TITUSB321RWBR
Overview
The TUSB321RWBR is a USB Type-C Configuration Channel (CC) logic chip that enables port detection and control for Host, Device, and Dual-Role Port (DRP) applications. It handles the negotiation of USB Type-C roles and cable orientation while supporting VCONN for active cables. This small-footprint device operates within a 4.5V to 5.5V supply range and features a low active current consumption of approximately 100uA.
Why Choose This Part
The device's X2QFN package measures only 1.6mm x 1.6mm, making it one of the smallest CC controllers available for space-constrained designs. It offers an exceptionally low sleep current of 100uA and features integrated VBUS detection to ensure reliable power sequencing. Its support for up to 28V on certain pins provides extra protection against accidental shorts to VBUS in high-power USB-C environments.
Applications
Key Specifications
Getting Started
To evaluate this part, use the TUSB321EVM evaluation module which provides headers for CC, VBUS, and status pins. When designing the PCB, ensure the CC lines are routed with minimal capacitance to maintain signal integrity during discovery. The DIR pin can be used to control external high-speed muxes for routing USB data signals based on connector orientation.
Also Consider
STMicroelectronics
- A standalone sink-only controller that supports autonomous Power Delivery profile negotiation without an external MCU.
