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Tool/software:
Good day,
I am unsure what to do with some of the unused pins on the device. I will be using the device as a hub for USB signals without any VBUS requirements or power management. Is it okay to leave the unused power management pins unconnected?
Should I leave the USB_VBUS pin unconnected?
Should the TEST pin be left unconnected or tied to ground via a 4.7kΩ resistor?
What is the correct option for unused OVERCUR pins? The datasheet suggests leaving it unconnected, but the checklist suggests pulling it high via a 4.7kΩ resistor.
Kind regards,
Nicole
HI Nicole:
If you don't support power management , then FULLPOWERMENT should be high.
OVERCURR pull high as well.
TEST pin should be grounded .
USB_VBUS should be connected to 5V with 90k/1k, divider.
Best
Brian