Reference design reduces size of USB Type-C docking system

Audio, USB data, power and video support are provided by a multi-port USB Type-C and Power Delivery (PD) minidock reference design released by Texas Instruments.

The USB Type-C and Power Delivery Minidock with Video and Charging Support reference design (TIDA-01243) can be powered by a traditional power adapter, USB Type-C adapter or notebook computer. It provides a tested, verified plan for a 2.0 x 4.0inch dock, at least 50 percent smaller than existing docking solutions, claims the company.

At the core of the design is the TPS65982 USB Type-C and PD controller, which enables dual-role port USB Type-C functionality, capable of delivering 60W of power and supporting DisplayPort Alternate Mode and USB data transmission. There is also the TPS65986 USB Type-C and PD controller, HD3SS3212 SuperSpeed multiplexer, TUSB321 dual-role port controller and HD3SS460 Alternate Mode multiplexer, which work together to provide dual-role port capability for power, data and video transfer.

The design allows for autonomous PD negotiation for both source and sink, eliminating the need for an external microcontroller.

The minidock also supports USB 3.0 or 4K resolution video and digital audio through various output options.

For faster development, all ICs within the design are compliant with the current USB Type-C and PD standards. The design combines the company’s USB Type-C and PD-compliant ICs, including port controllers, data multiplexers, DC/DC converters, load switches, field-effect transistors (FETs), signal conditioners and circuit protection, designed to ease product selection and purchase.

The TI Designs reference design is available for download now. An evaluation module, USB-CTM-MINIDK-EVM can be used to evaluate and implement designs.


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