire Interface
- Single GPIO Controls State of Each MOSFET
- Low Quiescent Current: 3 μA Typical
- Temperature Range: -40°C to +85°C
- No External Components Required
- Available in Pb-Free Packages ▪ AAT4295 in 8-Pin SC70JW ▪ AAT4297 in 12-Pin TSOPJW
Applications
- Cell Phones
- Multiple Low Power Switching
- Personal Communication Devices
- Portable Electronic Devices
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Pin Descriptions Pin Number Symbol FunctionAAT4295 AAT4297 1 8 VCC Input supply voltage. 2, 3 9, 10, 12 N/C No connection. 4 11 EN/SET Input control pin using S2Cwire serial interface. The device records rising edges of the clock and decodes them into eight states, which control the ON/OFF states of the MOSFETs. See Table 1 for output settings. In addition, a logic low forces the device into shutdown mode, reducing the supply current to less than 1μA. This pin should not be left fl oating. 5 1 GND Ground connection. 6 2 S1 Drain of the N-channel MOSFET for Channel 1. 7 3 S2 Drain of the N-channel MOSFET for Channel 2. 8 6 S3 Drain of the N-channel MOSFET for Channel 3. N/A 4 S5 Drain of the N-channel MOSFET for Channel 5. N/A 5 S4 Drain of the N-channel MOSFET for Channel 4. N/A 7 S6 Drain of the N-channel MOSFET for Channel 6. Pin Configuration AAT4295 AAT4297 SC70JW-8 TSOPJW-12 (Top View) (Top View) N/C N/C EN/SET GND VCC 1 GND N/C EN/SET N/C N/C VCC
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at co nditions other than the operating conditions specified is not implied. Only one Absolute Maximum Rating should be applied at any one time. 2. Mounted on an FR4 board. 3. Derated 4.4mW/°C above 25°C. 4. Derated 6.25mW/°C above 25°C. Absolute Maximum Ratings1 Symbol Description Value Units VCC to GND Power Supply to GND 6.0 V INx to GND All Input (Drain) to GND -0.3 to 6.0 V EN/SET EN/SET to GND -0.3 to 6.0 V TJ Operating Junction Temperature Range -40 to 150 °C Thermal Information2 Symbol Description Value Units JA Thermal Resistance SC70JW 225 °C/WTSOPJW 160 PD Maximum Power Dissipation SC70JW 440 3 mWTSOPJW 625 4
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 1. The AAT4295 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assu red by design, characterization, and correla- tion with statistical process controls. 2. TON is the time after latch timeout to 10% of the output voltage. See Figure 1, Timing Diagram. Electrical Characteristics1 VCC = 5.0V; TA = -40°C to +85°C, unless otherwise noted. Typical values are T A = 25°C. Symbol Description Conditions Min Typ Max Units VCC Supply Voltage Range 1.8 5.5 V IQ Quiescent Current VCC = 5V, EN/SET = VCC, IOUT = No Load, All Switches On 3.0 10 μA IQ(OFF) Off Supply Current EN/SET = 0, V CC = 5V, VOUT Open 1.0 μA IDS(OFF) Off Switch Current for Any Switch EN/SET = 0, V CC = 5V, VOUT = 0 0.1 1.0 μA TCRDS On-Resistance Temperature Coeffi cient 2800 ppm/°C TON Output Turn-On Time2 VIN = 5V, RPULLUP = 250, COUT = 0.1μF 0.6 2.7 μs EN/SET VEN(L) Enable Threshold Low V IN = 1.8V 0.3 V VEN(H) Enable Threshold High V IN = 5.5V 1.4 V TEN/SET LO EN/SET Low Time 0.5 75 μs TEN/SET_HI_MIN Minimum EN/SET High Time 50 ns TEN/SET_HI_MAX Maximum EN/SET High Time 75 μs TOFF EN/SET Off Timeout 500 μs TLAT EN/SET Latch Timeout 500 μs IEN/SET EN/SET Input Leakage -1 1 μA
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Typical Characteristics Quiescent Current vs. Input Voltage Input Voltage (V) Quiescent Current (μμA) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 85°C 25°C -40°C Quiescent Current vs. Temperature Temperature (°°C) Quiescent Current (µA) 1.0 1.5 2.0 2.5 3.0 -40 -20 0 20 40 60 80 100 VIN = 5V VIN = 3.6V Off-Supply Current vs. Temperature Temperature (°°C) Quiescent Current (µA) 0.000 0.001 0.002 0.003 0.004 0.005 0.006 -40 -20 0 20 40 60 80 100 VIN = 5V VIN = 4.2V VIN = 3.3V VIN = 1.8V RDS(ON) vs. Input Voltage (ILOAD = 20mA) Input Voltage (V) RDS(ON) (ΩΩ) 1.0 1.5 2.0 2.5 3.0 3.5 RDS1 RDS5 RDS2 RDS3 RDS4 RDS6 RDS(ON) vs. Temperature (VIN = 3.6V; ILOAD = 20mA) Temperature (°°C) RDS(ON) (Ω) 1.0 1.5 2.0 2.5 3.0 -40 -20 0 20 40 60 80 100 RDS6 RDS3 RDS4 RDS5 RDS2 RDS1 RDS(ON) vs. Temperature (VIN = 5V; ILOAD = 20mA) Temperature (°°C) RDS(ON) (Ω) 1.0 1.5 2.0 2.5 3.0 -40 -20 0 20 40 60 80 100 RDS6 RDS3 RDS4 RDS5 RDS2 RDS1
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Typical Characteristics EN/SET Timeout vs. Input Voltage Input Voltage (V) Timeout (µs) 100 125 150 175 200 225 250 TOFF TLATCH EN/SET Latch Timeout vs. Input Voltage Input Voltage (V) Latch Timeout, TLAT (µs) 100 150 200 250 300 -40°C 25°C 85°C EN/SET Off Timeout vs. Input Voltage Input Voltage (V) Off Timeout, TOFF (µs) 100 150 200 250 300 -40°C 25°C 85°C Turn-On Characteristic (IOUT1 = IOUT2 = 20mA) Time (50µs/div) EN/SET (5V/div) VOUT1 (5V/div) VOUT2 (5V/div) IOUT1 (20mA/div) Turn-On Characteristic (IOUT1 = IOUT2 = 20mA) Time (50µs/div) EN/SET (5V/div) VOUT1 (5V/div) VOUT2 (5V/div) IOUT1 (20mA/div) Turn-Off Characteristic (IOUT1 = IOUT2 = 20mA) Time (50µs/div) EN/SET (5V/div) VOUT1 (5V/div) VOUT2 (5V/div) IOUT1 (20mA/div)
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Typical Characteristics Transition of Outputs (IOUT1 = IOUT2 = 20mA) Time (50µs/div) EN/SET (5V/div) VOUT1 (5V/div) VOUT2 (5V/div) IOUT1 (20mA/div) Time (50µs/div) EN/SET (5V/div) VOUT2 (5V/div) IOUT1 (20mA/div) VOUT1 (20mV/div, AC coupled) Turn-On Transient Characteristic (IOUT1 = IOUT2 = 20mA) Time (50µs/div) EN/SET (5V/div) VOUT2 (5V/div) IOUT1 (20mA/div) VOUT1 (20mV/div, AC coupled) Turn-Off Transient Characteristic (IOUT1 = IOUT2 = 20mA) Turn-On Fall Time vs. Temperature Temperature (°°C) Time (µs) 0.0 0.2 0.4 0.6 0.8 1.0 -40 -20 0 20 40 60 80 10 0 TON (Fall Time) VIH vs. Input Voltage Input Voltage (V) VIH (V) 0.5 0.6 0.7 0.8 0.9 1.0 1.1 85°C 25°C -40°C VIL vs. Input Voltage Input Voltage (V) VIL (V) 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 85°C25°C -40°C
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Functional Description The AAT4295/97 is comprised of three or six low-side N-channel MOSFET load switches primarily targeted for general purpose applications where several load circuits need to be connected to a common ground and controlled from a single microcontroller GPIO output. When a given switch is enabled, the respective switch connects the load input (S1 to S3 for the AAT4295 and S1 to S6 for the AAT4297) to ground through the N-channel MOSFET. Each low-side N-channel MOSFET transistor has a typical on resistance (R DS(ON)) of 2 when operating from a 3.6V supply. Both the AAT4295 and AAT4297 have been designed to operate with an input voltage range of 1.8V to 5.5V, making them ideal for battery-powered applica- tions. These devices may be used for load switching applica- tions such as RGB LED fashion lighting, display or keypad backlight LEDs, miscellaneous indicator LED lamps, as well as audio and RF circuits or any other system with a power requirement that does not exceed the thermal dis- sipation limits of the load switch and device package. Each switch input may be represented by the following circuit (Figure 1) and simplified equivalent model (Figure 2). The state of each switch is controlled via the EN/SET pin using Skyworks' S 2Cwire interface. To enable a respec- tive switch, a series of clocked pulses should be applied to the EN/SET pin. The number of pulses clocked will determine the switch configuration based on the truth table given in Table 1. At the end of the serial pulse data Functional Block Diagram Control Logic S2Cwire InterfaceEN/SET VCC GND S6* S5* S4* * AAT4297 only
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Control S1 to S6 Control S1 to S6 Figure 1: Switch Input Circuit. Figure 2: Simplified Equivalent Model. set, the EN/SET set pin should be held high to latch the clocked data and enable the desired switch configura- tion. When the device is enabled with the EN/SET held to a logic high state, the quiescent current consumption will typically increase to 3 μA at normal ambient room temperatures. If output sequencing of the switches is not necessary, all of the switches may be turned on simultaneously on the first rising edge of the EN/SET pin by simply pulling the EN/SET to a logic high level. The default configuration for one clock pulse is to enable all switches to the “on” state. However, if output sequenc- ing is desired, a series of pulses on the EN/SET pin will set the outputs to the desired state (refer to Table 2 for output settings). For LED lighting applications, the EN/ SET line may be clocked at rates up to 1MHz, allowing the user to not only control brightness, but (in the case of color RGB LEDs) color as well. Output Settings The ON/OFF state of the MOSFET switches is controlled by the EN/SET serial data input. An internal control counter is clocked on the rising edge of the EN/SET pin, and is decoded into the 8 possible states of the MOSFET for the AAT4295 (see Table 1) and 64 possible states for the AAT4297 (see Table 2). The counter rolls over after 8 clocks and the table repeats. Clock OUT3 OUT2 OUT1 1 o no no n 2 on on off 3 on off on 4 on off off 5 off on on 6 off on off 7 off off on 8 off off off Table 1: AAT4295 EN/SET Settings. The S2Cwire interface relies on the number of rising edges of the EN/SET pin to load the internal register to a desired count. S 2Cwire control latches data after the EN/SET pin has been held high for the preset latch enable time (TLAT). The interface records rising edges of the EN/SET pin and decodes them into one of 8 states for the AAT4295 or to one of 64 states for the AAT4297, as indicated in Tables 1 and 2. The counter can be clocked at speeds up to 1MHz, so different switch combinations may be clocked in lighting applications without any visible perception to the user. Alternatively, the EN/SET clock pulses may be entered one at a time for the desired setting. The first rising edge of EN/SET enables the IC and turns all the switches ON. Once the final clock cycle is received, the EN/SET pin is held high to maintain the device setting. The device is disabled 500μs (T OFF) after the EN/SET pin transitions to a logic low state (see Figure 3).
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Clock AAT4297 Clock AAT4297 OUT6 OUT5 OUT4 AAT4295 (only) OUT6 OUT5 OUT4 OUT3 OUT2 OUT1OUT3 OUT2 OUT1 1 on on on on on on 33 off on on on on on 2 on on on on on off 34 off on on on on off 3 on on on on off on 35 off on on on off on 4 on on on on off off 36 off on on on off off 5 on on on off on on 37 off on on off on on 6 on on on off on off 38 off on on off on off 7 on on on off off on 39 off on on off off on 8 on on on off off off 40 off on on off off off 9 on on off on on on 41 off on off on on on 10 on on off on on off 42 off on off on on off 11 on on off on off on 43 off on off on off on 12 on on off on off off 44 off on off on off off 13 on on off off on on 45 off on off off on on 14 on on off off on off 46 off on off off on off 15 on on off off off on 47 off on off off off on 16 on on off off off off 48 off on off off off off 17 on off on on on on 49 off off on on on on 18 on off on on on off 50 off off on on on off 19 on off on on off on 51 off off on on off on 20 on off on on off off 52 off off on on off off 21 on off on off on on 53 off off on off on on 22 on off on off on off 54 off off on off on off 23 on off on off off on 55 off off on off off on 24 on off on off off off 56 off off on off off off 25 on off off on on on 57 off off off on on on 26 on off off on on off 58 off off off on on off 27 on off off on off on 59 off off off on off on 28 on off off on off off 60 off off off on off off 29 on off off off on on 61 off off off off on on 30 on off off off on off 62 off off off off on off 31 on off off off off on 63 off off off off off on 32 on off off off off off 64 off off off off off off Table 2: Output Settings. TH TL TLAT TON TO TOFF Sn EN/SET Figure 3: EN/SET Timing Diagram.
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013
Application Information
External Component Selection The AAT4295 and AAT4297 have been designed so that no external parts are required for the device to function as a general purpose three- or six-position low-side switch. For some applications, the addition of bypass capacitors or pull-up or pull-down resistors may be desired to improve overall system performance. For lighting applications, such as controlling RGB LEDs, keypad or display backlight LEDs, or photo flash LEDs, no bypass capacitors are necessary. For other general purpose load switching applications which may use some or all of the outputs to switch light load current levels to application circuits, good engineering practice would dictate the use of small bypass capacitors placed on the V CC input and each switch connection that is used to conduct current from the load to ground. The use of small ceramic capacitors between the input and output nodes will aid in reducing line and load transient response effects when the load switch on a given output is turned on or off. Input Capacitor Typically, a 0.1μF capacitor is recommended for C IN in most applications to provide input line transient response immunity to small changes in the input supply. A C IN capacitor is not required for basic operation. If used, CIN should be located as close to the device V IN pin as prac- tically possible. There is no specific capacitor equivalent series resis- tance (ESR) requirement for C IN; however, for higher current operation, ceramic capacitors are recommended for C IN due to their inherent capability over tantalum or aluminum electrolytic capacitors to withstand input cur- rent surges from low impedance sources, such as batter- ies in portable devices. Output Capacitor For typical applications where the AAT4295/97 is used for LED lighting control, no output capacitors are required because the end load is not sensitive to device turn-on or turn-off transient effects. For improved load transient response in systems using the AAT4295/97 for load switching, the addition of a small output capacitor placed between the output pins and ground can have a beneficial effect. A 0.1μF ceram- ic capacitor is suggested as a reasonable value for an output capacitor. The output capacitor has no specific capacitor type or ESR requirement. If desired, C OUT may be increased to a value greater than 0.1 μF without limit to accommodate any load transient condition without adversely affecting the device turn-on slew rate time. Thermal Considerations The AAT4295 and AAT4297 are designed to sink a con- tinuous load current to ground when a respective switch is enabled via the S2Cwire control. The limiting charac- teristic for maximum safe operating load current through a given switch or set of switches is package power dis- sipation. In order to obtain high operating currents, careful device layout and circuit operating conditions must be taken into account. At any given ambient tem- perature (T A), the maximum package power dissipation can be determined by the following equation: PD(MAX) = TJ(MAX) - TA θJA Constants for the AAT4295 are maximum junction tem- perature, T J(MAX) = 125°C, and package thermal resis- tance, JA = 225°C/W. Worst case conditions are calcu- lated at the maximum operating temperature, where T A = 85°C. Typical conditions are calculated under normal ambient conditions, where T A = 25°C. At 25°C ambient, the AAT4295 is capable of dissipating 444.4mW of power and the AAT4297 is capable of dissipating 625mW of power. At 85°C ambient, the AAT4295 is capable of dis- sipating 177.8mW of power and the AAT4297 can dissi- pate 250mW. The power dissipation of any given MOSFET switch is limited by its respective on resistance (R DS). The RDS of any given MOSFET switch is controlled by the applied gate voltage to the switch, which is set by the applied V CC supply and the ambient operating temperature. Switch RDS for the AAT4295 or AAT4297 may be esti- mated by using the R DS versus Temperature curve in the Typical Characteristics section of this datasheet. The maximum current of any given switch can be calculated for a given operating temperature and V CC supply level. The corresponding R DS is determined by use of the R DS vs. Temperature curve for the given V CC.
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Given the maximum package power dissipation and oper- ating temperature, the maximum current through any switch or combination of switches can be calculated using the following formula: ISWITCH(MAX) = PD(MAX) RDS Example: If all the switches on an AAT4295 were closed simultaneously, each switch could handle up to 271mA of current at 25°C for a total of 813mA. For the same set of operating conditions at 25°C, the AAT4297 can handle up to 208mA per switch for a total of 1.25A for all six switches. If the load current for a desired application exceeds the recommended current at a given tempera- ture, two or more switches may be operated in parallel as long as the overall power dissipation of the device package is not exceeded. If different current levels are passed through different switches on a given device, then one should total up the power dissipation for each switch and assure the sum of the power dissipation does not exceed the power rating for the package. Application Circuits Today, many mobile phones and similar products contain RGB LED fashion lighting, LCD display and sub-display, as well as keypad backlighting and photo flash LEDs. Due to the nature of common anode RGB LEDs, the AAT4295 and AAT4297 make ideal low-cost lighting con- trol solutions. In general, most types of LEDs can be controlled via a low-side MOSFET switch and current limiting ballast resistor. The following application circuits (Figures 4 through 7) show voltage boosting charge pumps to power RGB and flash LEDs. However, if a volt- age or current source is already available in a given product design, the charge pump circuit block may be replaced with the existing power source solution. Since both the AAT4295 and AAT4297 require only one GPIO line from the system microcontroller to enable and dis- able all the switches via the EN/SET input, these solu- tions can provide a simple way to add lighting solutions to existing design platforms. Driving LED Loads When driving LEDs with a voltage source, series ballast resistors must be used to limit the LED forward current. The LED current will vary with supply voltage and LED forward voltage. Most types of LEDs have forward volt- age specifications ranging from 2.0V to 5.0V. When con- trolling an LED of any type with a low-side MOSFET switch, the necessary series ballast resistor value can be calculated from the following formula: RBALLAST = - R DS(ON) (VIN - VF) ILED Where: RBALLAST is the value of resistor to be placed in series with the LED (). VIN is the input supply voltage to the device (V). VF is the forward voltage of the LED (V). RDS(ON) is the resistance of the switch when it is turned on (). ILED is the desired operating current of the LED (A).
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Evaluation Board Description AAT4295 Evaluation Board The AAT4295 evaluation board demonstrates the opera- tion of the AAT4295 SmartSwitch™. This section describes the evaluation board and its accompanying user inter- face. For demonstration purposes, an AAT3110 voltage doubling charge pump has been incorporated to provide a regulated voltage source to power the system load, which is an RGB LED. A schematic of the complete circuit is shown in Figure 8. The evaluation board layer details are provided in Figures 9 and 10. Table 3 provides the component list for the AAT4295 evaluation board. VDD1 GP52 GP43 GP34 GP2 5GP1 6GP0 7VSS 8 PIC12F675 U3 1μF R13 R12 R11 12 34 5
0 SW5
0 SW4
0 SW3
10μF 12 34 5
0 SW2
0 SW1
10μF 1μF 100K OnOff VCC DC- RGB 2.7V - 5V VIN1 N/C2 N/C3 EN4 GND 5OUT1 6OUT2 7OUT3 8 AAT4295 U2 68 130 D6 D5 D4 RGB 2 RGB Figure 8: AAT4295 Evaluation Board Schematic.
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Figure 9: Top Layer (not to scale). Figure 10: Bottom Layer (not to scale). Component Part# Description Manufacturer U1 AAT4295IJS Single RGB Controller; SC70JW-8 package Skyworks U2 AAT3110IJS Regulated Charge Pump, SC70JW-8 package Skyworks U3 PIC12F675 8-bit CMOS, FLASH-based μC; 8-pin PDIP package Microchip SW1 – SW5 PTS645TL50 Switch Tact, SPST, 5mm ITT Industries R1, R4 Chip Resistor 130 Ω, 1%, 1/4W; 0805 Vishay R2, R5 Chip Resistor 68 Ω, 1%, 1/4W; 0805 Vishay R3, R6 Chip Resistor 70 Ω, 1%, 1/4W; 0805 Vishay R7 Chip Resistor 100k Ω, 5%, 1/4W; 0402 Vishay R8 Chip Resistor 100k Ω, 5%, 1/4W; 0805 Vishay R9 – R12 Chip Resistor 1k Ω, 5%, 1/4W; 1206 Vishay C3, C4 GRM319R61A106KE19 10 μF, 10V, X5R, 10%, 1206 Murata C2 GRM185R60J105KE21 1 μF, 6.3V, X7R, 10%, 0603 Murata C1 GRM319R71A105KA01 1 μF, 10V, X7R, 10%, 1206 Murata RGB1, RGB2 1615 SMD LED Series Common Anode RGB Lasemtech J1 PRPN401PAEN Conn. Header, 2mm zip Sullins Electronics Table 3: AAT4295 Evaluation Board Component Listing.
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 AAT4297 Evaluation Board The AAT4297 evaluation board demonstrates the opera- tion of the AAT4297 SmartSwitch™. This section describes the evaluation board and its accompanying user inter- face. For demonstration purposes, an AAT3110 voltage doubling charge pump has been incorporated to provide a regulated voltage source to power the system load, which is an RGB LED. A schematic of the complete circuit is shown in Figure 11. The evaluation board layer details are provided in Figures 12 and 13. Table 4 provides the component list for the AAT4297 evaluation board. VDD1 GP52 GP43 GP34 GP2 5GP1 6GP0 7VSS 8 PIC12F675U3 1μF R10 R11 12 34 5 10μF 12 34 5 10μF 1μF 100K OnOff VCC DC- RG B RG B 2.7V - 5V OUT45 GND1 OUT36 VIN 8 OUT12 OUT23 OUT6 7 OUT54 N/C 9N/C 10EN/SET 11N/C 12 AAT4297U2 Figure 11: AAT4297 Evaluation Board Schematic.
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Figure 12: Top Layer (not to scale). Figure 13: Bottom Layer (not to scale). Component Part# Description Manufacturer U1 AAT4297ITP Single RGB Controller; TSOPJW-12 package Skyworks U2 AAT3110IJS Regulated Charge Pump, SC70JW-8 package Skyworks U3 PIC12F675 8-bit CMOS, FLASH-based μC; 8-pin PDIP package Microchip SW1 – SW5 PTS645TL50 Switch Tact, SPST, 5mm ITT Industries R1, R4 Chip Resistor 130 Ω, 1%, 1/4W; 0805 Vishay R2, R5 Chip Resistor 68 Ω, 1%, 1/4W; 0805 Vishay R3, R6 Chip Resistor 70 Ω, 1%, 1/4W; 0805 Vishay R7 Chip Resistor 100k Ω, 5%, 1/4W; 0402 Vishay R8 Chip Resistor 100k Ω, 5%, 1/4W; 0805 Vishay R9 – R12 Chip Resistor 1k Ω, 5%, 1/4W; 1206 Vishay C3, C4 GRM319R61A106KE19 10 μF, 10V, X5R, 10%, 1206 Murata C2 GRM185R60J105KE21 1 μF, 6.3V, X7R, 10%, 0603 Murata C1 GRM319R71A105KA01 1 μF, 10V, X7R, 10%, 1206 Murata RGB1, RGB2 1615 SMD LED Series Common Anode RGB Lasemtech J1 PRPN401PAEN Conn. Header, 2mm zip Sullins Electronics Table 4: AAT4297 Evaluation Board Component Listing.
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 1. XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD.
Ordering Information
Package Marking 1 Part Number (Tape and Reel)2 SC70JW-8 RBXYY AAT4295IJS-T1 TSOPJW-12 RCXYY AAT4297ITP-T1 Skyworks Green™ products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green™ , document number SQ04-0074.
Package Information
0.225 ± 0.075 0.45 ± 0.10 0.05 ± 0.05 2.10 ± 0.30 2.00 ± 0.20 7° ± 3° 4° ± 4° 0.15 ± 0.05
1.10 MAX
0.100 2.20 ± 0.20 0.048REF 0.50 BSC 0.50 BSC 0.50 BSC All dimensions in millimeters.
Single/Dual RGB Controller Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202309B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 11, 2013 Copyright © 2012, 2013 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility fo r errors or omissions in these materials or the information contained herein. Sky- works may change its documentation, products, services, specifi cations or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for confl icts, incompatibilities, or other diffi culties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided here- under, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, IN- CLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or en- vironmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifi cations as a result of design defects, errors, or operation of products outside of pub- lished parameters or design specifi cations. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifi cations or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identifi cation purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. TSOPJW-12 0.20 + 0.10 - 0.05 0.055 ± 0.045 0.45 ± 0.15 7° NOM 4° ± 4° 3.00 ± 0.10 2.40 ± 0.10 2.85 ± 0.20 0.15 ± 0.05 0.9625 ± 0.0375 1.00 + 0.10 - 0.065
0.04 REF
0.010 2.75 ± 0.25 All dimensions in millimeters.