TWL2213CAPFBR | DigiCamel IC Datasheet

Online Datasheet

Read TWL2213CAPFBR online.

TWL2213CA TI1 | Alldatasheet

Document overview

Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
PDF pages: 31

Technical content

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 /C0068Integrated, Single-Chip Solution for Battery Charge Control and Power Supply Management /C0068Linear Charger for Single-Cell Li-Ion or Li-Polymer Packs /C0068Integrated Control Over Precharge, Constant-Current and Constant-Voltage Charging Phases /C0068Programmable Charging Current /C0068Programmable Charge Termination by Minimum Current and Time /C0068Battery Temperature Sensing /C0068Pack Wake Up and Damaged Cell Detect Functions /C0068Safety Charge Timers During Precharge and Constant-Current Charging /C0068Six Programmable Low-Dropout Linear Voltage Regulators /C0068System Over- and Under-Voltage Shut Down /C0068Power On/Power Off and Reset Control Logic /C0068Three Individually Selectable LED Backlight Drivers /C0068Vibrator and Ringer Drivers /C0068Internal 8-Bit Analog-to-Digital Converter (ADC) with Auxiliary Inputs /C0068I2C Control Interface /C006848-Terminal Plastic TQFP(PFB)

description

The TWL2213 is a single-chip battery and power management solution for wireless handsets, pagers, personal data assistants (PDAs), and other battery-powered devices. For battery charging, the device incorporates a linear charger for single-cell Li-Ion and lithium polymer battery packs. Prior to charging, the TWL2213 initiates battery pack wake up and damaged cell detect functions. For deeply discharged batteries, the device performs precharge conditioning by trickle-charge to user-defined current settings. Once acceptable pack voltage is detected, TWL2213 applies a constant-current fast charge at a current level that is determined by a combination of an external sense resistor and user-programmable sense voltage. When the battery reaches the selected charge regulation voltage, TWL2213 maintains regulation until charging is terminated by a minimum current or a timer. During the entire charge cycle, TWL2213 monitors temperature by external thermistor and suspends charging if temperature exceeds a programmed range. Three programmable safety timers limit the precharge, constant-current, and total charge times. For power management, the TWL2213 includes six low-dropout linear voltage regulators. One regulator is driven from the device’s power on/off logic and incorporates a microcontroller reset function. Five low noise regulators include individually programmable output voltage and enable-disable. The TWL2213 can be powered from a battery or AC adapter. When an adapter is present, it supplies power to the device, allowing the system to function without battery. TWL2213 also includes individually selectable drivers for three separate backlight LEDs, a ringer, and a vibrator motor. An internal 8-bit analog-to-digital converter (ADC) is accessible from external pins. The system microcontroller accesses all TWL2213 programming and status via the I 2C serial interface. The TWL2213 device is packaged in the Texas Instruments 48-terminal plastic thin quad flatpack (TQFP) package (PFB). Copyright  2001, Texas Instruments IncorporatedPRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TA DEVICE NAME PACKAGE REGULATOR 1 REGULATOR 6 –40°C to 85°C TWL2213CAPFBR TQFP 2.8 V 3 V TS ADCIN1 ADCIN2 CONT V REG5 VDD4 VREG4 BGRF GND2 V REG3 VDD3 VREG2 PWRKOUT PWRKIN PSH DATA CLK CD2 DGND VIOUT VDD5 RINGOUT RINGIN GND3 567 8 VG2 VBAT 35 34 33 32 3136 30 IRQ CT GND RPRE DD2 GND IL2 CD1 DD1 AGND 28 27 2629 9 10 11 12 REF ISENSE VG IL1 IL0 SEL PFB PACKAGE (TOP VIEW) V V XRST DDV VG3VREG6 VREG1 VCHG DISSIPATION RATING TABLE PACKAGE TA = 25°C POWER RATING OPERATING FACTOR ABOVE 25 °C TA = 70°C POWER RATING TA = 85°C POWER RATING PFB 1962 mW 15.7 mW/C 1256 mW 1020 mW

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 3POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 block diagram VCHG VG VG2 ISENSE V DD VG3 VBAT ADCIN1 IRQ Battery Charger ControlGND REF CT VDD1 XRST CD1 VDD2 AGND VDD3 VREG2 VREG3 VDD4 VREG4 REG5 VREG5 GND2 Vibrator Driver Ring Driver LED Driver DGND I2C GND DATA CLK CD2 PWRKIN PSH PWRKOUT BGRF REG4 REG3 REG2 REG6 Reset Control REG1 Power On/Off Control CONT VREG6 VREG1 TS ADCIN2 RPRE GND3 IL2 IL1 IL0 RINGOUT RINGIN SEL VIOUT DD5V Reference System

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

I/O DESCRIPTIONNAME PFB NO. I/O DESCRIPTION ADCIN1 23 I ADC input ADCIN2 22 I ADC input AGND 8 I/O Regulator 1 ground BGRF 17 I/O Band gap output bypass capacitance CD1 9 I/O XRST output delay adjustment capacitance CD2 42 I/O Regulator 1 off delay adjustment capacitance CLK 41 I I2C bus serial clock input CONT 21 I Regulator 6 is always on after power up except when CONT = H; regulator 6 is enabled through I2C interface. CT 35 I/O External oscillator timing cap DATA 40 I/O I2C bus serial address/data input output; this is a bidirectional terminal DGND 43 I/O Digital ground GND 12, 34 I/O Ground GND2 16 I/O Ground for VREG2 , VREG3 , VREG4 , and VREG5 GND3 48 I/O Vibrator, LED, ringer ground IL0 1 O 160-mA LED driver output IL1 2 O 20-mA LED driver output IL2 3 O 10-mA LED driver output IRQ 36 O Interrupt signal for external controller regarding to charger START/STOP action ISENSE 31 I Current sense input for charger function PSH 39 I Power hold signal from controller PWRKIN 38 I Power-up start PWRKOUT 37 O Power-up signal for CPU REF 25 O Voltage reference during charge cycle, 3 V, IO = 3 mA RINGIN 47 I/O Input for ring driver RINGOUT 46 O Ring driver output RPRE 33 I/O Precharge current sense resistor SEL 4 I Input for vibrator output voltage change TS 24 I Battery temperature sense input voltage VBAT 26 I/O Battery voltage sense input or output for precharge, wakeup VCHG 32 I DC voltage input for charger VDD 28 I Device dc supply feedback for charger function VDD1 5 I Device dc supply input and regulator 1 input VDD2 11 I Input to regulator 6 VDD3 14 I Input for regulators 2 and 3 VDD4 19 I Input for regulators 4 and 5 VDD5 45 I Input for vibrator, PN diode connection of ringer VG 30 O Gate control of an external P-FET for charger regulation VG2 29 O Gate control of an external P-FET for battery blockage VG3 27 O Gate control of an external P-FET for charging action VIOUT 44 I/O Vibrator output

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 5POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions (Continued) TERMINAL I/O DESCRIPTIONNAME PFB NO. I/O DESCRIPTION VREG1 6 O Regulator 1 output VREG2 13 O Regulator 2 output VREG3 15 O Regulator 3 output VREG4 18 O Regulator 4 output VREG5 20 O Regulator 5 output VREG6 10 O Regulator 6 output XRST 7 O Reset output detailed description power on/off control The power on/off control circuit controls the timing of the delayed power on reset. There are two different reset conditions: the manual power condition and the adapter power-on condition. Under the manual-powered condition, if the power key is pressed, the PWRKIN signal goes high and VREG1 (regulator 1 output) is enabled. After VREG1 reaches 90% of its nominal output voltage, the TWL2213 starts the delayed reset process by charging the reset timing capacitor (CD1). When the voltage of CD1 reaches 1.2 V, the XRST signal is released by TWL2213 and is pulled high by an external pull-up resistor. This completes the reset process, and the external controller operates in normal condition. While the PWRKIN signal remains high, the power-on condition remains active. Before the PWRKIN signal goes low, the external controller must drive PSH high to retain power; otherwise, the TWL2213 starts the delay power-off process by charging the CD2 timing capacitor. After the voltage of CD2 reaches 1.2 V and no valid PSH signal is received, the device is powered off. Under the adapter power-on condition, no battery is attached to the device. During the power-off state, after the adapter is attached, the output of V REG1 (regulator 1 output) is automatically enabled. After VREG1 reaches 90% of its nominal output voltage, the TWL2213 starts the delayed reset process by charging the reset timing capacitor (CD1). When the voltage of CD1 reaches 1.2 V, the XRST signal is released by TWL2213 and is pulled high by an external pull-up resistor. This completes the reset process, and the external controller operates in normal condition. The external controller must drive PSH high to retain power; otherwise, the TWL2213 starts the delay power-off process by charging the CD2 timing capacitor. After the voltage of CD2 reaches 1.2 V and no valid PSH signal is received, the device is powered off. During the power-on state, the device generates an output signal (PWRKOUT) with the inverted polarity to PWRKIN. The external controller can use the PWRKOUT signal to detect power key action.

6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

0.9 VOUT

Figure 1. Power-On/-Off Sequence

Figure 2. Power-On/-Off Sequence the other is to monitor the VREG1 level. reaches 90% of its nominal output voltage level again, the delayed reset process starts over.

8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

0.9 VOUTHysteresis

must be high within max CD2 delay. Figure 3. VREG1 Monitoring of Reset Control with an equivalent serial resistance (ESR) less than 6 Ω. ESR in the range of 1Ω –6 Ω. The output voltage ranges from 2.5 V to 3 V. capacitor in the range of 4.7 µF –10 µF with an ESR less than 6Ω .

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 9POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 detailed description (continued) LED driver The TWL2213 device provides the capability of driving three LEDs. These drivers, enabled by I2C, can drive currents of 160 mA, 20 mA, and 10 mA individually with a maximum voltage drop of 0.8 V. ringer driver The TWL2213 device provides the capability of driving a ringer. It is enabled by I2C and uses an N-channel FET with a maximum resistance of 3Ω . I2C This block provides I2C interface to the external devices. battery charger control This block provides the necessary signals to control the external circuits that perform the charger function. The charging activities include battery pack wake up, precharge, fast charge, and battery temperature monitoring. This block also provides two ADC inputs for general measurement purpose. The input voltage level is from 0 to 2 volts. This block also includes an oscillator generator circuit, which generates the clocks for the device. The nominal frequency of the main clock is 500 kHz. It requires an external capacitor of 470 pF. reference system This block provides voltage reference and bias current for the internal circuitry. absolute maximum ratings over operating free-air temperature (unless otherwise noted)† † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. recommended operating conditions MIN MAX UNIT VCHG 4.5 6 V VDD1 – VDD5 3.3 4.3 V High-level logic input, PWRKIN, SEL, CONT 0.7VDD1 VDD1 V Low-level logic input, PWRKIN, SEL, CONT GND 0.3VDD1 V High-level logic input, PSH 0.7VREG1 VREG1 V Low-level logic input, PSH GND 0.3VREG1 V Precharge current 100 mA

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics

regulator 1 (CO = 4.7 µF with ESR = 2 Ω ) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VREG1 Output voltage IO = IMAX 2.68 2.8 2.91 V IO Output current VDD1 = 3.8 V 150 mA Ios Short circuit VDD1 = 3.8 V 550 mA Load regulation IO = 1 mA to IMAX , VDD1 = 3.8 V 80 mV Line regulation VDD1 = 3.3 V to 4.3 V, IO = IMAX 20 mV Dropout voltage IO = IMAX 100 300 mV kVIO Ripple rejection f = 120 Hz, VDD1 = 3.8 V 40 dB I(Standby) Standby current IO = 1.5 mA (regulator 1 and internal bias circuitry are active) 120 µA regulator 6 (CO = 4.7 µF with ESR = 2 Ω ) This 100 mA LDO can be enabled with serial interface I2C or by the CONT terminal. The output range is from 2.5 V to 3 V. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V Output voltage CONT = Low 2.88 3 3.12 V VREG6 Output voltage CONT = High (see Note 1 and function register 4)0.96Vp Vp 1.04Vp V IO Output current 100 mA Short circuit 330 mA Load regulation IO = 1 mA to IMAX , VDD2 = 3.8 V 70 mV VS Line regulation VDD2 = 3.3 V to 4.3 V, IO = IMAX 20 mV Dropout voltage IO = IMAX 100 300 mV KVIO Ripple rejection f = 120 Hz 40 dB ton Turnon time See Note 2 150 µs toff Turnoff time See Note 3 2 5 ms I(Quiescent) Quiescent current IO = 1.5 mA 30 µA NOTES: 1. I 2C-programmable. V(p) is the programmed voltage. Refer to function registers 2 and 3 for programming information. 2. Output enable to output voltage = 0.9 × nominal value 3. Output disable to output voltage = 0.5 V

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 11POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics (continued) regulators 2, 3, 4, and 5 (CO = 4.7 µF with ESR = 2 Ω ) Regulators 2, 3, 4, and 5 provide programmable output. The output range, 2.3 V to 3 V, can be programmed in 100-mV steps. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VO Output voltage See Note 1 0.96Vp Vp 1.04Vp V Regulator 2 80 I Output current Regulator 3 80 mAIO Output current Regulator 4 120 mA Regulator 5 150 Regulator 2 300 Short circuit current Regulator 3 300 mAShort-circuit current Regulator 4 400 mA Regulator 5 500 Regulator 2, IO = 1 mA to IMAX 70 Load regulation Regulator 4, IO = 1 mA to IMAX 50 mVLoad regulation Regulators 3 and 5, IO = 1 mA to IMAX 50 mV Line regulation VI = 3.3 V to 4.3 V 20 mV V(dropout) Dropout voltage IO = IMAX 300 mV KVIO Ripple rejection f = 10 kHz 40 dB N Output noise f = 10 Hz to 100 kHz, IO = IMAX , VI = 3.3 V 45 µVRMS ton Turnon time See Note 2 80 µs toff Turnoff time No load, See Note 3 1 5 ms I(Quiescent) Quiescent current IO = 1 mA 150 µA regulator 1 voltage DET PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V Voltage at XRST (see Note 4) VREG1 ≤ VTH –VHY 0 0.3 VVO Voltage at XRST (see Note 4) VREG1 ≥ VTH VREG1 V VHY Hysteresis Voltage 80 100 120 mV Time delay voltage at CD1 1.15 1.2 1.25 V Time delay current at CD1 0.7 1 1.3 µA NOTE 4: V TH is 90% of the nominal VREG1 . LED driver PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Output current at IL0 VIL0 = 0.8 V 160 mA Output current at IL1 VIL1 = 0.8 V 20 mA Output current at IL2 VIL2 = 0.8 V 10 mA Ilkg Leakage current Off 1 µA

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics (continued) vibrator driver PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VO Output voltage SEL = H 2.88 3 3.12 V IO Output current SEL = H 85 mA VO Output voltage SEL = L 1.17 1.3 1.43 V IO Output current SEL = L 140 mA Vs Line regulation VDD5 = 3.3 V to 4.3 V, IOUT = IMAX 20 mV Load regulation IOUT = 1 mA to IMAX , VDD5 = 3.8 V 80 mV I(Quiescent) Quiescent current IOUT = 0 80 µA IL Current limit VO = 0, VDD5 = 3.3 V to 4.3 V 490 mA ring driver PARAMETER TEST CONDITIONS MIN TYP MAX UNIT On resistance Iout = 100 mA at 25°C 3 Ω Ilkg Leakage current Off 1 µΑ battery charger control PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V System V V(BREG) = 4.1 V 4.059 4.1 4.141 VVDD1 System VDD V(BREG) = 4.2 V (see function control register)4.158 4.2 4.242 V VREF Required 0.1 µF capacitor ESR of 2 Ω , load = 1 mA maximum 2.91 3 3.09 V V(current sense) Current sense voltageSet maximum current, 100 to 200, in 20-mV steps with I2C. See CSV register. Vsense mV VG VGH IGH = –0 mA VCHG V VG VGL IGL = –0 mA 0 V IG IGH VG 2 V 149 178.5 197 AIG IGL VG = 2 V 214 218 226 µA VG2 VG2H IG2H = 0 mA VBAT VVG2 VG2L IG2L = 0 mA 0 V IG2 IG2H VG2 = VBAT – 0.3 V –2.8 –4.03 –4.65 mAIG2 IG2L VG2 = 0.3 V 3.2 5.02 5.70 mA VG3 VG3H IG3H = –0 mA VDD1 VVG3 VG3L IG3L = 0 mA 0 V IG3 IG3H VG3 = VDD1 – 0.3 V –2.7 –3.87 –4.65 mAIG3 IG3L VG3 = 0.3 V 2.95 4.43 5.3 mA

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 13POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics (continued) battery charger control (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VBAT regulation (CV) V(BREG) = 4.1 V (See Note 5) 4.059 4.1 4.141 VVBAT regulation (CV) VBREG = 4.2 V 4.158 4.2 4.242 V Low voltage cutoff 1.9 High voltage cutoff 4.45 VBAT Fast charge voltage 3.2 VVBAT Precharge voltage (see Note 6) 1.9 2.05 2.2 V Pack wake-up voltage 4.214 4.30 4.386 Icc Operating current 20 mA NOTES: 5. V (BREG) is the regulated battery voltage programmed by setting bit1 of CSV register. 6. Precharge current set by Ipre/C0043VRPC RPC /C003245 where V RPC /C00431.2 V/C003410% ADC specification PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Resolution Output impedance <100 kΩ 8 bit Integral nonlinearity Confirm monotonous (see Note 7) –1 1 LSB Low-level input ADC output = 00H 0 0.1 V High-level input ADC output = FFH 1.9 2 2.1 V Input capacitance 3 pF ADC CLK 450 500 550 kHz ADC conversion time, tc From the start of SETUP 16 CLK Power-up time From the ADEN up selection 10 µs NOTE 7: LSB /C00432V 255 /C00437.8 mV logic level output PARAMETER TEST CONDITION MIN MAX UNIT VOH of terminals PWRKOUT, IRQ IOH = –2 mA 0.8VREG1 VREG1 V VOL of terminals PWRKOUT, IRQ IOL = 2 mA GND 0.22VREG1 V VOL of DATA IOL = 2 mA GND 0.22VREG1 V VOH of XRST IOH = –2 mA (open drain with 100-kΩ internal pullup) VREG1 V VOL of XRST IOL = 2 mA (open drain 100-kΩ internal pullup) GND 0.22VREG1 V

14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

CLK: I2C bus serial clock. This input synchronizes the control data transfer from and to the microprocessor. clock pulse. The DATA line is at a stable low state during the high period of the acknowledge related clock pulse. the slave TWL2213 device must leave the data line high to enable the master to generate the stop condition. Figure 4. Bit Transfer on the I2C Bus

16 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Figure 9. I2C-Bus Timing Diagram

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 POST OFFICE BOX 655303 DALLAS, TEXAS 75265• 17 register map charger REGISTER ADDRESS (HEX) (MSB) D6 D5 D4 D3 D2 D1 D0 (LSB) PTR: Precharge timer register 10h (R/W) 0 = Disable 1 = Enable 00000 = 0 minutes /C0076 11111 = 136 minutes in 4-minute steps Don ’t careregister Default 0 0 0 0 0 0 CCTR: CC charge timer register 11h (R/W) 0 = Disable 1 = Enable 00000 = 0 minutes /C0076 11111 = 273 minutes in 8-minute steps Don ’t careregister Default 0 0 0 0 0 0 TCTR: Total charge timer (CC+CV ) register 12h (R/W) 0000 = 0 hours /C0076 1111 = 15 hours in 1-hour steps Don ’t care(CC+CV) register Default 1 1 1 1 VBOTRH+: Battery over temperature register at High+ 13h (R/W) 00h = 0 V /C0076 FFh = 2 V High+ Default 00h = 0 V VBOTRH –: Battery over temperature register at High 14h (R/W) 00h = 0 V /C0076 FFh = 2 V High– Default 00h = 0 V VBOTRL: Battery over temperature register at low 15h (R/W) 00h = 0 V /C0076 FFh = 2 V tem erature register at low Default 00h = 0 V CSV: Charge current sensing voltage and termination current ratio 16h (R/W) Sensing voltage 000 = 100 mV /C0076 101 = 200 mV in 20-mV steps Termination current ratio 000 = 10% /C0076 100 = 50% in 10% steps 0 = 4.1 V 1 = 4.2 V Don ’t care termination current ratio Default 0 0 0 0 0 0 0 ADBV: Battery voltage 17h (R) VABV = 2 V × 2.5 × Value/256 ADBT: Battery temperature voltage 18h (R) VADBAT = 2 V × Value/256 ADCIN1: Voltage 19h (R) VADCIN1 = 2 V × Value/256 ADCIN2: Voltage 1Ah (R) VADCIN2 = 2 V × Value/256

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

18 POST OFFICE BOX 655303 DALLAS, TEXAS 75265•

charger (continued) REGISTER ADDRESS (HEX) (MSB) D6 D5 D4 D3 D2 D1 D0 (LSB) FCR1 : Function control 1Bh (R/W) CHGSTR 0 = 1 = Charger start See Note 8 ADC status 0 = Disable 1 = Enable See Notes 8 and 9 ADC function 0 = Single 1 = Periodically See Notes 8 and 9 ADBV 0 = Disable 1 = Enable See Notes 8 and 10 VTS 0 = Disable 1 = Enable See Notes 8 and 11 ADCIN1 0 = Disable 1 = Enable See Notes 8 and 11 ADCIN2 0 = Disable 1 = Enable See Notes 8 and 11 IRQ 0 = IRQ is L 1 = IRQ is H Default 0 0 0 0 0 0 0 0 SR: STATUS register 1Ch (R) VEXT 1 = VCCHG in range BATERR 1 = Battery error VBOT 1 = Battery overvoltage CTERM 1 = Charge current goes below termination out NOCHG 1 = A charge condition, reset CHGSTR to 0. See Note 12 PCHG 1 = Precharge mode CCTO 1 = CC charge timeout TCTO 1 = Total charge time (CC+CV) out NOTES: 8. After TWL2213 has finished charging, these values are set to 0. 9. During CHGSTR H, ADC enables and periodically keeps functioning. 10. During charging mode, ADVB is enabled automatically. 11. Charging mode is not necessary to set enable for function. 12. External microprocessor must set CHGSTR bit to 0 when NOCHG = 1 regulator, LED, VIBRATOR REGISTER ADDRESS (HEX) (MSB) D6 D5 D4 D3 D2 D1 D0 (LSB) REG2 REG3 FCR2: Function register 2 20h (R/W) 0 = Disable 1 = Enable 000 = 3 V /C0076 111 = 2.3 V in 100-mV steps 0 = Disable 1 = Enable 000 = 3 V /C0076 111 = 2.3 V in 100-mV steps Default 0 0 0 0 0 0 0 0 REG4 REG5 FCR3: Function register 3 21h (R/W) 0 = Disable 1 = Enable 000 = 3 V /C0076 101 = 2.5 V in 100-mV steps 0 = Disable 1 = Enable 000 = 3 V /C0076 101 = 2.5 V in 100-mV steps Default 0 0 0 0 0 0 0 0 REG6 FCR4: Function register 4 22h (R/W) 0 = Disable 1 = Enable See Note 13 000 = 3 V /C0076 101 = 2.5 V in 100-mV steps Don ’t care Default 0 0 0 0 Vibrator Ringer IL2 IL1 IL0 FCR5: Function register 5 (R/W) 0 = Disable 1 = Enable 0 = Disable 1 = Enable 0 = Disable 1 = Enable 0 = Disable 1 = Enable 0 = Disable 1 = Enable Don ’t care Default 0 0 0 0 0 NOTE 13: CONT = H REG6 is dependent on D7 to enable, CONT = L REG6 is independent of D7, always on after power up

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 19POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

APPLICATION INFORMATION

EXT_CONTROLLER 100K 10K R10 10K C14 .001uF C19 .1uF C18 .1uF C16 4.7uF VREG1 C3 .1uF Buzzer 100K DC Input 4.5V to 6.0V D S 4 G ZXM64P02X R_SENSE 0.2 1.2k 470pF Vibrator 4.7uF RT1 3.74K RT2 6.19K Battery PackNTC 1uF C15 .1uF Q2:1 SI9934DY Q2:2 SI9934DY .1uF C17 4.7uF .1uF C12C11 4.7uF .1uF C10C9 4.7uF .1uF C8C7 4.7uF C13 .01uF 4.7uF –t° V or GND DD To V or GND DD To V or GND DD To Figure 10. Typical Application Circuit

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

20 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

device power supply control (VDD1 ) The TWL2213 device receives device power by regulating the VCHG input to 4.1 V or 4.2 V, whenever VCHG is available; otherwise, the device uses the VBAT input directly as device dc supply. The regulated voltage from VCHG is programmable through the I2C interface. BG Control Logic Decode V DD VDD VG VG2 VG3 TWL2213 VCHG RS R1: Fixed R2: Programmable VBAT V DD1 BG: Band Gap Voltage Figure 11. Device Power Supply TWL2213 device sets R2 value according to the programmed voltage level (4.1 V or 4.2 V). 30%, 40%, or 50% of the maximum charging current at the CC mode.

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 21POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Mode VCHG < 4.5 V or VCHG > 6.5 V 4.5 V < VCHG < 6.5 V Standby XRST = Low or CHGSTR = Low XRST = High and CHGSTR = High Wake Up Precharge Fast-Charge CC Mode Fast-Charge CV Mode Charge Complete Power-Up V bat < 3.2 V Vbat > 3.2 V Vbat > 4.1 V / 4.2 V ICHG < Iterminate or CV Time-Out ICHG > Iterminate and not CV Time-Out Vbat < 4.1 V or 4.2 V Vbat < 3.2 V Vbat > 3.2 V Vbat < 2.0 V or Vbat > 4.45 V Vbat > 4.3 V Time-Out or Vbat > 4.45 V CC Time-Out or Vbat > 4.45 V Terminate Charge Charge Suspended Temperature Out of Range Temperature In Range Temperature Out of Range Temperature In Range Temperature Out of Range Vbat > 4.45 V Temperature In Range Temperature Out of Range Figure 12. Charger State Diagram

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

22 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

control register— FCR1 (1BH) BIT NAME DESCRIPTION 7 CHGSTR Set this bit to 1 to start the charger operation. This bit is cleared if the charger is terminated. (Refer to status register table below for terminated conditions)

6 ADC

Set this bit to 1 to enable ADC operation, 0 to stop.

5 ADC

Set this bit to 1 to have ADC operate continuously. Set to 0 to have ADC to operate one cycle only. 4 ADBV Set this bit to 1 to enable the VBAT input channel to ADC. 0: disable. 3 VTS Set this bit to 1 to enable the VTS input channel to ADC. 0: disable. 2 ADCIN1 Set this bit to 1 to enable the ADCIN1 input channel. 1 ADCIN2 Set this bit to 1 to enable the ADCIN2 input channel. 0 IRQ Status of IRQ pin (refer to IRQ operation section). ADC has four input channels (ADBV, VTS, ADCIN1, ADCIN2). Each channel can be enabled or disabled individually. The selected channel must be enabled before ADC FUNCTION and ADC ENABLE bits are enabled, the channel is included in the ADC operation. IRQ control/status TWL2213 uses the IRQ signal to inform the external controller about the exception condition of the VCHG input and the charger status. Bit0 reflects the state of the IRQ signal. IRQ occurs in the following five conditions: 1. VCHG returns to operating range from non_operating range. 2. VCHG goes out of range from operating range. 3. Battery error— occurs only during the charging cycle. 4. Battery temperature out of range— occurs only during the charging cycle. The charger is suspended temporarily. IRQ is cleared when the temperature returns to normal and the charger resumes automatically. 5. Charge complete. The controller must clear the IRQ signal by writing 0 to Bit0 in the interrupt service routine, except in the VBOT condition. The controller may miss the next interrupt if it fails to write the 0. In VBOT condition, TWL2213 clears the IRQ when the condition goes away. status register description— SR (1CH) SR shows the status of the charger. The external controller reads the SR to track the state of the charging condition.

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 23POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 BIT NAME DESCRIPTION 7 VEXT When Vext = 1 the VCHG input is in the operating range. Otherwise the VCHG is out of range. 6 BATERR This bit is set to 1 indicating battery error. Four cases cause battery error: pre-charge timeout, constant-current mode timeout, VBAT < 2.9 V, or VBAT > 4.45 V. 5 VBOT During the charging cycle, if the battery temperature exceeds or falls below the nominal range, this sets to 1. The charger is suspended temporarily. VBOT is cleared when the temperature returns to nominal range and the charger function resumes automatically. 4 CTERM The charger is terminated normally because the charging current is below the preset termination current value. 3 NOCHG No charge condition. This condition is detected only during the wake_up state of the charging function. After the 8-second wake up period expires, if VBAT is above 4.3 V, the NOCHG flag is set. The cause of this is a missing or completely charged battery. The TWL2213 does not deactivate the charger by setting CHGSTR = 0. The external processor must turn off the CHGSTR by setting it to 0. 2 PCHG Set to 1 to indicate the charger is in pre-charge state. 1 CCTO Set to 1 to indicate the charging time has exceeded the time limit allowed during CC-mode. This is a fatal error. TWL2213 clears CHGSTR bit, sets the BATERR flag, and makes IRQ go high to interrupt the external controller. 0 TCTO Set to 1 to indicate the charging time has exceeded the overall time limit allowed during CV-mode. This is treated as normal termination of the charger function. TWL2213 clears the CHGSTR bit and sets IRQ to 1 to interrupt the external controller.

24 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Figure 13. Charger State Diagram

to prevent further discharging. This phase of the charging cycle provides wake-up capability for the battery pack with a pack-protector device. Figure 14. Battery Pack Wake Up

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

26 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Figure 15. Precharge Functional Diagram 100 mV to 200 mV, in 20-mV steps. The CC mode charge time is limited by the CCTR timer. (4.1 V or 4.2 V). The CV mode charging is limited by the TCTR timer. Figure 16. Fast Charge Functional Diagram

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 27POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 During the CV mode, the charge cycle is terminated when the charging current is under the programmed terminated level or when the total charge timer (TCTR) times out. The terminated current level can be programmed to 10%, 20%, 30%, 40%, or 50% of the charging current at CC mode. temperature monitoring The TWL2213 device monitors the battery temperature throughout the charge cycle. The input for ADC reference voltage is generated by a negative temperature coefficient (NTC) thermistor. The TWL2213 device compares the ADC input reference voltage to the programmed threshold voltages to determine if charging is allowed. Three required thresholds are: /C0068VBOTRH+ Voltage for over-temperature cutoff; charging is suspended. /C0068VBORTH – Voltage to resume charging function for over-temperature cutoff. /C0068VBORTL Voltage for low-temperature cutoff; charging is suspended. Enable Disabled Enabled Disabled Enabled Charge Condition 2 V VBOTRL VBOTRH – VBOTRH+ 0 V Ts (V) Figure 17. Temperature Monitoring the charge cycle, the TS pin of the IC must be tied to the GND to avoid an arror signal.

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

28 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

The TWL2213 device provides three timers for maximal time allowed for charging. The time is programmable through I2C interface. TIMER RANGE STEP COMMENT Precharge timer (PTR) 0–136 min 4 min During the precharge cycle, if the timer expires before the precharging activity is complete, a BATT_ERR flag is set in the status register, and the charge is terminated. CC charge timer (CCTR) 0–274 min 8 min During the CC mode cycle, if the timer expires before the CC activity is complete, a BATT_ERR flag is set in the status register, and the charge is terminated. Total charge timer (TCTR 0–15 hr 1 hr Total charge time is defined as the total charge time of CC mode and CV mode. TCTR time-out occurs only in the CV mode. If the timer expires before, the charge is complete.

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001 29POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA PFB (S-PQFP-G48) PLASTIC QUAD FLATPACK 4073176/B 10/96 Gage Plane 0,13 NOM 0,25 0,45 0,75 Seating Plane 0,05 MIN 0,17 0,27 SQ 7,20 6,80 5,50 TYP SQ8,80 9,20 1,05 0,95 1,20 MAX 0,08 0,50 M0,08 0°–/C02577° NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Falls within JEDEC MS-026

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL SLVS280 – MARCH 2001

30 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. Customers are responsible for their applications using TI components. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, license, warranty or endorsement thereof. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations and notices. Representation or reproduction of this information with alteration voids all warranties provided for an associated TI product or service, is an unfair and deceptive business practice, and TI is not responsible nor liable for any such use. Resale of TI’s products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service, is an unfair and deceptive business practice, and TI is not responsible nor liable for any such use. Also see: Standard Terms and Conditions of Sale for Semiconductor Products. www.ti.com/sc/docs/stdterms.htm Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright  2001, Texas Instruments Incorporated

Product Information

TWL2213CAPFBR specifications and overview.

Summary

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL

Description

POWER SUPPLY MANAGEMENT IC AND Li-Ion BATTERY CHARGE CONTROL

Source title TWL2213CAPFBR Datasheet(PDF) - Texas Instruments

Related Parts

More parts from the same family.

Browse manufacturer