STEVAL-ISA179V1 STMicroelectronics

S T E VA L - I S A 1 7 9 V 1 15 V, 0.15 A buck converter using VIPer Plus VIPer0P Data brief Description The STEVAL-ISA179V1 evaluation board implements a wide mains range buck converter (15 V / 0.15 A), developed for general purpose applications. The core of the application is the new VIPer0P off-line high voltage converter of the VIPerPlus family, featuring the Zero Power characteristic. The device is a high-voltage converter that intelligently integrates an 800 V rugged power MOSFET with PWM current-mode control. The evaluation board features a single layer design, small size, minimal BOM, high efficiency and low standby consumption. Features Universal AC main input voltage range: 85 VAC to 265 VAC Output range: 15 V / 0.15 A Rated output power: 2.25 W Input power in standby 230 VAC: less than 40 mW Active mode efficiency: greater than 77% EMI: EN55022-Class-B compliant RoHS compliant March 2016 DocID029097 Rev 1 1/1 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ISA179V1 1 Schematic diagram Figure 1: STEVAL-ISA179V1 circuit schematic GSPG0903161600SG 2/2 DocID029097 Rev 1 D3 BAT41ZFILM IC1 VIPER0PL 16 1 D5 Drain PGND C10 L1 15 4 R1 STTH1L06 Drain SGND 220nF 1mH 10 D1 14 M 2 Drain MRA 4007 13 2 1 2 2 Drain EAGND M1 L2 C9 470uH 1 1 220pF + + 8 OFF 2 D4 C1 C2 C11 3 7 STTH1L06 4.7uF 400V 4.7uF 400V Vcc ON 220uF 25V R5 C8 15k Ruby con ZL 220pF + C4 C3 100nF 2.2uF R4 15k D2 M RA 4007 R6 130k R3 R2 C7 12k 8.2k 1nF C6 not mount ed C5 not mount ed 5 FB 6 COMP