Question
STUSB4700 : Sourcing only when external power is available, product drawing from Vbus otherwise
I'm hoping to use the STUSB4700 in a product design. The product needs to be supplied by normally by a tablet (only 5V @ 100mA required). Sometimes the product will have external power available and when it does, I want to source power to the tablet. Understanding the STUSB4700 is not a dual role, can I simply draw from Vbus for the sink scenario and then when external power is available, the STUSB4700 jumps into action and negotiates sourcing?
Ref page 21 application example of datasheet.