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UA78M-Q1: ESD rating

Scarlett Cao
Expert 4000 points
Part Number: UA78M-Q1

Hi team, 

Do you have the ESD rating (HBM CDM) of UA78M05-Q1? It is not available on d.s.

Thank you

Scarlett

  • 0
    TI__Genius 12511 points

    Hi Scarlett,

    The HBM rating should be 1000V, and the CDM rating should be 1000V, however this is quite an old device and the testing may not have occurred when the device was first characterized almost 50 years ago. We are doing a revision to this device currently and I will see what the voltages are for the upcoming device to see if they match up.

    Regards,

    John

  • 0 in reply to John Schneider
    TI__Genius 12511 points

    Hi Scarlett,

    So unfortunately because this device is so old it was never run under the modern ESD standards.

    So what I've done is talk to the engineers working on the redesign to ask them about current certifications and what they think about the old device based on layout and transistor blocks within.

    The new device both commercial and automotive will be confidently certified to the 1kV standard. The old non-automotive version of this device is rated on CDM to 2000V and HBM to 2500V. Because we do not have testing, I cannot confidently say that the old automotive device can survive 2kV CDM, 2.5kV HBM testing, but we believe that the device could survive a 1kV rating for HBM/CDM.

    Thanks for your patience.

    Regards,

    John