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TPS25926: Output protection.

Guru 10635 points
Part Number: TPS25926

Hi team,

My customer did a short circuit test on the output and the device broke.
TPS25926 does not reboot when I power on.

Do you have any recommendations for protecting the output?

Sincerely.
Kengo.

  • Hi Kengo,

    Thanks for reaching out!

    In case of short circuit and over load current limit, when the device interrupts current flow, input inductance generates a positive voltage spike on the input and output inductance generates a negative voltage spike on the output. The peak amplitude of voltage spikes (transients) is dependent on value of inductance in series to the input or output of the device. Such transients can exceed the Absolute Maximum Ratings of the device if steps are not taken to address the issue.

    Please refer datasheet section 10 on protection from transients. That will definitely help you. 

    Regards

    Kunal Goel