TUSB422 USB PD TCPCi Port Controller

Texas Instruments TUSB422 USB PD TCPCi Port Controller enables a USB Type-C™ port with the Configuration Channel (CC) logic needed for USB Type-C ecosystems. It integrates the physical layer of the USB BMC power delivery (PD) protocol to allow up to 100W of power and support alternate mode interfaces. An external microprocessor containing USB Type-C Port Manager (TCPM) communicates with the TUSB422 through an I²C interface. Under control of the TCPM, TUSB422 uses the CC pins to determine port attach/detach, cable orientation, role detection, and port control for USB Type-C current mode. Depending on the application, the TUSB422 can be configured as DFP, UFP, or DRP. The TUSB422 implements V_BUS detection and discharge to implement a compliant USB Type-C port. The Texas Instruments TUSB422 integrates a 2.5W switch to provide V_CONN power for an active cable. The device also provides a V_CONN discharge function. The TUSB422 also supports USB Type-C optional features such as audio and debug accessories.