lpcware

USB0_VBUS connection for non-OTG devices?

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by suckfish on Wed Sep 26 16:05:26 MST 2012
What's the easiest way to connect USB0_VBUS using the LPC43xx for a non-OTG USB device?

The user guide says that the pin is not 5v tolerant when VDDIO is not powered, but doesn't make a specific suggestion for connecting the pin.

The board is usb-powered, so under normal conditions, VDDIO will actually come up with a few milliseconds of usb being connected.

Looking a the Hitex eval board schematics, it connects USB0_VBUS directly to the usb connector (via only a ferrite bead).

Cheers,
Ralph.

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