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TPS65987D: Does the device soft-reset itself if some problems happen?

Kairin
Prodigy 110 points
Part Number: TPS65987D

Hi team

Does the device soft reset itself if some problems (such like FW crash or hanging) happen?

In our test environment we found CC sometimes shows High-Z for about 10ms which is expected to be Pull-up.

And the problem can't be reproduced stably ( failure happens about 1/300)

so we think maybe it just resets itself because of some internal problems? 

Is there any triggers for soft reset like that ?

Thanks 

Yu

  • 0
    TI__Expert 8680 points

    Hi Yu,

    Yes, PD controller will go to error recovery if it hits fault conditions like Over current, Over/Under voltage, Thermal issues...

    May i know more about your test case? 

    Thanks

    Prajith 

  • 0 in reply to Prajith Cheerakkoda
    Prodigy 110 points

    Hi Prajith

    Thanks for your answer.

    Our case is a little complicated to be explained simply...

    I am trying to figure out the exact failure trigger condition.

    Let me tell you details after that.

    Is there a list of TPS65987D's known fault conditions or any documents describe TPS65987D's  behavior during error recovery?

    Thanks 

    Yu

  • 0 in reply to Kairin
    TI__Expert 8680 points

    Hi Yu,

    Yeah, it should be hard to repro' the issue as the fail rate it very low. 

    I can answer it in a better way if you can give brief of your test setup. I believe that your device is Src, Is the load within the limit? Is this related to Voltage/ current transition?

    Tnx

    Prajith