STUSB4500L Schematics review + questions

[NDvas.3]

Hello all,

I am attaching the schematics for a PD sink system we have designed and built. Our aim is to get this sink system to accept both PD and non PD type C power supplies and transfer their power to the 'FRONT_PWR' path on our schematics.

Of course a microcontroller is connected and controlling the PD parameters, etc. A few questions:

1. Is this schematics correct?
2. If a 15V/3A type C (non PD) power supply is connected, will this system accept it and transfer it's power?
3. We are having an issue where sometimes when a power supply is connected, the power output will work for a fraction of a second and then shut down. What could be causing this?

Thank you very much for your help!

Nir.

[logic0]

Hi,

Did you ever get an answer to your question, or figure out what was causing the shutdown?

I have a very similar situation, except at 20V.

 

[logic0]

Hi, I just realized I was using the STUSB4500L  part, which is limited to 5V, as encountered by several others on the main thread. It looks like we want the part without the L.