BQ24196_17 Datasheet, PDF (32/50 Pages) Texas Instruments – I2C Controlled 2.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG

bq24196
SLUSB98A – OCTOBER 2012 – REVISED DECEMBER 2014
8.5.1.9 System Status Register REG08
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Figure 33. REG08 System Status Register Format
7
6
5
VBUS_STAT[1] VBUS_STAT[0] CHRG_STAT[1]
R
R
R
LEGEND: R = Read only; -n = value after reset
4
CHRG_STAT[0]
R
3
DPM_STAT
R
2
PG_STAT
R
1
THERM_STAT
R
0
VSYS_STAT
R
Table 15. REG08 System Status Register Description
BIT
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
FIELD
VBUS_STAT[1]
VBUS_STAT[0]
CHRG_STAT[1]
CHRG_STAT[0]
DPM_STAT
PG_STAT
THERM_STAT
VSYS_STAT
TYPE
R
R
R
R
R
R
R
R
DESCRIPTION
00 – Unknown (no input, or DPDM detection incomplete), 01 – USB host, 10 – Adapter
port, 11 – OTG
00 – Not Charging, 01 – Pre-charge (<V_BATLOWV), 10 – Fast Charging, 11 – Charge
Termination Done
0 – Not DPM, 1 – VINDPM or IINDPM
0 – Not Power Good, 1 – Power Good
0 – Normal, 1 – In Thermal Regulation
0 – Not in VSYSMIN regulation (BAT > VSYSMIN), 1 – In VSYSMIN regulation (BAT <
VSYSMIN)
8.5.1.10 Fault Register REG09
Figure 34. REG09 Fault Register Format
7
6
5
WATCHDOG_ BOOST_ CHRG_FAULT[1]
FAULT
FAULT
R
R
R
LEGEND: R = Read only; -n = value after reset
4
CHRG_FAULT[0]
R
3
BAT_FAULT
R
2
NTC_FAULT[2]
R
1
NTC_FAULT[1]
R
0
NTC_FAULT[0]
R
BIT
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
FIELD
WATCHDOG_FAULT
BOOST_FAULT
CHRG_FAULT[1]
CHRG_FAULT[0]
BAT_FAULT
NTC_FAULT[2]
NTC_FAULT[1]
NTC_FAULT[0]
Table 16. REG09 Fault Register Description
TYPE
R
R
R
R
R
R
R
R
DESCRIPTION
0 – Normal, 1- Watchdog timer expiration
0 – Normal, 1 – VBUS overloaded (OCP), or VBUS OVP in boost mode
00 – Normal, 01 – Input fault (VBUS OVP or VBAT < VBUS < 3.8 V), 10 - Thermal
shutdown,
11 – Charge Safety Timer Expiration
0 – Normal, 1 – BATOVP
000 – Normal, 101 – Cold, 110 – Hot
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