STMicroelectronics

The STUSB4500L is a USB Type-C controller that addresses 5 V-only sink devices up to 3 A (15 W max.). This device supports dead battery mode and is suited for sink devices powered from dead battery state. It is able to operate without any external software support for quick application power-on and immediate charging process start. At type-C connection, the STUSB4500L seeks CC pin for SOURCE termination and monitors VBUSvoltage in order to protect the application from an incorrect SOURCE operation. When VBUSis within the appropriate range, the STUSB4500L powers the application by closing the input switch. The available current advertised by the SOURCE is reported to the application in order to align the sinking current. Port status can be optionally monitored by the software through I²C interface. Thanks to its 20 V technology, it implements high voltage features to protect the CC pins against short-circuits to VBUS.

The STUSB4761 addresses USB type-C and Power Delivery provider devices. Thanks to default parameters stored in an internal non-volatile-memory, the STUSB4761 implements up to 5 PDOs in order to negotiate autonomously a Power Delivery contract with a sink without any internal or external software (autorun mode). A CC/CV regulation loop allows a fully regulated power management unit (AC/DC) to be implemented with a minimum BOM cost.