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Tool/software:
Is there a way to turn off BATFET while the battery is connected?
I would prefer a method other than SHIP FET.
Hi Tomonori,
No. The BATFET's body diode is always present and cannot be turned off.
Regards,
Jeff
Hi Tomonori,
When in battery only mode (no voltage at VBUS), the charger has a charge pump that drives the BATFET's gate high, turning it on, if battery voltage > battery UVLO.
Regards,
Jeff
Hi Tomonori,
No. The BATFET turns on full in HiZ mode (either auto HiZ from when VBUS<UVLO or EN_HIZ bit=1). DISACDRV has no effect on the BATFET.
EN_CHG =0 turns off current flow from SYS to BAT, i.e. charging but not discharging from BAT to SYS.
Regards,
Jeff