STUSB4500 burned when connected to 20V USB-C cable about fpx HOT 4 CLOSED

Oooo — sorry to hear that!

I haven't had this happen to me despite using it in the exact setup you're describing. Are you sure it was the STUSB4500 chip that went bust and not some other component?

I can't think of anything that would case the ST chip to draw too much power so fast.

from fpx.

I am sure it was since it was visibly damaged and burnt my finger a bit. It also took the uController with it. I replaced both and it is working fine now. I am scared to try to replicate it but will do it for science.

I really like your design and I hope you have plans to bring it back in stock soon. If not, let me know if I can help you with that.

from fpx.

I recreated what I did before and it burned again. Here is a link to the video of it burning up. Maybe you can try to replicate on your end.

Video Demo

Could this be because of D5 not working properly? I didnt have the exact part so I bodged in a equivalent SOD-323 schottky. Maybe that is not doing its job.

from fpx.

Thanks for that. I really can't tell besides that I have the same USB-C trigger/monitor device. Not sure if that's doing something funky.

I don't actually have any units left and don't have immediate plans to build more ATM.

from fpx.