USB HOST

[FFran]

Is the design of this circuit OK to be USB HOST?

https://drive.google.com/open?id=1zKJQuh5CJrl1X4RY4lJzdEwwPDz0wLm2

https://drive.google.com/open?id=1pBKWj9IoOnVFrW1I-eUM-54Y8_F0gw5J

[Khouloud GARSI]

Hi @FFran​ ,

For USB FS downstream application, it's required to use a switch with over-current protection 

(indication to the user in case of a VBUS overload ) and esd protection (to be placed as close as possible to the USB connector); which are both covered in your design.

For more details, you may refer to the application note AN4879 "USB hardware and PCB guidelines using STM32 MCUs". It provides hardware guidelines for PCB design.

Link to AN4879:

https://www.st.com/content/ccc/resource/technical/document/application_note/group0/0b/10/63/76/87/7a/47/4b/DM00296349/files/DM00296349.pdf/jcr:content/translations/en.DM00296349.pdf

Khouloud.

[FFran]

In agreement.

I will check it.

Thank you!

[Khouloud GARSI]

You're welcome :smiling_face_with_smiling_eyes:

Khouloud.