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Original question:

TPS26750: Is it possible for it to have USB2.0, Display Port and 240W PD at the same time?

TPS26750: Display Alt Mode options

Aria10
Prodigy 130 points
Part Number: TPS26750
Other Parts Discussed in Thread: TPS65987DDK

Tool/software:

I understand TPS26750 doesn't support Display Port Alternate mode. 

But can we have its GPIO control a couple of switches and level shifter to be able to control the SBU lines to externally route for DisplayPort-Alternate mode?

My use case is as follows--

  • Need atleast 140W charging-- so a PD controller capable of EPR followed by BC
  • Need to also support Display Alt mode (with whatever extra circuitry is possible, as long as its programmable)

Are there any TI PD controllers that can support this? What's the best way you propose moving forward with these requirements?

Appreciate any help

  • +1
    TI__Mastermind 18305 points

    Hi Aria,

    Thanks for reaching out on E2E!

    For DP alt mode you will need a PD controller that is capable of doing DP alt mode like the TPS65987DDK. Unfortunately that PD controller does not support EPR but it is the only option we have to support DP.

    Even if you routed the SBUs separately, there would be no DP negotiation in the PD contract so it is possible that the DFP or UFP connected to your device does not begin any AUX communication for DP.

    Thank you,

    Kevin