TUSB4041I: Unused downstream port

Naizeng Wang

Part Number: TUSB4041I

Tool/software:

Hi team,

If customer don't use USB_DP_DN1 and USB_DM_DN1, normally they will keep them float. But due to some reason, they need to connect it to GND by 100k resistor. Is that OK?

Nison Wang

3 days ago

0 Brian Zhou 3 days ago

TI__Guru** 112420 points

Hi Nison:

Customer can pulldown with 15K on unused DP/DM

Regards

Brian

0 Naizeng Wang 2 days ago in reply to Brian Zhou

TI__Expert 4050 points

Hi Brian，

Can cusotmer use 100k？The resistor cannot be changed to 15k.

0 Brian Zhou 2 days ago in reply to Naizeng Wang

TI__Guru** 112420 points

I will check if it's ok or not with 100k.

Regards

Brian

0 Brian Zhou 1 day ago in reply to Brian Zhou

TI__Guru** 112420 points

Yes, 100k to Gnd for unused port should be fine.

Regards

brian

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TUSB4041I: Unused downstream port