Texas Instruments 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 VBUS detection and discharge to implement a compliant USB Type-C port. The Texas Instruments TUSB422 integrates a 2.5W switch to provide VCONN power for an active cable. The device also provides a VCONN discharge function. The TUSB422 also supports USB Type-C optional features such as audio and debug accessories.
Features
- Supports USB Type-C 1.2 and Power Delivery (PD) specifications
- USB PD Phy with I2C Interface (TCPCi) supporting
- 5V to 24V power sourcing and sinking
- 2.5W 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
- 2.7V to 5.5V VDD supply voltage
- Low current consumption
- Industrial temperature range of –40°C to 85°C
Applications
- Smartphones
- Tablets, notebooks, desktops
- Wall charger, power banks
Simplified Schematic
Publicado: 2017-02-10
| Actualizado: 2022-03-29