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INA219: ina219 transient spec

Ann_Lien
Genius 10640 points
Part Number: INA219

Hi expert,

My customer is wondering Common mode voltage transient tolerance for INA219. Do we have transient spec for common mode voltage for INA219? (like 32V tolerance in 20ns) Thanks a lot!!

Best regards,

Ann Lien

  • 0
    Guru 140200 points
    Hi Ann Lien,

    20ns would be in the range of ESD. In this case the ESD ratings in section 7.2 of datasheet would be relevant. Longer lasting overvoltages should not exceed the absolute maximum ratings given in section 7.1, though.

    Kai
  • 0 in reply to kai klaas69
    TI__Mastermind 27600 points

    Hi Ann,

    Datasheet spec is all that we can guarantee.

    It is possible to kill the part with a low voltage pulse such as 32V (think of the ultimate case of an infinite pulse, or DC). In case of repeated over voltage condition, even if the device doesn’t fail right away, it is very likely that walking-wounded are created. And it becomes a reliability risk.

    However, sometimes it is possible to absorb the transients with protection circuits such as a pair of TVS diodes. But this has to be treated on a very specific, case by case level, not to be generalized.

    Thank you Kai for your input.

    Regards, Guang

  • 0 in reply to Guang Zhou
    TI__Mastermind 27715 points
    Hi Ann,

    It's been several days since your last post, so hopefully your issue is resolved. If you need more assistance, simply reply to reopen this thread or start a new one.

    Best regards,

    Ian Williams