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Original question:

AMC7834: AMC7834 PA_ON state

AMC7834: AMC7834: PA_ON pin

KUANCHANG LIN
Prodigy 10 points
Part Number: AMC7834

Hi TI,

I have question that why the PA_ON pin is used to driving an external PMOS switch only, could I use the NMOS ?

I have the GAN VDD is 28V which is over the limit of PA_VDD 20V, do you have recommend PMOS switch from TI could handle 28V VDrain ? 

Thanks,

  • 0
    TI__Expert 5440 points

    Hi Kuanchang,

    It should be fine to use an NMOS instead of a PMOS on the PA_ON pin. TI doesn't have any PMOS transistors that are over 20V. You will have to look outside of TI for one. 

    A common implementation of the PA_ON is using the following high voltage switch:

    Thanks,

    Erin Guthrie