USB Type-C for Engineers: TI's Guide to Power Delivery, USB4 and 240W

Texas Instruments’ 74-page reference (updated November 2024) walks hardware engineers through the full USB Type-C system, from first principles to production designs. It explains how a single reversible connector now carries both data and power, and why that reversibility isn’t free: because the connector is nearly symmetric, designs need active electronics — configuration-channel (CC) logic for cable detection and orientation, plus SuperSpeed multiplexers — rather than passive wiring. Foundational chapters cover data-rate evolution (from 1.5 Mbps low speed up to 80 Gbps), the source/sink/dual-role power and data models, pinout and VCONN, and the practical question of when a dedicated USB Power Delivery (PD) controller is actually required.

The bulk of the book is the PD protocol and the high-speed signaling that rides on Type-C. It details power negotiation over the CC wires, data- and power-role swaps, and alternate modes such as DisplayPort and Thunderbolt, including the specific DFP_D/UFP_D pin assignments. Signal-integrity sections address USB 2.0, SuperSpeed startup negotiation, USB4 discovery, lane configuration, sideband channels and loss budgets, plus the newer eUSB2 embedded interface. A chapter on Extended Power Range (EPR) explains how PD 3.1 pushes delivery to 240W and the safety considerations that kick in above 100W.

The guide closes with applied block diagrams for common end products — laptops and industrial PCs, docking stations, Bluetooth speakers, Wi-Fi routers, and power tools — mapping each to its data and power requirements. Authored by TI engineers, it doubles as a vendor pitch for the company’s PD controllers, but functions as a solid system-level primer for anyone designing a USB-C port from scratch.