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Tps563219: Tps563219 EN cause the PG hight or low

Hermes Lin1
Intellectual 420 points

Part Number: Tps563219

if Tps563219 EN_pin low than threshold voltage, the PG_pin is pulled to low or floating?

  • 0
    TI__Expert 4875 points
    Hi Hermes,

    You could treat PG internal as a controlled N MOSFET. There is internal power supply ready to drive when Vin above UVLO. In this case, if Vin is higher than UVLO, then the PG pin will reflect the condition of the output voltage on FB pin. Since no EN high applied, the PG pin is low impedance which means pulled to low. Thanks!

    Best,
    Anthony