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TPS65983: Thunderbolt system

Austin Chen87
Prodigy 30 points
Part Number: TPS65983


Hi Sir.

We are building a thunderbolt system and following Tahini reference design.But I want to decrease input power consumption to below 0.15W when Type C cable disconnect(without host connection),

the purpose is for ErP test.So I need to cut off many unnecessary power, just have PD and Titan Ridge are alive.

I want to know which pin(GPIO) can be used to turn on other power after cable connect(with host connection).

  • 0
    TI__Expert 6280 points
    Hi Austin,

    All of the GPIO should be configured correctly and no modifications should be made to the project outside of the available fields.

    The GPIO (DG_PM_S0_EN) that enables all of the load switches from the main PW_VCC3V3 supply comes from the TBT controller and that power supplies other devices. Also the power supplies for 5V/9V/15V are always on in the reference design. The power consumption will vary from the supplies used in the system.

    Jacob