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BQ24195: Confirm if Q1 & Q2 is used for reverse voltage protection

Part Number: BQ24195


Tool/software:

Hi Team,

I am designing a battery charger with bq24195 chipset. in its application circuit i am not sure why there is Mosfet Q1 and Q2 used. i guess it's for reverser protection but i does not know its actually need since this chipset is mainly used for smaller device like phones and in those device power cable can not connect in reverse. so i guess mosfet Q1 is not required.

Please confirm me and if it has other use case then kindly elaborate it.