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TPS630252: Short circuit protection when device is hard short

Takahiro Saito
Expert 5455 points
Part Number: TPS630252

Hi team, 

Datasheet describes about short circuit protection like below.

-When the output voltage does not increase above 1.2V, the device assumes a short circuit at the output and limits the input current to 4 A.

My customer will do hard short test. How does short circuit protection work when device is in hard short condition?

 Is the input current correctly limited to 4A?

Regards,

Saito

  • 0
    TI__Expert 7925 points

    Hi Saito,

    Both the input and the output current will be limited to 4 A. We will correct the description in the next datasheet revision. In short circuit situation, the output current will hit the current limit first (around 4 A typically), the input current will be somewhat lower.

    Also, note that during a short circuit, the dissipation in the device is higher, but the thermal protection will make sure the device is not damaged by restarting the device if necessary. 

    Best regards,
    Milos