Hi all,
I was super exited to test the new STUSB4531 IC on the EVAL-SCS006V1.
The PPS support of the chip is the main reason to pass over from the STUSB4500. I have done a lot of test with 100W PPS enabled USB-C supply but without luck. i did not manage to get it working. Attached is a screenshot of an attempt to trigger 18V via different method:
18V Fixed PDO: This was obviously not going to work as 18v is not a fixed PDO.
18V APDO: This also was not supposed to work because the source's PDO does not fall into this range
PPS: a 16V-18V was asked and should have been asked first de to PPS_PRIORITY set to 1
Things to note:
1- All three options have also been tested individually without success
2- Multiple current from 1.5A to 5A have been tested
3- Source is offering from 3.3V-21V@5A in PPS as you can see in the capture (also on the product label)
4- A power reset (USB unplug/plug has been done between every test)
5- ABOVE_5V flag has been tested on/off and behave as expected.
6- Multiple PDP have been tested. Over, under and equal to the asked power
What am I missing? Has anyone been able to successfully obtain a PPS
Thank you in advance.
