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TPS65988: Questions about TI / TPS65988

Jimmy Lai
Expert 6845 points
Part Number: TPS65988

Dear Team,

We found there were some USB devices that were detected again and again, and the detection was not successful eventually.

After comparing the CC log with our NB which could have a successful detection, we found the USB Type-C port output power of our project is set on 5V/0.9A, and in my NB it is set on 5V/1.5A. Please see the attached files.

Could you suggest which part of the setting I should change in the Customization Tool that the output power could meet the 5V/1.5A?

Fail.data     Success.data   

Many Thanks,

Jimmy

  • 0
    TI__Genius 15320 points

    Hi Jimmy,

    What program/tool do I need to view the .data files? If you haven't already, could you share the project files for the TI USB PD controller and the CC Logs.

    There are two things I think could be happening here. If you are using a USB Type-A connector or not using USB-PD, you may want to adjust this setting.

    If you are in PD mode acting as a power sink, you will want to adjust the Transmit Sink Capabilities register:

    If you are in PD mode acting as a power source, you will want to adjust the Transmit Source Capabilities register:

    Thanks and Regards,

    Chris

  • 0 in reply to Christopher Lim1
    TI__Expert 6845 points

    Hi Chris,

    We appreciated your great support!

    The attached file is the project file I used, and I have checked the setting and it is the same as you said. Please help to review it. 

    And also I found the same situation happens on TPS65988EVM.

     TPS65988_V03.pjt

    We use the Power-Z KM001C to see what's going on, and below is the picture we catched.

     

    - Fail and Re-detection:

    -Success for the first time:

    Many Thanks,

    Jimmy

  • 0 in reply to Jimmy Lai
    TI__Genius 15320 points

    Hi Jimmy,

    Can you try increasing the Operating Current Value to 1.5A?

    Thanks and Regards,

    Chris