BQ24153 Datasheet, PDF (28/40 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support

bq24153
bq24156, bq24158
SLUSA27 – MARCH 2010
REGISTER DESCRIPTION
www.ti.com
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
Table 3. 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, (for bq24153/8 only) 0-OTG pin at Low level, 1-OTG pin at High
level
SLRST pin status (for bq2156 only), 0-SLRST pin at LOW level, 1-SLRST 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, for bq24153/8/9 only;
NA–for bq24156.
Charge mode: 000-Normal, 001-VBUS OVP, 010-Sleep mode, 011-Bad Adaptor or
V_BUS<V_UVLO,
100-Output OVP, 101-Thermal shutdown, 110-Timer fault, 111-No battery
Boost mode (for bq24153/8 only): 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 4. Control Register (Read/Write)
Memory Location: 01, Reset State: 0011 0000
BIT
B7 (MSB)
B6
B5
B4
B3
B2
B1
B0 (LSB)
NAME
Iin_Limit_2
Iin_Limit_1
V_{(LOWV_2)} ⁽¹⁾
V_{(LOWV_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
for bq24153/8, default 01 for bq24156)
Weak battery voltage threshold: 200mV step (default 1)
Weak battery voltage threshold: 100mV step (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), for bq24153/8 only; NA–for bq24156.
(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 steps of 100 mV (default 3.7 V,
using bits B4-B5).
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
Table 5. Control/Battery Voltage Register (Read/Write)
Memory Location: 02, Reset State: 0000 1010
READ/WRITE
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/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-Active at High level, 0-Active at Low level (default 1), for bq24153/8 only; NA–for
bq24156.
1-Enable OTG Pin, 0-Disable OTG pin (default 0), for bq24153/8 only; NA–for
bq24156.
28
Submit Documentation Feedback
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): bq24153 bq24156 bq24158