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BQ24153 Просмотр технического описания (PDF) - Texas Instruments

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BQ24153 Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support TI
Texas Instruments TI
BQ24153 Datasheet PDF : 41 Pages
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bq24153
bq24156, bq24158
SLUSA27 – MARCH 2010
• Charge voltage range is 3.5 V to 4.44 V with the offset of 3.5 V and steps of 20 mV (default 3.54 V), using
bits B2-B7.
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
NAME
Vender2
Vender1
Vender0
PN1
PN0
Revision2
Revision1
Revision0
Table 6. Vender/Part/Revision Register (Read only)
Memory Location: 03, Reset State: 0101 000x
READ/WRITE
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Vender Code: bit 2 (default 0)
Vender Code: bit 1 (default 1)
Vender Code: bit 0 (default 0)
FUNCTION
For I2C Address 6BH: 00--bq24151, 01–bq24150; 10–bq24153; 11–NA.
For I2C Address 6AH: 00--bq24156, 01–NA, 10–bq24158, 11–NA.
011: Revision 1.0;
001: Revision 1.1;
100-111: Future Revisions
Table 7. Battery Termination/Fast Charge Current Register (Read/Write)
Memory Location: 04, Reset State: 0000 0001
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
NAME
Reset
VI(CHRG3) (1)
VI(CHRG2) (1)
VI(CHRG1) (1)
VI(CHRG0) (1)
VI(TERM2) (2)
VI(TERM1) (2)
VI(TERM0) (2)
READ/WRITE
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
FUNCTION
Write: 1-Charger in reset mode, 0-No effect, Read: always get "0"
Charge current sense voltage: 27.2 mV step – for bq24153/8; 54.4mV step – for
bq24156 (default 0)
Charge current sense voltage: 13.6 mV step – for bq24153/8; 27.2mV step – for
bq24156 (default 0)
Charge current sense voltage: 6.8 mV step – for bq24153/8; 13.6mV step – for
bq24156 (default 0)
NA – for bq24153/8; 6.8mV step – for bq24156 (default 0)
Termination current sense voltage: 13.6 mV step (default 0)
Termination current sense voltage: 6.8 mV step (default 0)
Termination current sense voltage: 3.4 mV step (default 1)
(1) Refer to Table 11
(2) Refer to Table 10
• For bq24153/8, charge current sense voltage offset is 37.4mV and default charge current is 550mA, if 68-mΩ
sensing resistor is used and LOW_CHG=0.
• For bq24156, the maximum charge current is 1.55A. If a higher value is programmed, the 1.55A or maximum
safety limit charge current is selected.
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
Table 8. Special Charger Voltage/Enable Pin Status Register
Memory location: 05, Reset state: 001X X100
NAME
NA
NA
LOW_CHG
DPM_STATUS
CD_STATUS
VSREG2
VSREG1
VSREG0
READ/WRITE
Read/Write
Read/Write
Read/Write
Read Only
Read Only
Read/Write
Read/Write
Read/Write
FUNCTION
NA
NA
0 – Normal charge current sense voltage at 04H,
1 – Low charge current sense voltage of 22.1mV (default 1)
0 – DPM mode is not active,
1 – DPM mode is active
0 – CD pin at LOW level,
1 – CD pin at HIGH level
Special charger voltage: 320mV step (default 1)
Special charger voltage: 160mV step (default 0)
Special charger voltage: 80mV step (default 0)
Copyright © 2010, Texas Instruments Incorporated
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