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TPS65381A-Q1: Internal Pull-up power supply for NRES & ENDRV

Zhou Fang67
Expert 4250 points
Part Number: TPS65381A-Q1

Hi Expert,

NRES & ENDRV have internal pull up resistor. Which internal power rail does these pull-up are connected? What is the voltage for the pull-up power rail?

Thanks.

Zhou

  • 0
    TI__Mastermind 20590 points

    Hi Zhou,

    Please refer to figure 5-14. Reset and Enable Circuit, the pullup and circuit paths for NRES and ENDRV pins VDDIO (IO supply input) is shown.  The VDDIO supply voltage normally tied to VDD3/5 which is the rail from the device assumed to be used for the IO supply in the system.  VDD3/5 is configurable for either 3.3V or 5V operation.

    Best Regards,

    Scott