BQ24150 Datasheet, PDF (29/39 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support

bq24150
bq24151
www.ti.com ...................................................................................................................................................................................................... SLUS824 – JUNE 2008
REGISTER DESCRIPTION
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B1 (LSB)
Table 5. Status/Control Register (READ/WRITE)
Memory Location: 00, Reset State: x1xx 0xxx
NAME
TMR_RST/OTG
EN_STAT
STAT2
STAT1
BOOST
FAULT_3
FAULT_2
FAULT_1
READ/WRITE
Read/Write
Read/Write
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
FUNCTION
Write: TMR_RST function, write "1" to reset the safety timer (auto clear)
Read: OTG pin status, 0-OTG pin at Low level, 1-OTG pin at High level
0-Disable STAT pin function, 1-Enable STAT pin function (default 1)
00-Ready, 01-Charge in progress, 10-Charge done, 11-Fault
1-Boost mode, 0-Not in boost mode
Charge mode: 000-Normal, 001-VBUS OVP, 010-Sleep mode, 011-Poor input
source or VBUS < UVLO, 100-Battery OVP, 101-Thermal shutdown, 110-Timer
fault, 111-No battery
Boost mode: 000-Normal, 001-VBUS OVP, 010-Over load, 011-Battery voltage
is too low, 100-Battery OVP, 101-Thermal shutdown, 110-Timer fault, 111-NA
Table 6. Control Register (READ/WRITE)
Memory Location: 01, Reset State: 0011 0000 (30H)
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B1 (LSB)
NAME
Iin_Limit_2
Iin_Limit_1
V_{(LOWV_2)} ⁽¹⁾
VLOWV_1 ⁽¹⁾
TE
CE
HZ_MODE
OPA_MODE
READ/WRITE
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
FUNCTION
00-USB host with 100-mA current limit, 01-USB host with 500-mA current limit,
10-USB host/charger with 800-mA current limit, 11-No input current limit
(default 00)
200mV weak battery voltage threshold (default 1)
100mV weak battery voltage threshold (default 1)
1-Enable charge current termination, 0-Disable charge current termination
(default 0)
1-Charger is disabled, 0-Charger enabled (default 0)
1-High impedance mode, 0-Not high impedance mode (default 0)
1-Boost mode, 0-Charger mode (default 0)
(1) The range of the weak battery voltage threshold (V_(LOWV)) is 3.4 V to 3.7 V with an offset of 3.4 V and step of 100 mV (default of 3.7 V).
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: 640 mV (default 0)
Battery Regulation Voltage: 320 mV (default 0)
Battery Regulation Voltage: 160 mV (default 0)
Battery Regulation Voltage: 80 mV (default 0)
Battery Regulation Voltage: 40 mV (default 1)
Battery Regulation Voltage: 20 mV (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 3.54 V).
BIT
B7 (MSB)
B6
B5
B4
Table 8. Vender/Part/Revision Register (Read only)
Memory Location: 03, Reset State: 0100 x001
NAME
Vender2
Vender1
Vender0
PN1
READ/WRITE
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)
Copyright © 2008, Texas Instruments Incorporated
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