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TPS65988: Question on Configuration 3

Mitchell
Expert 4915 points
Part Number: TPS65988

Hi Team,

Configuration 3 mentions " 5-20 V at 0.9 - 3.0 A Sink capability" however my customer is never seeing it auto go up to any voltage above 5V in this mode by default. Is that the expected behavior?

They have it connected to a known-working USB-PD power source capable of 20V @ 3A so I'd like to confirm if this is expected or not. They do see that it auto jumps between port1 or port2 input depending on which one is the higher voltage (4.8V vs 5.1V, etc).

Thanks,
Mitchell