Datasheet
bq24190, bq24192
bq24192I, bq24193
SLUSAW5A –JANUARY 2012–REVISED OCTOBER 2012
www.ti.com
Pre-Charge/Termination Current Control Register REG 03 (default 00010001, or 11)
BIT DESCRIPTION NOTE
Pre-Charge Current Limit
Bit 7 IPRECHG[3] 1024mA Offset: 128mA,
Range:
Bit 6 IPRECHG[2] 512mA
bq24190, bq24192, bq24193: 128mA – 2048mA
Bit 5 IPRECHG[1] 256mA
bq24192I: 128mA – 640mA(0100)
Bit 4 IPRECHG[0] 128mA
Default: 256mA (0001)
Termination Current Limit
Bit 3 ITERM[3] 1024mA Offset: 128mA
Range: 128mA – 2048mA
Bit 2 ITERM[2] 512mA
Default: 256mA (0001)
Bit 1 ITERM[1] 256mA
Bit 0 ITERM[0] 128mA
Charge Voltage Control Register REG04 (bq24190, bq241192, bq241193 default: 10110010, or B2; bq24192I default 10011010, or
9A)
BIT DESCRIPTION NOTE
Charge Voltage Limit
Bit 7 VREG[5] 512mV Offset: 3.504V
Range: 3.504V – 4.400V (111000)
Bit 6 VREG[4] 256mV
Default:
Bit 5 VREG[3] 128mV
bq24190, bq24192, bq24193: 4.208V (101100)
Bit 4 VREG[2] 64mV
bq24192I: 4.112V (100110)
Bit 3 VREG[1] 32mV
Bit 2 VREG[0] 16mV
Battery Precharge to Fast Charge Threshold
Bit 1 BATLOWV 0 – 2.8V, 1 – 3.0V Default: 3.0V (1)
Battery Recharge Threshold (below battery regulation voltage)
Bit 0 VRECHG 0 – 100mV, 1 – 300mV Default: 100mV (0)
Charge Termination/Timer Control Register REG05 (default 10011010, or 9A)
BIT DESCRIPTION NOTE
Charging Termination Enable
Bit 7 EN_TERM 0 – Disable, 1 – Enable Default: Enable termination (1)
Termination Indicator Threshold
Bit 6 TERM_STAT 0 – Match ITERM, Default Match ITERM (0)
1 – STAT pin high before actual termination
when charge current below 800 mA
I2C Watchdog Timer Setting
Bit 5 WATCHDOG[1] 00 – Disable timer, 01 – 40s, 10 – 80s, 11 – Default: 40s (01)
160s
Bit 4 WATCHDOG[0]
Charging Safety Timer Enable
Bit 3 EN_TIMER 0 – Disable, 1 – Enable Default: Enable (1)
Fast Charge Timer Setting
Bit 2 CHG_TIMER[1] 00 – 5 hrs, 01 – 8 hrs, 10 – 12 hrs, 11 – 20 Default: 8hours (01)
hrs (See Charging Safety Timer for details)
Bit 1 CHG_TIMER[0]
JEITA Low Temperature Current Setting
Bit 0 JEITA_ISET 0 – 50%, 1 – 20% Percentage w.r.t ICHG REG02[7:2]
(0°C-10°C) Default: 50% (0)
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Product Folder Links: bq24190 bq24192 bq24192I bq24193