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TPS22950: Behavior at Vin = 0V

Jejomar Ildefonso
Genius 9600 points
Part Number: TPS22950


Hi Team,

Does the reverse current blocking feature of TPS22950 at 0V input conditions? More precisely, when no input voltage is present and the output sees a 5V from a micro USB port?

Thanks in advance!


Kind Regards,

Jejomar

  • 0
    TI__Mastermind 32650 points

    Hi Jejomar,

    When there is 0V on the input, the RCB structure is powered through the output of the device. The device is able to block reverse current in the stage.

    When the input is floating, there is no internal pull down on the IN pin. In this state, RCB may or may not be triggered due to the seen voltage on the IN pin and no current path from OUT to IN.