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TPS25947: schematic check

GARETH OU
Guru 11815 points
Part Number: TPS25947


Hi

1.Could you help check the below TPS259470 schematic and any need to adjust

tps259470.jpg

2. Because the system hasn't switched to 3.3V yet when Type-C is first connected, the V33S pull signal will only be generated after VBUS is sent to the system. Is this OK? 

v3ss.jpg

Thanks

 

  • 0
    TI__Expert 5310 points

    Hi Gareth

    The schematic looks fine

    I would suggest adding TVS diodes with breaking voltage just greater than absolute maximum of input pin

    I would suggest adding schottky diodes at the output


    GARETH OU said:

    Because the system hasn't switched to 3.3V yet when Type-C is first connected, the V33S pull signal will only be generated after VBUS is sent to the system. Is this OK? 

    Can you please elaborate on this

    Best Regards

    Sailendra