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TPS50601-SP: Test of the Boot-PH and Error Amp per the spec.

Joe Davila
Prodigy 40 points
Part Number: TPS50601-SP

What is the best way to test the parameter Boot-PH ULVO.  For the error amplifier source/sink do I simply input 1V at the comp pin and read back the current at that pin?  I would assume that I would need to open the RC network on that pin to make the measurement.

  • 0
    TI__Mastermind 28475 points
    Hey Joe,

    The best way of testing Boot-PH UVLO is to have the BOOT pin go lower than what the UVLO is and slowly try to bring it up until the device starts switching again. When the BOOT pin goes too low the device won't turn on the high side FET. When the Boot gets high enough the device will start switching again.

    For the error amplifier source/sink, setting the error voltage high and then measuring the current out of the comp pin will work for half of it.
    Setting the error voltage low and then measuring the current out of the comp pin will give you the other half.


    Thanks,
    Daniel