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TPS74701 pin sequencing

Tom Saluzzo
Expert 1280 points
Other Parts Discussed in Thread: TPS74701

I’m planning to use a TPS74701 and have the following question.

Situation: The Bias pin (+5V) is asserted a few seconds before the voltage at “IN” pin is supplied.  Then, a few seconds after “IN” voltage is present, the “EN” pin is asserted.

 Do you see any issues with the above configuration?

  • 0
    TI__Guru 55940 points

    Hi Tom,

    Vin, Vbias, and Ven are able to be sequenced in any order for this device without causing damage; however, if you are using the soft-start function there are some sequencing requirements.  These requirements can be found in the datasheet on page 13 under the section "Sequencing Requirements."

    Very Respectfully,

    Ryan