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Visitor II
September 26, 2025
Question

USB-PD MCU for Display Port Source - Power Sink

  • September 26, 2025
  • 1 reply
  • 449 views

Hi, we are developing a device which outputs display port over type-c and needs to sink power. Similar to Laptops when connected to hubs. The required power is less than 60W. 

Im looking a for a suitable USB-PD implementation for this purpose. Can this be achieved using the USB PD peripheral in STM32s? If so, how? 

 

caneralp_2-1758909339802.png
Regards,
Caner,
Alp Lab

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    1 reply

    Technical Moderator
    September 30, 2025

    Hi @caneralp 

    I'm not expert in power management, I suggest you checking the implementation provided in the demo on G0. eval STM32CubeG0 demonstration firmware - User manual section 4.3.7 Display Port demonstration.
    This section 9.11. How DP does it work on EVAL-G081 demonstration.

    Source code of this demo. USB PD library supports VDM (Vendor define message)