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UCD9090A: PMBUS_CNTRL pin, pull-up

Oba
Genius 17525 points
Part Number: UCD9090A


Hello

 

I have a question for PMBUS_CNTRL pin for UCD9090A.

 

When configuring starting sequence by PMBUS_CNTRL and PMBUS_CNTRL pin is pulled-up, does the sequence is started correctly immediately after powering up?

 

My concern is that is “low-to-high rising edge” required to start sequence?

 

Regards,

Oba

 

  • 0
    TI__Guru 66920 points
    PMBUS CONTROL is a level trigger instead of edge tripper.
    Remember that the polarity of the CONTROL is configured. it can start the sequencing either high or low of the PMBUS CONTROL.
    Regards
    Yihe