FUSB303 USB Type-C™ Port Controllers onsemi FUSB303 USB Type-C™ Port Controller is a fully autonomous USB Type-C™ controller optimized for 15W or lower applications. The device offers CC logic detection for source port, sink port, DRP, accessory detection support, and dead battery support as defined in USB−C specifications. The FUSB303 features configurable address I2C access to support multiple ports per system and operates autonomously using a pin configuration. The FUSB303 features ultra-low power during operation and comes in an ultra-thin, 12-lead QFN package.