• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 65 subscribers
  • Views 182 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UCC20520: Is there an internal pull down resistance from the gate to source?

Lauren Mayfield
Expert 7230 points
Part Number: UCC20520

Hi team,

My customer has a question on the UCC20520.. 

Is there an internal pull down resistance from gate to source? From looking at the datasheet, it appears not.  But if not, what kind of leakage currents can they expect between the gate and source ?

Thanks,
Lauren

  • +1
    TI__Expert 4875 points

    Hi Lauren,

    Any leakage current through the output would be very minimal based on the high impedance between the drain and source of the FETs when they're not turned ON (not driving the output high or low). We do not specify this parameter in the datasheet, but we have measured the impedance between VDD and OUT, and VSS and OUT on the bench and it is in the Mega-Ohms range. Thus, any leakage is expected to be small. For isolated supply design purposes, please point your customer to the quiescent current specifications.

    Regards,

    Audrey