BQ24195 Datasheet, PDF (14/41 Pages) Texas Instruments – I2C Controlled 2.5A / 4.5A Single Cell USB/Adapter Charger With 5.1V at 1A / 5.1V at 2.1A Synchronous Boost Operation

bq24195
bq24195L
SLUSB97 – OCTOBER 2012
I²C Registers
Address: 6BH. REG00-07 support Read and Write. REG08-0A are read only.
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Input Source Control Register REG00 (default 00110000, or 30)
BIT
DESCRIPTION
Bit 7 EN_HIZ
0 – Disable, 1 – Enable
Default: Disable (0)
Input Voltage Limit
Bit 6 VINDPM[3]
Bit 5 VINDPM[2]
640mV
320mV
Offset 3.88V, Range: 3.88V-5.08V
Default: 4.36V (0110)
Bit 4 VINDPM[1] 160mV
Bit 3 VINDPM[0] 80mV
Input Current Limit (Actual input current limit is the lower of I²C and ILIM)
Bit 2
Bit 1
Bit 0
IINLIM[2]
IINLIM[1]
IINLIM[0]
000 – 100mA, 001 – 150mA, 010 – 500mA,
011 – 900mA, 100 – 1.2A, 101 – 1.5A,
110 – 2A, 111 – 3A
Default SDP: 100mA (000)(OTG pin=0) or 500mA (010)
(OTG pin=1)
Default DCP/CDP: 1.5A (101)
Power-On Configuration Register REG01 (default 00011011, or 1B)
BIT
DESCRIPTION
Bit 7 Register Reset
Bit 6 I²C Watchdog
Timer Reset
0 – Keep current register setting,
1 – Reset to default
0 – Normal ; 1 – Reset
Charger Configuration
Bit 5 CHG_CONFIG[1] 00 – Charge Disable, 01 – Charge Battery,
Bit 4 CHG_CONFIG[0] ^{10/11 – OTG}
Minimum System Voltage Limit
Bit 3 SYS_MIN[2]
0.4V
Bit 2 SYS_MIN[1]
0.2V
Bit 1 SYS_MIN[0]
0.1V
Bit 0 Reserved
1 - Reserved
NOTE
Default: Keep current register setting (0)
Back to 0 after register reset
Default: Normal (0)
Back to 0 after timer reset
Default: Charge Battery (01)
Offset: 3.0V, Range 3.0V-3.7V
Default: 3.5V (101)
Charge Current Control Register REG02 (default 01100000, or 60)
BIT
DESCRIPTION
Fast Charge Current Limit
Bit 7 ICHG[5]
2048mA
Bit 6 ICHG[4]
1024mA
Bit 5 ICHG[3]
512mA
Bit 4 ICHG[2]
256mA
Bit 3 ICHG[1]
128mA
Bit 2 ICHG[0]
64mA
Bit 1 Reserved
0 - Reserved
Bit 0 FORCE_20PCT
0 – ICHG as REG02[7:2] programmed
1 – ICHG as 20% of REG02[7:2] programmed
NOTE
Offset: 512mA
Range: 512-4544mA (bq24195)
Range: 512-2496mA (bq24195L)
Default: 2048mA (011000)
Default: ICHG as REG02[7:2] programmed (0)
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