TUSB422 Datasheet | Texas Instruments

es - 1 Supports USB Type-C™ 1.2 and Power Delivery (PD) Specifications - USB PD Phy with I2C Interface (TCPCi) Supporting: - 5 - 24 V Power Sourcing and Sinking - 2.5 Watt VCONN switch - Alt Mode Negotiations - Optimized for Portable Applications with Autonomous Dual Role Port (DRP) Support - Software Configurable as Dedicated Host, Dedicated Device, or Dual-Role - DFP, UFP and DRP - Attach/Detach of USB port - Cable Orientation Detection - Current Mode Advertisement and Detection - Debug and Audio Accessory Support - Active Cable Detection - VCONN for Active Cable - Dead Battery Support - Integrated over-temperature sensing diode (OTSD) - VBUS Detect and Discharge Control - VDD Supply Voltage: 2.7 V - 5.5 V - Low Current Consumption - Industrial Temperature Range of - 40°C to 85°C 2 Applications - Smartphones - Tablets, Notebooks, Desktops - Wall Charger, Power Banks SPACER Simplified Schematic VCONN 3 Description TUSB422 is a USB PD PHY that 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 100-W of power and support for alternate mode interfaces. An external microprocessor, containing USB Type-C Port Manager (TCPM), municates 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. The TUSB422 can be configured as DFP, UFP, or DRP, depending on the application. The TUSB422 implements VBUS detection and discharge for the implementation of a pliant USB Type-C port. The TUSB422 integrates 2.5 Watt switch to provide VCONN power for an active cable. The device also provides VCONN discharge function. The TUSB422 also supports USB Type-C optional Features such as audio and debug accessory. The device operates over a wide supply-range and has low power consumption. The...