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TPS65983B: Design question

Yu Seven
Intellectual 450 points
Part Number: TPS65983B

Hi Support

Could you help me check the schematic and below question, with Intel TBT3 Titan Ridge, do PD. Just output 5V/3A. 

Please also confirm the following questions.
1. What is the use of MRESET and HRESET separately?
The Datasheet is not clear, Could you more explanation?
What should I do with the line?

2. We don't have an EC. What should I do with the I2C2 function pin?

  • 0
    TI__Expert 6430 points
    Hi Yu,

    Please refer our EVM and USB Type-C™ and Power Delivery Multiport Adapter Reference Design (www.ti.com/.../TIDA-03027) to finalize your schematics.

    Answer to your queries are as follows:
    1. What is the use of MRESET and HRESET separately?
    The Datasheet is not clear, Could you more explanation?
    What should I do with the line?
    HRESET: This pin is the hardware reset of the PD controller, will reset the PD controller when pulled high.
    MRESET: This pin is used in thunderboth (TBT) systems. It causes the TBT chip to reset when toggles. Mostly it wont be used in your design.

    2. We don't have an EC. What should I do with the I2C2 function pin?
    Just connect pull-ups on it and leave.

    Please click "This resolves my issue" if I was able to answer your query.

    Thanks,
    Rahul