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TPS25820: TPS25820 power supply

Sammi Shang
Expert 4450 points
Part Number: TPS25820
Other Parts Discussed in Thread: TPS65987D

Dear team,

I wonder if TPS25820 could get power supply from Type C Vbus 5V, not use its own power supply, let OUT as NC, only use CC pin to detection?

Thanks.

Best regards,

Sammi

  • 0
    TI__Genius 9630 points

    Hi Sammi,

    The TPS25820 is a source and cannot be a sink. In order to be a sink, the TPS25820 would need to assert Rd on its CC pins. The device is unable to do this as it is a source only, so it would not be able to receive 5 V from the Type-C VBUS. This configuration is not possible using the TPS25820.

    The TPS65987D is able to be a dual role port (DRP), meaning it can be a source or a sink. 

    Thanks,

    Emma

  • 0 in reply to Emma Hoying
    TI__Expert 4450 points

    Hi Emma,

    Many thanks for your response.

    Except TPS65987D, do we have other CC logic IC recommend? The specific requirement for customer is: support type-C vbus supply 5V power, no other power IC need; positive insert and negative insert detection.

    Thanks.

    Best regards,

    Sammi

  • 0 in reply to Sammi Shang
    TI__Genius 9630 points

    Hi Sammi,

    We do not have a non-PD Type-C sink controller. Our PD controllers in the TPS6598x family are able to be a sink or a source, and are your best choice if you are looking for a Type-C controller that can be a sink.

    Both the TPS25820 and the TPS6598x family have cable orientation detection. 

    Thanks,

    Emma