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General discussion • Re: How does Pi5 determine Power Supply capacity

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Hopefully the PD negotiation might be developed further, as I understand things, if the pd supply offers 4.5A the Pi5 would turn that down which ends up with both the supply and the Pi5 will be operating with a 3A capability.

I could be wrong and perhaps the Pi5 accepts the highest value over 3A that gets offered?.
PD negotiation is a mode thing, source offers list of modes, sink requests from the list. The spec defines the "legal" modes (Table 2.1), currently it does allow for variable voltages but not variable currents, just 3A & 5A.

Statistics: Posted by bjtheone — Fri Mar 15, 2024 10:54 am



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