STEVAL-ISA137V1 Demonstration board based on VIPer06 from the fixed-frequency VIPer™ plus family Data brief Description Top view The STEVAL-ISA137V1 demonstration board implements an isolated flyback (5 V / 0.6 A) 3 W wide-range mains developed for general-purpose applications. The core of the application is the VIPer06HS, a new offline 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. Bottom view The main characteristics of the demonstration 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 frequency-related losses. Features • Universal input mains range: 85 - 265 VAC, frequency: 50 - 60 Hz • Output voltage: 5 V / 0.6 A The VIPer06HS operates at fixed frequency, 115 kHz. Frequency jittering is implemented, enabling it to meet the standards for electromagnetic disturbance. Protection features on the device, such as delayed overload, open loop failure and hysteretic thermal protection, improve the reliability and safety of the design. • Very compact size • Standby mains consumption: < 30 mW at 230 VAC • Average efficiency: > 65% • EMI: in accordance with EN55022-Class-B • RoHS compliant June 2013 DocID024830 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 Schematic diagram 1 STEVAL-ISA137V1 Schematic diagram Figure 1. STEVAL-ISA137V1 circuit schematic 7 / $&, 1 P+ ' 6736/$ & / & X+ 9RXW & 5 N S) X) X) ' 9RXW 5 677+/$ ' / X+ %$7=) ,/ ,& & & 5 9,3(5+6 %5 X) X) 9'' N '5$,1 )% & 5 &21752/ N Q)< &203 50%6 /,0 *1' 5 5 & & ,& N & 6)+ 7 X) $&, 1 Q) & Q) 5 5 & N Q) Q) N 9 ' ,& 5 N 76 5 N 2/4 DocID024830 Rev 1 STEVAL-ISA137V1 2 Revision history Revision history Table 1. Document revision history Date Revision 19-Jun-2013 1 Changes Initial release. DocID024830 Rev 1 3/4 STEVAL-ISA137V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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