EVLMG1-250WLLC DC/DC Resonant Converter

STMicroelectronics' EVLMG1-250WLLC is a resonant LLC converter dedicated to any industrial application based on MasterGaN1 where small size and high efficiency are required. This device embeds two GaN power transistors and a driver in the same package, allowing it to interface directly with any kind of SMPS controller. Thanks to the GaN technology and embedded driver, the converter can be designed with an operating frequency higher than conventional MOSFETs. The board has no heatsinks on the primary side and has significantly reduced dimensions; the power density is 20 W/inch³. The high efficiency and small size make the board suitable when available space is limited.

Output power up to 250 W at 24 VDC. Converters come with overcurrent, short-circuit, and overvoltage protection. The input voltage monitoring allows startup with the correct sequencing of cascade converters, preventing operation with too low input voltage.

Features

• Highly efficient and compact solution for DC/DC conversion using MasterGaN1
• Output voltage: 24 V
• Output power up to 250 W
• Nominal input voltage: 400 V ±10%
• Efficiency: >92%
• Based on MASTERGAN1, power system-in-package integrating half-bridge gate driver and high-voltage 650 V GaN transistors
• Outputs protected against short-circuit and overcurrent
• Input voltage monitor for correct sequencing as D2D converter and brown-out protection
• Compact footprint: 100 mm x 60 mm
• Maximum components height: 35 mm