TPS65982: Migrate to TI new USB-C PD chips

Steve Chang70

Part Number: TPS65982
Other Parts Discussed in Thread: TPS26750, TPS25751

Tool/software:

Hi Team,

We have a USB-C hub that uses the TPS65982 to charge an upstream notebook PC and provide 4 downstream ports. In this design, the TPS65982 acts as a source and provides 5 V / 12 V / 15 V / 20 V by switching the feedback resistors of a buck converter through its GPIO pins. It also controls the USB SuperSpeed MUX via a GPIO. These GPIO functions can be configured using the customization tool.

Could you recommend TI devices such as the TPS26750 for a similar application? From what I have seen, the web-based customization tool does not provide options to configure GPIO pins, and I am also unable to download a Windows offline version.

Steve

24 days ago

0 Tommy Lin 23 days ago

TI__Mastermind 31950 points

Hi,

Will this hub require USBPD compliance? how many type-C ports are on there and what DCDC is used here?

Regards

0 Steve Chang70 23 days ago

Prodigy 200 points

Hi Tommy,

No, it does not need to be USB PD compliant. We only use it for the upstream USB-C port, the oother 4 DFP ports are USB-A. We are using standard buck converters such as the Analog Devices LTC3854.

Best Regards,

Steve

0 Tommy Lin 22 days ago in reply to Steve Chang70

TI__Mastermind 31950 points

What is the UFP port capability you are looking for in terms of power and data? Are you looking for DisplayPort or other alternate modes?

0 Steve Chang70 20 days ago in reply to Tommy Lin

Prodigy 200 points

DisplayPort or alternate modes are not necessary, just USB data.

Steve

0 Tommy Lin 19 days ago in reply to Steve Chang70

TI__Mastermind 31950 points

Hi,

Up to USB3.2 Gen2x2 speed for USB data?

Regards

0 Steve Chang70 19 days ago in reply to Tommy Lin

Prodigy 200 points

Hi Tommy,

USB 3.2 Gen2x1 is sufficient. While USB 3.2 Gen2x2 is nice to have, it is not essential.

Best Regards,

Steve

0 Tommy Lin 18 days ago in reply to Steve Chang70

TI__Mastermind 31950 points

Let me assign this to our board market marketing to find a suitable device for you

Regards

0 Adrian Sacalxot-Berrios 17 days ago

TI__Prodigy 210 points

Hi Steve,

The TPS26750 is a DRP PD controller suited for EPR applications, the device recommended for standard power range is the TPS25751. Currently the TPS25751 GUI is not suited for source-only applications. However, we are working to enable a source-only functionality in a future release.

0 Steve Chang70 17 days ago in reply to Adrian Sacalxot-Berrios

Prodigy 200 points

Hi Tommy,

Please provide the reference design for both TPS26750 and TPS25751. Thank you!

Best Regards,

Steve

+1 Adrian Sacalxot-Berrios 16 days ago in reply to Steve Chang70

TI__Prodigy 210 points

Hi Steve,

Please visit attached TI.com links to see the reference designs for both.

TPS26750: https://www.ti.com/tool/PMP41115

TPS25751: https://www.ti.com/tool/PMP41083, https://www.ti.com/tool/PMP41062

Thank you,

Adrian Sacalxot-Berrios

Power management

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TPS65982: Migrate to TI new USB-C PD chips