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TPS92630-Q1: Question for fault line bus connection

Lee, Sam
Expert 6025 points
Part Number: TPS92630-Q1

Hi team,

A few TPS92630-Q1 have fault line bus connection with other device's open drain line (OPENLED pin of LT3761). At that condition,

-. If the open drain line of the other device goes low, does the connected faults of TPS92630-Q1 pulls down and shutdown all TPS92630-Q1?

-. Is there any condition for external signal, to make faults low and to shutdown TPS92630-Q1?

Thanks,

Sam Lee

  • 0
    TI__Expert 5475 points
    Hi Sam,

    1. Yes, if the Fault pin is pulled low by the other device, the TPS92630 device will shut down.
    2. Some device fault condition will pull down the FAULT pin and shut down the device, such as LED short to ground, REF resistor short or open, thermal shutdown.