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TPS22924C: more than absolute maximum voltage at Vin and Von

Kazuhiko Hirano
Genius 16008 points

Part Number: TPS22924C

Hello,

 

My customer put more than absolute maximum voltage at Vin and Von by mistake on their system.

 

In this case, how could TPS2294C be broken?

Could TPS2294C draw over current?

What failure mode could be thinkable?

 

Best regards,

 

K.Hirano

  • 0
    TI__Prodigy 240 points

    Hi Hirano-san,

    Thanks for your questions about the TPS22924C!

    Regarding the potential device failure modes due to overvoltage, TI does not guarantee any specific failure modes for our devices. While the pass FET can fail open or fail closed, we cannot specify a failure mechanism.

    Any applied voltage over the absolute maximum voltage can damage the pass FET and the device's internal control structures. More specifically, overvoltages applied to electronic components can exceed avalanche breakdown voltage of internal device structures, resulting in excessive current flow as you correctly inferred. This excessive current flow can severely weaken, damage, or overheat the entire device. 

    Please let me know if you have any more questions.

    Best regards,

    Rachel Richardson