STEVAL-ISA162V1

STEVAL-ISA162V1 12 V/10 W quasi resonant flyback converter based on the VIPer25HD Data brief Description Features        Universal input mains range: 90 – 265 VAC, frequency: 50 – 60 Hz Output voltage: 12 V/0.84 A Very compact size Quasi resonant operation Standby mains consumption: < 35 mW at 230 VAC Average efficiency: > 82% (compliant with CoC version 5, Tier 2) EMI: in accordance with EN55022-Class-B April 2015 The STEVAL-ISA162V1 evaluation board implements an isolated flyback (12 V/0.84 A) 10 W wide-range mains developed for generalpurpose 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 that "smartly" 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 consumption. Extremely low consumption under no-load conditions is ensured thanks to burst mode operation that reduces the average switching frequency and minimizes all frequency related losses. The VIPer25HD operates in quasi resonant mode, a feature that helps it meet standards for electromagnetic disturbance. The IC features high level protection including duallevel OCP, output overvoltage, short-circuit and thermal shutdown with hysteresis. After the removal of a fault condition, the IC automatically restarts. DocID027670 Rev 1 For further information contact your local STMicroelectronics sales office 1/4 www.st.com Schematic diagram 1 STEVAL-ISA162V1 Schematic diagram Figure 1: STEVAL-ISA162V1 circuit schematic 2/4 DocID027670 Rev 1 STEVAL-ISA162V1 2 Revision history Revision history Table 1: Document revision history Date Version 02-Apr-2015 Changes 1 DocID027670 Rev 1 Initial release. 3/4 STEVAL-ISA162V1 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2015 STMicroelectronics – All rights reserved 4/4 DocID027670 Rev 1