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TPS54540: TPS54540 OVP Testing

Joe Howard
Intellectual 2970 points
Part Number: TPS54540

A customer of mine would like to know if and how we test the Overvoltage Protection feature of the TPS54540. Can someone help me with this?

Joe

  • 0
    TI__Guru**** 191445 points

    I do not see any specification for OVP in the electrical characteristics table.  So I doubt that it is tested.  I can check the ATE program, but it may take a few days.

  • 0 in reply to JohnTucker
    TI__Guru**** 191445 points

    The OVP was in fact tested during device characterization using the ATE.  Since OVP was tested using ATE it is likely also tested in production.  There is no easy way for me to determine that.  Also I cannot provide any details on the method used.  Both test engineers that worked on that project are no longer with TI.  If I were to speculate, I bet TPS54540 is tested "open loop".  They probably just apply a ramp voltage directly on VSENSE and detect the level where the part stops switching.