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LM5175: Current limit detection delay time

K. Sasaki14
Guru 10200 points
Part Number: LM5175


Does LM5175 have delay time from current limit detection to turn off FET.

Please let me know the value if it has. I don't require guaranteed value, reference value is OK.

I think it doesn't have delay time but there is response delay of detection circuit. If it is so, is it within a few hundred ns?

Best Regards,
Kohei Sasaki

  • 0
    TI__Genius 11490 points

    Hi Kohei,

    The LM5175 uses valley current mode for buck and peak current mode for buck. The current limit response time is within the minimum pulse width for LDRV1/LDRV2. Typically values for the pulse widths observed on the bench are ~250ns.

    Regards,
    Vijay