JAJSH75A February 2019 – March 2019 BQ25883
PRODUCTION DATA.
The device charges the battery in five phases: trickle charge, pre-charge, constant current, constant voltage, and top-off timer charging. At the beginning of a charging cycle, the device checks the battery voltage and regulates current/voltage accordingly.
VBAT | CHARGING CURRENT | REGISTER DEFAULT SETTING | CHRG_STAT |
---|---|---|---|
< VBAT_SHORT | IBAT_SHORT | 100 mA | 001 |
VBAT_SHORT – VBAT_LOWV | IPRECHG | 150 mA | 010 |
> VBAT_LOWV | ICHG | 1500 mA | 011 |
If the charger device is in DPM regulation or thermal regulation during charging, the actual charging current will be less than the programmed value. In this case, termination is temporarily disabled and the charging safety timer is counted at half the clock rate, as explained in the Charging Safety Timer section.