Here's the relevant part from the current USB PD standard, Release 3.1, Version 1.8, page 76. A 5V/5A mode simply does not exist. If you need 25W, you have the option to use 9V with 3A.That gives you 27W. So instead of adding that option to the board, they opted for developing their own non-standard power brick. Le sigh.
@jwildeboer Oh good... That said, I spy an opportunity for a power supply hat that supports one or more of the standard modes? Would I be surprised to see this being sold by the foundation themselves shortly... nope.
@jwildeboer Not cool. The USB standard itself becomes too complicated for ordinary userd, and companies make it even worse by not obeying the standard... 😒
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