BQ24153A_14 Datasheet, PDF (29/46 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support

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BIT
B2
B1
B0 (LSB)
bq24153A, bq24156A
bq24158, bq24159
SLUSAB0C – OCTOBER 2010 – REVISED JULY 2013
Table 6. Vender/Part/Revision Register (Read only)
Memory Location: 03, Reset State: 0101 000x (continued)
NAME
Revision2
Revision1
Revision0
READ/WRITE
Read Only
Read Only
Read Only
011: Revision 1.0;
001: Revision 1.1;
100-111: Future Revisions
FUNCTION
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
V_I(CHRG3) ⁽¹⁾
V_I(CHRG2) ⁽¹⁾
V_I(CHRG1) ⁽¹⁾
V_I(CHRG0) ⁽¹⁾
V_I(TERM2) ⁽²⁾
V_I(TERM1) ⁽²⁾
V_I(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 bq24153A/8; 54.4mV step – for
bq24156A/9 (default 0)
Charge current sense voltage: 13.6 mV step – for bq24153A/8; 27.2mV step – for
bq24156A/9 (default 0)
Charge current sense voltage: 6.8 mV step – for bq24153A/8; 13.6mV step – for
bq24156A/9 (default 0)
NA – for bq24153A/8; 6.8mV step – for bq24156A/9 (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) See Table 11
(2) See Table 10
• For bq24153A/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 bq24156A/9, the maximum charge current is 1.55A. If a higher value is programmed, the 1.55A or
maximum safety limit charge current is selected.
Table 8. Special Charger Voltage/Enable Pin Status Register
Memory location: 05, Reset state: 001X X100
BIT
NAME
READ/WRITE
FUNCTION
B7 (MSB)
NA
Read/Write
NA
B6
NA
Read/Write
NA
B5
LOW_CHG
Read/Write
0 – Normal charge current sense voltage at 04H,
1 – Low charge current sense voltage of 22.1mV (default 1)
B4
DPM_STATUS
Read Only
0 – DPM mode is not active,
1 – DPM mode is active
B3
CD_STATUS
Read Only
0 – CD pin at LOW level,
1 – CD pin at HIGH level
B2
VSREG2
Read/Write
Special charger voltage: 320mV step (default 1)
B1
VSREG1
Read/Write
Special charger voltage: 160mV step (default 0)
B0 (LSB)
VSREG0
Read/Write
Special charger voltage: 80mV step (default 0)
• Special charger voltage offset is 4.2V and default special charger voltage is 4.52V.
• Default charge current will be 325mA, if 68-mΩ sensing resistor is used, since default LOW_CHG=1.
Table 9. Safety Limit Register (READ/WRITE, Write only once after reset!)
Memory location: 06, Reset state: 01000000
BIT
B7 (MSB)
B6
B5
B4
NAME
V_MCHRG3 ⁽¹⁾
V_MCHRG2 ⁽¹⁾
V_MCHRG1 ⁽¹⁾
V_MCHRG0 ⁽¹⁾
READ/WRITE
Read/Write
Read/Write
Read/Write
Read/Write
FUNCTION
Maximum charge current sense voltage: 54.4 mV step (default 0) ⁽²⁾
Maximum charge current sense voltage: 27.2 mV step (default 1)
Maximum charge current sense voltage: 13.6 mV step (default 0)
Maximum charge current sense voltage: 6.8 mV step (default 0)
(1) Refer to Table 11
Copyright © 2010–2013, Texas Instruments Incorporated
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