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TPS51200: TPS51200DRCR

YING CAI
Prodigy 20 points
Part Number: TPS51200

We used TPS51200DRCR on many of our project, there is a HAST TEST in our module. 110°C, 85% R.H., alt V bias.

No problem occur in former project, but now on one project, one of our module fail on HAST test, we checked, found that TPS51200 fail, no output.

We want to know whether this is normal. In the spec, its Op temp TA is -40~85C, Operating junction temp TC is -40~150C. 

110°C, 85% R.H., alt V bias. is unacceptable for this part?  Is there any other part whcih can pass this HAST?

James Cai

  • 0
    TI__Expert 5965 points

    Hi James,

    TPS51200 did pass 110°C, 85% R.H biased HAST test during device qualification. Can you provide more details about the failure? Do you mean that the part doesn't have output after the HAST test or during the test? Can you measure if there is short from output pin to GND?

    There is an automotive version, TPS51200AQ1, which passed both 110°C, 85% R.H and 130°C, 85% R.H biased HAST test, but it will be at higher price.

    Regards,

    Weidong

  • 0 in reply to Weidong Zhu
    Prodigy 20 points

    Hi Weidong,

    Thanks for your quick feedback.

    We checked the log, this part fail at 86 hours of HAST, our test plan is 96 hours. How long is your device qualification HAST?

    We measured, no short on output pin to GND. No output, we changed a new part, the system work well. 

    Can we send this part to TI, and anyone can test it on your tester? I think TI have some tester, put this part in the socket and test every pin and function.

    James Cai

  • 0 in reply to YING CAI
    TI__Expert 5965 points

    Hi James,

    Thanks for the update. In our HAST test, we tested for 264 hours.

    Before you ship the failed unit to us, can you swap the failed unit back to the board to confirm the failure? We usually recommend to do "A-B-A" swap to confirm the failed unit is bad.

    If there is still no output, please submit a return through TI web portal http://www.ti.com/support-quality/resources/customer-returns.html, and we will start the failure analysis.

    Regards,

    Weidong