STEVAL-ISA136V1 3W, 5V output, isolated flyback converter using VIPer™ Plus VIPER06HN Data brief Description The STEVAL-ISA136V1 evaluation board implements a 5 V / 0.6 A isolated flyback 3 W wide-range mains developed for general-purpose applications. The core of the application is the VIPER06HN, a new off-line high voltage converter from the VIPer plus family. The IC combines a high-performance low-voltage PWM controller chip and an 800 V, avalancherugged power MOSFET in the same package. Features • Universal input mains range: 85 - 265 VAC frequency: 50 - 60 Hz • Output voltage: 5 V / 0.6 A • Very compact size • Stand-by mains consumption: < 30 mW at 230 VAC • Min active mode efficiency ηAV=66.89% • EMI: according to EN55022-Class-B • RoHS compliant May 2014 The main characteristics of the board are its small size, high efficiency and low standby consumption. Extremely low consumption under no-load conditions is ensured thanks to burst mode operation, which reduces the average switching frequency and minimizes all frequencyrelated losses. The VIPER06HN operates at fixed frequency (115 kHz). Frequency jittering is implemented, helping it to meet electromagnetic disturbance standards. The device is equipped with protection features, such as delayed overload, open-loop failure and hysteretic thermal protection, which improve the reliability and safety of a design. DocID024740 Rev 2 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 Schematic diagram 1 STEVAL-ISA136V1 Schematic diagram Figure 1. STEVAL-ISA136V1 circuit schematic 2/4 DocID024740 Rev 2 STEVAL-ISA136V1 2 Revision history Revision history Table 1. Document revision history Date Revision Changes 19-Jul-2013 1 Initial release. 08-May-2014 2 Cover image, Figure 1 and title have been updated. 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