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UCC256403: About variation of pause timer

user6230314
Prodigy 220 points
Part Number: UCC256403

Hi,

Once in the fault state, it will stop for one second and restart.

The pause timer is typically 1 second, but what percentage does it vary?

I think that the variation of the internal clock cycle has an effect.

Best Regards

  • 0
    TI__Mastermind 40350 points

    Hello User6230314,

    Thank you for your interest in the UCC256403 LLC controller.

    I have referred your question to the design center for this device and will update this thread with their answer when I receive it.
    Please allow a day or two for a response. 

    Regards,
    Ulrich

  • 0 in reply to Ulrich Goerke
    TI__Mastermind 40350 points

    Hello User6230314,

    I have received an answer, and the 6-sigma variation of the 1-scond pause timer is +/-15%.

    MIN

    TYP

    MAX

    0.85

    1

    1.15

    Since it is a circuit common to the entire UCC25630x and UCC25640x families, the variation applies to each of the controllers in these families.  

    Regards,
    Ulrich