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USB-C-PD-DUO-EVM: USB-C-PD-DUO-EVM DOA - Need approval for refund

david sidrane
Prodigy 160 points
Part Number: USB-C-PD-DUO-EVM


Per Request: Kindly post an inquiry at e2e.ti.com. Once the TI engineer confirms that the board is defective, we will proceed with the refund further. Please note that the engineer has to advise further if the item needs to be returned to not.

 

Number: CS0181032 Contact: David

Short description: Unit was DOA on arrival 

comments: The USB-C-PD-DUO-EVM was DOA on arrival I ordered another one. Please issue a refund for the first unit.

20 V on SYS, Blue led and Green 3.3 LED lit. On other LED's light. None of the switches do anything. There is no output Voltage.

  • 0
    TI__Mastermind 30000 points

    Hello David,

    Do you have the Source board connected to the Sink board via a Type-C cable? You must have a valid PD contract between the two devices in order for the output voltage to change.

    If that doesn't work, you can try re-programming the board following section 4 of the user's guide https://www.ti.com/lit/ug/slvubj5/slvubj5.pdf

    Also, another thing to note, that pressing the 20V button once both are connected does not mean it will change to 20V. For example, if click the 20V button on the source board, it will change the source capabilities to 5V, 9V, 15V, and 20V. However, if the sink board has not been reprogrammed, it will only advertise that it can sink 5V so the negotiated voltage will stay at 5V. If you then click lets say the 15V button, it will advertise that it can sink 5V, 9V, and 15V. The source board will still be able to source up to 20V, so now the negotiated voltage changes to 15V since the sink capabilities of the sink board changed.

    Hope this helps solve your issue

  • 0 in reply to Adam Mc Gaffin
    Prodigy 160 points

    Adam Mc Gaffin said:

    Hello David,

    Do you have the Source board connected to the Sink board via a Type-C cable? You must have a valid PD contract between the two devices in order for the output voltage to change.

    If that doesn't work, you can try re-programming the board following section 4 of the user's guide https://www.ti.com/lit/ug/slvubj5/slvubj5.pdf

    Also, another thing to note, that pressing the 20V button once both are connected does not mean it will change to 20V. For example, if click the 20V button on the source board, it will change the source capabilities to 5V, 9V, 15V, and 20V. However, if the sink board has not been reprogrammed, it will only advertise that it can sink 5V so the negotiated voltage will stay at 5V. If you then click lets say the 15V button, it will advertise that it can sink 5V, 9V, and 15V. The source board will still be able to source up to 20V, so now the negotiated voltage changes to 15V since the sink capabilities of the sink board changed.

    Hope this helps solve your issue

    Yes.

    Tried reprogramming. Sink passed

    Source Hung - Yes I moved the jumper.

    Replacement Arrived and LED and switches track as expected. Except the 20V LED On Source is not on but Output measures 20V 

    Please OK the refund for the DOA first unit.

  • 0 in reply to david sidrane
    TI__Mastermind 30000 points

    That's strange. Yes, I approve the refund for the first unit as you already checked all the other items I would have suggested