STEVAL-ISA162V1 STMicroelectronics

STEVAL-ISA162V1 12 V/10 W quasi resonant flyback converter based on the VIPer25HD Data brief Description The STEVAL-ISA162V1 evaluation board implements an isolated flyback (12 V/0.84 A) 10 W wide-range mains developed for general- purpose applications. The core of the application is the VIPer25HD, a new off-line high voltage converter from the VIPerPlus family. The device is a high-voltage converter thatsmartl integrates an 800 V rugged power MOSFET with PWM current mode control. The main characteristics of the board are its small size, minimal BOM, high efficiency and low standby Features consumption. Extremely low consumption under Universal input mains range: 90 265 V , AC no-load conditions is ensured thanks to burst frequency: 50 60 Hz mode operation that reduces the average Output voltage: 12 V/0.84 A switching frequency and minimizes all frequency related losses. The VIPer25HD operates in quasi Very compact size resonant mode, a feature that helps it meet Quasi resonant operation standards for electromagnetic disturbance. The Standby mains consumption: < 35 mW at IC features high level protection including dual- 230 VAC level OCP, output overvoltage, short-circuit and Average efficiency: > 82% (compliant with thermal shutdown with hysteresis. After the CoC version 5, Tier 2) removal of a fault condition, the IC automatically EMI: in accordance with EN55022-Class-B restarts. April 2015 DocID027670 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ISA162V1 1 Schematic diagram Figure 1: STEVAL-ISA162V1 circuit schematic 2/4 DocID027670 Rev 1