en.Wedoany.com Reported - STMicroelectronics has launched two 100W VIPerGaN high-voltage converters in Switzerland, integrating Gallium Nitride (GaN) technology and designed specifically for consumer electronics applications such as home appliances, building automation, smart lighting, and chargers. The new devices aim to enhance energy efficiency, achieving higher power density and thermal performance in a compact design.
The series includes the VIPerGaN100W (with a drain current limit of 3.5A) and the VIPerGaN100WB (supporting 4.2A current and handling 125W peak loads), which can avoid power supply over-design and are suitable for inductive load systems such as motors or solenoid valves. Both support 85V to 265V AC input and deliver 100W output at 185V. Each converter integrates a 700V GaN power transistor with low on-resistance, housed in a 5mm×6mm QFN package, combining the power switch, gate driver, and flyback controller to simplify design.
GaN technology enables high switching frequencies, reducing the size of passive components. The reference design EVLVIPGAN100WP is used for a 100W USB Type-C PD adapter, achieving a peak efficiency of over 92% and a power density of 24 W/in³. The converter employs quasi-resonant mode and zero-voltage switching to optimize efficiency across loads; frequency foldback at light loads and valley-skipping control at medium loads ensure stable, quiet operation; burst mode at no-load reduces power consumption to below 30mW. Other features include line voltage feedforward, dynamic blanking time, and overvoltage, overtemperature, and power supply anomaly protection.
The VIPerGaN100W and VIPerGaN100WB are now available through STMicroelectronics' distribution channels, supporting the development of efficient and compact power supply solutions. This GaN flyback converter series, with its high integration and wide input range, offers designers flexible choices.
This article is compiled by Wedoany. All AI citations must indicate the source as "Wedoany". If there is any infringement or other issues, please notify us promptly, and we will modify or delete it accordingly. Email: news@wedoany.com
