BQ25890H Datasheet, PDF (34/66 Pages) Texas Instruments – I2C Controlled Single Cell 5-A Fast Charger

BQ25890H
SLUSCC5 – SEPTEMBER 2016
Device Functional Modes (continued)
POR
watchdog timer expired
Reset registers
I2C interface enabled
Y
I2C Write?
N
Default Mode
Reset watchdog timer
Reset selective registers
Host Mode
Start watchdog timer
Host programs registers
Y
WD_RST bit = 1?
N
Y
N
I2C Write?
Y
Watchdog Timer
N
Expired?
Figure 25. Watchdog Timer Flow Chart
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