Configuration of VDD50USB and VDD33USB Pins When USB Functionality is Not Used

[ManjuMulimani]

Hello ST Community,

I am seeking guidance on how to properly configure the VDD50USB and VDD33USB pins on our STM32 device when we are not utilizing the USB functionality. The explanations provided in the datasheet and application notes are somewhat ambiguous and do not explicitly address the scenario where the USB functionality is not utilized.

Could anyone provide detailed instructions or best practices for configuring these pins in such cases?

 

Thank you!

[TDK]

"connect VDD33USB to GND (saves some supply current), leave VDD50USB unconnected and make sure that the VDD33USB supply level detector is disabled."

Solved: STM32H745 - USB power pins - connect to VDD or Ope... - STMicroelectronics Community

[FBL]

Hi @ManjuMulimani 

 

Check this FAQ: Configuring the VDD50USB and VDD33USB pins on... - STMicroelectronics Community

I hope this would be helpful.