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TPIC6A595: EOS at common area.

Rhed
Prodigy 15 points
Part Number: TPIC6A595

We have multiple occurrence of this Relay driver (TPIC6A595) failure.

EOS was observed in a common area after undergoing FA. 

Would TI be willing to elaborate on the failure?

  • Which pin on the TPIC was over stressed? The EOS is new Pin5 and Pin6 which are PGND but almost the entire circuit is between them?
  • Application circuit is the same with recommended application based from datasheet. And from my analysis our application didn't reach maximum ratings, please help with this. 
  • Anything else that would help us understand the excessive stresses this component experienced?

We want to know the true root cause and corrective action regarding this matter.

I can send application circuit and FA findings, but not willing to post on a public forum.

Regards,

Rhed

  • 0
    TI__Expert 5380 points
    Hi Rhed,

    I'm sorry for replying this so late, i will discuss with our designers on this device and give you feedback within this week.

    At the same time, i will send you a friendship invitation then you can share the FA findings with me privitely.
  • 0
    TI__Genius 14295 points
    Hi, Rhed,

    I'll close this thread due to inactivity and if you have any more questions please reply to it directly and it will open again.

    Please help to click "Resolve" if the problem is solved.

    Thanks.
    Regards,
    Kenneth