TUSB422

• 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

All trademarks are the property of their respective owners.

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), 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. 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 compliant 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 TUSB422 is available in industrial temperature ranges.