TUSB320: Functions

Yoshinobu Kagawa

Expert 2030 points

Part Number: TUSB320

1. Can the voltage and current supplied from the TYPE-C terminal of the PC ?
Customer assumes 5V/0.9A or 5V/1.5A.

2. Is it possible to detect when a product is connected to the PC's TYPE-A terminal?
TYPE-A/TYPE-C cables may be used.

3. Can TUSB320 detect that the current supplied from the TYPE-C terminal of the PC cannot be set?
Is there a notification if the PC can not be supplied even if it requests 5V/1.5A ?

Best regards,
Kagawa

over 5 years ago

0 Brian Zhou over 5 years ago

TI__Guru*** 146315 points

1:it's better to have separate power supply for TUSB320 to avoid back drive issue

2: no, current detect is communicated by CC pin.

3: TUSB320 can detect what pc advertised. you can read status with I2C

0 Yoshinobu Kagawa over 5 years ago in reply to Brian Zhou

Expert 2030 points

2: no, current detect is communicated by CC pin.

-->

TYPE-A USB3.0 does not have a CC terminal. Can the CPU check the progress of the reply?
Will you go with TUSB320?

0 Brian Zhou over 5 years ago in reply to Yoshinobu Kagawa

TI__Guru*** 146315 points

with type-A, it only has default current 500ma for usb2 and 900ma for usb3. TUSB320 can do much here.

Interface

Interface forum

TUSB320: Functions