STMicroelectronics EVL250WMG1L Demonstration Board

STMicroelectronics EVL250WMG1L Demonstration Board is a resonant LLC converter dedicated to any industrial application where minimum size and high efficiency are required, based on the MasterGaN1L. Embedding a couple of GaN MOSFETs and a driver in the same package allows for the direct interface of any SMPS controller. Thanks to the GaN technology™ and the embedded driver, the converter can be designed with an operating frequency higher than that using conventional MOSFETs. The board has no heat sinks on the primary side and has significantly reduced dimensions; the power density is 34W/inch³. The high efficiency and small size make the board suitable when limited space is limited. Output power can be up to 250WA at 24V_DC. Converters come with overcurrent, short-circuit, and overvoltage protection. The input voltage monitoring allows the startup with correct sequencing of cascaded converters, preventing operation with too low input voltage. The STMicroelectronics EVL250WMG1L comprises a motherboard with the transformer and the primary controller and two small daughterboards: one on the primary side embeds the MasterGaN1L. In contrast, another on the secondary side has the SR controller SRK2001A and the MOSFETs.