Hi,
We are designing a circuit that include a lithium battery charge (BQ24171RGYT and BQ27441DRZR-G1A).
The circuit for the charger is very similar to the one shown in BQ24171EVM-706-15V (for 1 cell). It includes the “Battery discharge MOSFET gate driver output” BATDRV mosfet.
The circuit needs to provide the option to disconnect the battery during storage.
One option is using a bidirectional mosfet circuit next the battery connector (it will be triggered externally by a tiny TACT switch, active low).
Question:
Can we use the BATDRV mosfet to disconnect the battery from the load? Using an AND circuit (inputs # BATDRV and TACT switch associated to a latching circuit).
Or can you advice other way to do it? No much pcb real state is available.
Thank you in advance
