TUSB320: USB 2.0, USB 3 and BC 1.2 compatible source

Part Number: TUSB320
Other Parts Discussed in Thread: BQ24392

Hi all

My customer wants to implement a USB 2.0, USB 3 and BC 1.2 compatible source.

Their accessory is using type-C on accessory side, and type-A on USB host (power source) side.

They would therefore limit current sinking at 2A or 3A maximum if Dedicated Charging Port is detected (D+ and D- lines short-circuited with 200 Ohms)

They would also limit current sinking at maximum 1.5A if Charging Downstream Port is detected and 500mA if Standard Port is detected.

What solution can you recommend ?

Best regards

over 7 years ago

0 Malik Barton57 over 7 years ago

TI__Guru 64326 points

Ue,

We are currently working on your issue and will reply as soon as possible.

0 Malik Barton57 over 7 years ago

TI__Guru 64326 points

Ue,

I am having trouble understanding your application, can you post a proposed block diagram of your application?

0 Ue over 7 years ago in reply to Malik Barton57

TI__Genius 17215 points

Hi Malik, hi all

Let me provide some links that might be helpful to implement a solution:

www.ti.com/.../TIDA-01602 Barrel Jack to USB C PD and USB Type-A to USB Type-C TIkit Reference Design
www.ti.com/.../BQ24392 SPST USB 2.0 High-Speed Switch With Battery Charging Detection
www.ti.com/.../TIDA-03030 USB Type-C™ Power-Path Protection With Audio Accessory Support Reference Design

Getting started with the TUSB320:
www.ti.com/.../tusb320-la-evm

Transition Existing Products from USB 2.0 OTG to USB Type-CTM www.ti.com/.../slly017.pdf

Best regards

Ue

0 Malik Barton57 over 7 years ago in reply to Ue

TI__Guru 64326 points

Ue,

BQ24392 and TUSB320 implemented as below may be close to what you desire however /I would read both datasheets to confirm this.

Interface

Interface forum

TUSB320: USB 2.0, USB 3 and BC 1.2 compatible source