VIPERGAN50 Advanced Quasi-Resonant Offline High-Voltage Converter

STMicroelectronics' VIPerGaN50 is a high-voltage converter, embedding a PWM controller and 650 V GaN power transistor, designed for flyback converters, capable of providing an output power up to 50 W. The quasi-resonant operation with the dynamic blanking time feature and the valley synchronization function reduces the switching losses and maximizes the overall efficiency at any input line and load condition. The advanced power management with the low quiescent helps to achieve low standby consumption. The feedforward compensation minimizes the input peak power variation over the entire input voltage range. The device supports secondary side regulation (SSR) flyback configuration with a standard optocoupler. It is available in QFN 5 x 6.