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TPS25751: Substitute TPS25751 for TPS25730 retaining CAP_MIS, PLUG_EVENT, SYNC_EN

Bill Norton
Prodigy 230 points
Part Number: TPS25751
Other Parts Discussed in Thread: TPS25730

Tool/software:

Can the TPS25751D duplicate the '730D's dedicated pin functions with GPIO's, and how would that be done?

  • 0
    Prodigy 230 points

    Sorry, meant SINK_EN signel.

  • 0 in reply to Bill Norton
    TI__Mastermind 37855 points

    Hi Bill,

    No, we only have two of those GPIOs available.

    The TPS25751 requires an external configuration and patch image that is loaded on power up of the PD controller. This image is generated using the TPS25751 GUI. Within the GUI, you can configure the GPIOs for specific events by enabling Advanced Configuration at the top of the GUI, and navigating to the IO Config register.

    The TPS25751 supports specific PD related behaviors that can be mapped to any of the GPIOs. The GPIO event drop down menu allows you to select the specific event. The full list of events and their behavior can be found in the TPS25751 TRM

    Here is a list of the TPS25730 PIN and the equivalent TPS25751 GPIO Event

    CAP_MIS - not supported

    Plug_event - PlugEvent

    Sink_EN - Load_Switch_Drive

    With the TPS25751, you can instead read from the active RDO register to determine if there is a capability mismatch.

    Thanks and Regards,

    Chris