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LM3150: LM3150 OVP and Short-circuit protection delay time

tateo yamashiro
Guru 10890 points
Part Number: LM3150

Hi,

We got a question from customer about LM3150.
Could you help us?

[Question]
- How much are OVP and short-circuit detection delay time?
  We don't need the gurantee. We want to estimate whether false detection occur caused by output voltage noise or not.

Best Regards,
tateo

  • 0
    TI__Intellectual 2225 points
    There is virtually no delay (it will beon the order of nano-seconds) for the OVP comparator and the short-circuit detection. Both of these functions are implemented using the same comparator with different thresholds.

    For the OVP, it will terminate the on-pulse and turn off both HS and LS FETs until the output voltage falls back to a safe level.

    For the short-circuit, it will discharge the comp, let the output fall to 0V, and then attempt re-start.