The NVM bit POWER_ONLY_ABOVE_5V is located where for the ST-USB4500? I can't seem to find a reference to it in en.STSWSTUSB004v1_1_0_v1.1.0

[mparker]

In TNxxx - STUSB4500 NVM Description_V1.1.pdf the bit is undefined.  However, using the GUI to set and clear the bit and finding the difference in the generated NVM config file I found it is bit 3 of NVM Address 0xE6.

Default value is 0x40 (POWER_ONLY_ABOVE_5V is not active).

Setting the value to 0x48 (bit 3 now set) activates POWER_ONLY_ABOVE_5V.  Did test it, works as expected.