Texas Instruments has released a USB power delivery (PD) PHY that enables a USB type-C port with the configuration channel (CC) logic needed for the USB Type-C ecosystems. The TUSB422 integrates the physical layer of the USB BMC PD protocol to allow up to 100W of power and support for alternate mode interfaces. An external microprocessor unit (MCU), containing USB type-C port manager (TCPM), can communicate with the device through an I2C interface.
The TUSB422 implements VBUS detection and discharge for the implementation of a compliant USB type-C port. It integrates a 2.5W switch to provide VCONN power for an active cable and also provides VCONN discharge function.