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TPS40057: driver type

Part Number: TPS40057

Hello,

    In our datasheet block diagram, I see the driver is N-channel driver. Is it a push-pull output, or only a N-channel mosfet? I see in our reference design, there is no discharge resistor between gate and source of mosfet, so I want to check if it's necessary to place a discharge resistor between gate and source of mosfet, or the discharge current can flow to source through driver.

  • Hi Feng Wu,

    The inside N-channel driver has both charging and discharging circuit to turn on/off outside MOSFET, pls refer to data sheet spec of Output Driver. no need to add discharge resistor between gate and source of external MOSFET.

    B R

    Andy