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TPS54326: OCP didn't auto recovery

Kuan Wei Chen (Kevin Chen)
Genius 9710 points
Part Number: TPS54326

Dear Team,

Customer is testing OCP on the device, but when it recover the loading the device still latch.

On the datasheet it mentioned this device is non-latch.

Can you help me to check what is wrong here?

BR

Kevin

  • 0
    TI__Genius 14455 points

    Hi Kevin,
      If you read page 8 of the datasheet, it mentions that over current itself is non-latching  as long as the overcurrent does not cause the Vout to fall below the undervoltage threshold. If that happens, the undervoltage protection kicks-in and latches both the top and bottom MOSFET.

    You can see that mentioned in the "Over/Under Voltage Protection" section.

    regards,

    Gerold