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UCD7100: UCD7100 negative voltage spikes at the CS will break the CS pin

Frank Xiao
Genius 12055 points
Part Number: UCD7100

Hi team,

My customer is using the UCD7100 now. They use the chip with the H-bridge. But there will be a negative voltage at the CS pin, For worst condition, the negative voltage will reach -1v, will it break the CS pin? Thanks.

br

Frank

  • 0
    TI__Intellectual 2805 points

    Hi Frank,

    How long will the CS pin experience -1V?

    The absolute minimum voltage on CS is -0.3V but the UCD7100 may survive a short pulse of -1V. If it does survive the reliability and  lifetime of the part is not guaranteed because it is outside the abs max range.

    Regards,
    Mateo