BQ24152 Datasheet, PDF (29/38 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support

bq24152
www.ti.com ...................................................................................................................................................................................................... SLUS847 – JUNE 2008
BIT
B1 (LSB)
Table 6. Control Register (Read/Write)
Memory Location: 01, Reset State: 0011 0000 (30H) (continued)
NAME
OPA_MODE
READ/WRITE
FUNCTION
Read/Write 1-Boost mode, 0-Charger mode (default 0)
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B1 (LSB)
Table 7. Control/Battery Voltage Register (Read/Write)
Memory Location: 02, Reset State: 0000 1010 (0AH)
NAME
V_O(REG5)
V_O(REG4)
V_O(REG3)
V_O(REG2)
V_O(REG1)
V_O(REG0)
OTG_PL
OTG_EN
READ/WRITE
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
FUNCTION
Battery regulation voltage: 640mV (default 0)
Battery regulation voltage: 320mV (default 0)
Battery regulation voltage: 160mV (default 0)
Battery regulation voltage: 80mV (default 0)
Battery regulation voltage: 40mV (default 1)
Battery regulation voltage: 20mV (default 0)
1-Active at High level, 0-Active at Low level (default 1)
1-Enable OTG Pin, 0-Disable OTG pin (default 0)
Charge voltage range is 3.5 V to 4.44 V with the offset of 3.5 V and step of 20 mV (default is 3.54 V).
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B1 (LSB)
Table 8. Vender/Part/Revision Register (Read only)
Memory Location: 03, Reset State: 0100 x001
NAME
Vender2
Vender1
Vender0
PN1
PN0
Revision2
Revision1
Revision0
READ/WRITE
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
FUNCTION
Vender Code: bit 2 (default 0)
Vender Code: bit 1 (default 1)
Vender Code: bit 0 (default 0)
Part Number Code: bit 1 (default 0)
Part Number Code: bit 0 (default 0 for bq24151, default 1 for bq24152)
000: Revision 1.0;
001: Revision 1.1;
010: Revision 1.2;
011-111: Future Revisions
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B1 (LSB)
Table 9. Battery Termination/Fast Charge Current Register (Read/Write)
Memory Location: 04, Reset State: 1000 1001 (89H)
NAME
Reset
V_I(CHRG2)
V_I(CHRG1)
V_I(CHRG0)
NA
V_I(TERM2)
V_I(TERM1)
V_I(TERM0)
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 "1"
Charge current sense voltage: 27.2mV (default 0)
Charge current sense voltage: 13.6mV(default 0)
Charge current sense voltage: 6.8mV (default 0)
NA
Termination current sense voltage: 13.6mV (default 0)
Termination current sense voltage: 6.8mV (default 0)
Termination current sense voltage: 3.4mV (default 1)
Default charge current is 55 0mA and default termination current is 100 mA, if a 68-mΩ sensing resistor is used.
Both the termination current range and charge current range are depending on the sensing resistor R_(SNS)). The
termination current step (I_{O(TERM_STEP)}) is calculated using Equation 2:
I_{O(TERM_STEP)}
=
V_I(TERM0)
R_(SNS)
(2)
Table 10 shows the termination current settings with two sensing resistors.
Copyright © 2008, Texas Instruments Incorporated
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