TUSB321RWBR

The TUSB321 device can implement the Configuration Channel (CC) logic required by the Type-C ecosystem on the USB Type-C port. The TUSB321 device uses the CC pins to determine the connection status of the port and the cable direction, as well as perform role detection and Type-C current mode control. The TUSB321 device can be configured as a Downstream Facing Port (DFP), an Upstream Facing Port (UFP), or a Dual Role Port (DRP), making it an ideal choice for any application. According to the Type-C specification, when the TUSB321 device is configured as a DRP, it will be alternately configured as a DFP or a UFP. The CC logic block monitors the pull-up or pull-down resistors on the CC1 and CC2 pins to determine when a USB port is connected, the direction of the cable, and the detected role. The CC logic determines whether the Type-C current mode is default, medium, or high based on the detected role. This logic determines whether the port is successfully connected in the UFP and DRP modes by implementing VBUS detection. The device can operate over a wide power supply range and has low power consumption. The TUSB321 device is suitable for industrial and commercial temperature ranges.

Applications

• Host, device, and dual-role port applications
• Mobile phones
• Tablets and laptops
• USB peripherals

Key features

• USB Type-C Specification 1.1 backward compatible with USB Type-C Specification 1.0
• Current advertisement up to 3A via dedicated current mode pins
• Host only - Downstream Facing Port (DFP) (power source)
• Device only - Upstream Facing Port (UFP) (power sink)
• Dual Role Port - DRP
• USB port connection detection
• Cable orientation detection
• Role detection
• Type-C current mode advertisement and detection (default, medium, and high)
• VBUS detection
• VCONN support for active cables
• External switch cable detection