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TPS65983B: TPS65983B DP

Zach Moore38
Prodigy 60 points
Part Number: TPS65983B
Other Parts Discussed in Thread: TPS65987D, TPS65987, TPS65982, TPS65988

Hello,

How do you support DisplayPort alt mode on the TPS65983b?

  • 0
    TI__Mastermind 36756 points

    Hi Zach,

    The TPS65983B is only to be used for TBT device designs following an Intel reference design. If this is not the case for your design, please use the TPS65987D. You can enable DP mode using the TPS6598x Application Customization Tool

    If this answers your question, PLEASE select This resolved my issue

    Thank you,

    Eric

  • 0 in reply to Eric Beljaars
    Prodigy 60 points

    Eric,
    What is the difference between DDH and DH for the TPS65987? Also, what are the main differences between the 87D and the 88? Does the TPS65987D have the same TPS65983B features?

    Also, when using a TPS65982, I seem to be having troubles getting into TBT alt mode when interfacing with a HUB that uses Intel's TBT Reference design. Our product works fine when interfacing with an older TBT reference design which has a cactus ridge on board, but when plugging into the HUB or the Tapex Creek eval board, our product is not automatically entering TBT alt mode. Thoughts? I appreciate all of your help.



    Thank You,
    Zach

  • 0 in reply to Zach Moore38
    TI__Mastermind 36756 points

    Hi Zach,

    87D and 87DDH are the same part, no differences between them. The 87D is a single port PD controller with two integrated power paths. One is typically used for sourcing power and the other for sinking power. The TPS65988 is a dual port PD controller with two integrated power paths where the two internal power paths are used for sourcing power to each port. The TPS65988 and 87D also offer external GPIO control for a PFET power path.

    What feature of the 83B are you specifically looking for? The TPS65987D has most of the same features as the 83B.

    If this answers your question, PLEASE select This resolved my issue

    Thank you,
    Eric

  • 0 in reply to Eric Beljaars
    Prodigy 60 points
    Eric,
    I appreciate the information you've provided. I'm mainly just trying to understand the differences between all of these PD products you offer. When looking at the product pages for each, or datasheets, it was hard for me to understand these differences. The datasheet for the TPS65983B looks almost identical in regards to description of the TPS65982 so I was confused about not being able to configure the TPS65983B the same way as my TPS65982. I now understand that the TPS65983B should only be used for TBT Gen3 based products that are using the Intel reference design.

    Do you happen to know if the TPS65982 has any troubles entering TBT alt mode with TBT Gen3 Intel Reference design board/producs?
  • 0 in reply to Zach Moore38
    TI__Mastermind 36756 points
    Hi Zach,

    The TPS65982 or TPS65987D/88 can be used for TBT Host designs and enter thunderbolt mode correctly. For TBT devices, only the TPS65983B is approved for use by Intel.

    Thank you,
    Eric