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TPS25750: TPS25750 USB comms

Jackson A
Prodigy 50 points

Part Number: TPS25750
Other Parts Discussed in Thread: TS5USBC41,

Hi,

Looking to use the TPS25750 device as a sink (UFP) for a battery powered device. Can I also route the source USB data to an onboard microcontroller via a SPDT USB mux? ie. TS5USBC41. If so can I control the muxing logic with the TPS25750?

Thanks

J

  • 0
    TI__Mastermind 33801 points

    Jackson,

    If you are operating as a sink(UFP), then there is no benefit to routing the USB port to the TPS25750.

    You should just connect your MCU up and set the GUI configuration for the TPS25750 to be a USB2.0 device.

    Regards,

    Chuck

  • 0 in reply to Chuck Branch
    Prodigy 50 points

    Hi Chuck,

    Thank you for you response.

    So USB data should connect to my MCU as normal with PD operations handled by the CC lines?

    If I did want to become a DFP would the USB phy in the MCU would need to support OTG?

    Thanks,

    J

  • 0 in reply to Jackson A
    TI__Mastermind 33801 points

    J,

    The MCU is able to trigger roll swaps and other behaviors as desired.

    How are you configuring the charger and what charger are you using?  We support directly 3 families of TI chargers in the TPS25750 firmware.

    Can you provide me with a higher level system diagram?  If confidentiality is an issue, then you can send me friend request and we can share them over private message