STMicroelectronics STUSB4500 standalone USB Type-C and power delivery controller

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STMicroelectronics’ STUSB4500 standalone USB Type-C and power delivery controller extends the convenience and environmental benefits that come with powering and charging from a standardised USB-C outlet to a wide variety of consumer, industrial and medical products. Optimised for sink-only applications powered through a USB-C cable, the product is a certified standalone USB PD controller that can be easily customised by the user to suit the application.

Based on default power profiles (PDO) loaded in an internal non-volatile memory, the IC implements proprietary algorithms to negotiate a power delivery contract with a source without any internal support (auto-run mode), making it suitable for automatic high-power-profile charging especially from a dead-battery power state. An application processor can then optionally and dynamically change product power profiles to force another negotiation.

The controller supports multiple options to manage multiple input power paths and irrelevant power sources. With this device onboard, numerous types of portable equipment from 15 to 100 W can replace a product-specific charger with a standard USB Type-C connection. These include toys, power tools, vacuum cleaners, office equipment, lighting products, smart speakers, medical devices and others. Equipment normally AC-powered through a captive mains cable, such as small kitchen appliances, can also become DC-powered to simplify product design, reduce size and weight, and allow the option of cordless battery-powered operation.

Saving individual dedicated chargers and power supplies by migrating to USB power delivery controlled by the device is said to enhance convenience and portability, and mitigate the environmental burden imposed by waste electrical equipment discarded with each product-upgrade cycle. More flexible charging options including fast-charging or charging multicell batteries above 5 V are also possible.

For more information: www.st.com/stusb4500-pr.