BQ24180 Datasheet, PDF (29/39 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and Accessory Power Connection

bq24180
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SLUSA02 A – FEBRUARY 2010 – REVISED FEBRUARY 2010
Vender/Part/Revision Register (READ only) – Memory location: 03, Reset state: 0100 0000
BIT
NAME
Read/Write FUNCTION
B7(MSB)
Vender2
Read only Vender Code: bit 2 (default 0)
B6
Vender1
Read only Vender Code: bit 1 (default 1)
B5
Vender0
Read only Vender Code: bit 0 (default 0)
B4
PN1
Read only _{For I2C Address 6BH: 00 – bq24180}
B3
PN0
Read only
B2
B1
B0(LSB)
Revision2
Revision1
Revision0
Read only
Read only
Read only
000: Revision 1.0; 001: Revision 1.1
010-111: Future Revisions
BIT
B7(MSB)
B6
B5
B4
B3
B2
B1
B0(LSB)
Battery Termination/Fast Charge Current Register (READ/WRITE)
Memory location: 04, Reset state: 1010 1011
NAME
Read/Write FUNCTION
Reset
Write only Write: 1-Charger in reset mode, 0-No effect
Read: always get "1"
V_ICHRG3
V_ICHRG2
V_ICHRG1
V_ICHRG0
V_ITERM2
V_ITERM1
V_ITERM0
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Charge current sense voltage: 54.4mV— (default 0)
Charge current sense voltage: 27.2mV—(default 1)
Charge current sense voltage: 13.6mV— (default 0)
Charge current sense voltage: 6.8mV (default 1)
Termination current sense voltage: 6.8mV (default 0)
Termination current sense voltage: 3.4mV (default 1)
Termination current sense voltage: 1.7mV (default 1)
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• Charge current sense voltage offset is 37.4mV and default charge current is 1050mA, if 68mΩ sense resistor
is used.
• Termination threshold voltage offset is 1.7mV and default termination current is 100mA if a 68mΩ sense
resistor is used.
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V_IN-DPM Voltage/ Safety Timer Register – Memory location: 05, Reset state: XX0X X111
BIT
NAME
Read/Write FUNCTION
B7(MSB)
NA
Read/Write NA
B6
NA
Read/Write NA
B5
LOW_CHG
Read/Write 1 – Low charge current sense voltage of 23.8mV,
0 – Normal charge current sense voltage at 04H (default 0)
B4
DPM_STATUS Read Only 1 – V_IN-DPM mode is active,
0 – V_IN-DPM mode is not active
B3
CD_STATUS Read Only 1 – CD high, Charger disabled,
0 – CD low, Charger enabled
B2
V_INDPM2
Read/Write V_IN-DPM voltage: 320 mV (default 1)
B1
V_INDPM1
Read/Write V_IN-DPM voltage: 160 mV (default 1)
B0(LSB)
V_INDPM0
Read/Write V_IN-DPM voltage: 80 mV (default 1)
• V_IN-DPM voltage offset is 4.15V and default V_IN-DPM threshold is 4.71V.
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