Loading STUSB4500 NVM config into STUSB4500L chip doesn't allow expected PD contracts. I am running on STSW-STUSB002 V1.09. Will upgrade to V1.1.1 allow for proper config of STUSB4500L? Thank you.

[MIMBE]

..

[Gregory Go.]

Hello,

Be careful that there are 2 different versions of the chip:

• STUSB4500L (Light version) : USB-C controller, 5V only (up to 15W)
• STUSB4500   (Full version) : USB PD controller, up to 20V/5A (up to 100W)

The STUSB4500L doesn’t support the USB-PD protocol, so you cannot request a voltage higher than 5V, and it doesn’t have any PDOs.

You cannot reprogram the NVM of STUSB4500L to transform it into STUSB4500 (non-L). It doesn’t work as you noticed in your experiment.

If your application needs to accept PD contracts >5V, then you cannot use STUSB4500_L, but you need to use instead the STUSB4500 (non-L).

To bring a little more confusion, be careful that STUSB4500 and STUSB4500L have the same DEVICE_ID = 0x25. But they do not have the same features set.

[MIMBE]

Hello Gregory,

Thank you for your answer. I've already been warned of that point by your colleagues.

Best Regards.

Matt