TUSB321: Typical application for UFP mode.

Kengo.Y

Part Number: TUSB321
Other Parts Discussed in Thread: TUSB320

Hi team,

My customer wants to use The TUSB321 for UFP mode.
Do you have a reference circuite for UFP mode?

Sincerely.
Kengo.

over 3 years ago

0 Brian Zhou over 3 years ago

TI__Guru** 104630 points

you can check TUSB320 datasheet for UPF application

0 Kengo.Y over 3 years ago in reply to Brian Zhou

Guru 10385 points

Hi Brian,

Thank you for your reply.

Could you check the processing of the pin?
because TUSB320 and 321 are different.

・VBUS_DET : Pull up 900kΩ to VBUS
・VCONN_FAULT：Open(no need current limit)
・PORT：Pull down 10kΩ to GND(UFP mode)
・CURRENT_MODE ：Open(UFP mode)
・ID：Open(UFP mode)
・DIR：Open(USB2.0)
・OUT1、OUT2：Pull up 10kΩ to VBUS(to MCU)

Sincerely.
Kengo.

0 Brian Zhou over 3 years ago in reply to Kengo.Y

TI__Guru** 104630 points

For tusb321, your schematic looks fine.

Interface

Interface forum

TUSB321: Typical application for UFP mode.