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TUSB322I: External resistor between VBUS and VBUS_DET

K.Hamamoto
Guru 12155 points

Part Number: TUSB322I

Hi

I have a question about the configuration of VBUS_DET pin.

Our configuration is as below,

In this case, the resistor at VBUS_DET is 900kohm as mentioned on the datasheet.

However the another device (USB3320) is required the resistor between VBUS and device pin as well. 

So, the impedance of between VBUS and VBUS_DET will be lower than 900kohm as is required on the datasheet .

How can we solve this issue such this case?

Regards,

Koji Hamamoto