BQ24157S Datasheet, PDF (27/45 Pages) Texas Instruments – Full USB Compliance and USB-OTG Support

Not Recommended for New Designs
www.ti.com
bq24157S
SLUSB76B – FEBRUARY 2013 – REVISED MAY 2015
Table 6. Control/Battery Voltage Register (Read or Write)
Memory Location: 02, Reset State: 0000 1010⁽¹⁾
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
NAME
V_O(REG5)
V_O(REG4)
V_O(REG3)
V_O(REG2)
V_O(REG1)
V_O(REG0)
OTG_PL
OTG_EN
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
FUNCTION
Battery Regulation Voltage: 640-mV step (default 0)
Battery Regulation Voltage: 320-mV step (default 0)
Battery Regulation Voltage: 160-mV step (default 0)
Battery Regulation Voltage: 80-mV step (default 0)
Battery Regulation Voltage: 40-mV step (default 1)
Battery Regulation Voltage: 20-mV step (default 0)
1 – OTG boost enable with high level
0 – OTG boost enable with low level (default 1); not applicable to OTG pin control of
current limit at POR in DEFAULT mode
1 – Enable OTG Pin in HOST mode
0 – Disable OTG pin in HOST mode (default 0), not applicable to OTG pin control of
current limit at POR in DEFAULT mode
(1) Charge voltage range is 3.5 to 4.44 V with the offset of 3.5 V and steps of 20 mV (default 3.54 V), using bits B2 to B7.
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
NAME
Vender2
Vender1
Vender0
PN1
PN0
Revision2
Revision1
Revision0
Table 7. Vender/Part/Revision Register (Read only)
Memory Location: 03, Reset State: 0101 000x
Read or 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)
For I2C Address 6AH:
01–N/A
10–bq24157S
11–N/A
011: Revision 1.0;
001: Revision 1.1;
100 – 111: Future Revisions
FUNCTION
Table 8. Battery Termination/Fast Charge Current Register (Read or Write)
Memory Location: 04, Reset State: 0000 0001⁽¹⁾
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
NAME
Reset
V_I(CHRG3) ⁽²⁾
V_I(CHRG2) ⁽²⁾
V_I(CHRG1) ⁽²⁾
V_I(CHRG0) ⁽²⁾
V_I(TERM2) ⁽³⁾
V_I(TERM1) ⁽³⁾
V_I(TERM0) ⁽³⁾
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
Read or Write
FUNCTION
Write:
1 – Charger in reset modes
0 – No effect, Read: always get 0
Charge current sense voltage: 27.2-mV step
Charge current sense voltage: 13.6-mV step
Charge current sense voltage: 6.8-mV step
N/A
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) Charge current sense voltage offset is 37.4 mV and default charge current is 550 mA, if 68-mΩ sensing resistor is used and
LOW_CHG = 0.
(2) See Table 13
(3) See Table 12
Copyright © 2013–2015, Texas Instruments Incorporated
Product Folder Links: bq24157S
Submit Documentation Feedback
27