STEVAL-ISA113V1 Wide range single-output demonstration board based on the VIPER06HS Data brief Features Universal input mains range: input voltage 90 - 265 V AC frequency 45 - 65 Hz Single-output voltage: 12 V at 0.35 A continuous operation Standby mains consumption: < 30 mW at 230 V AC Average efficiency: > 74% STEVAL-ISA113V1 Fully protected against faults (overload, feedback disconnection and overheating) EMI: according to EN55022-Class-B RoHS compliant Description The STEVAL-ISA113V1 demonstration board is a 12 V-0.35 A power supply set in non-isolated flyback topology using the new VIPER06HS offline high-voltage converter by STMicroelectronics. The features of the device include an 800 V avalanche rugged power section, PWM operation at 115 kHz with frequency jittering for lower EMI, current limiting with adjustable set point, onboard soft-start, a safe auto-restart after a fault condition and a low standby power. The protection features available include a thermal shutdown with hysteresis, delayed overload protection, and open loop failure protection. January 2013 Doc ID 024140 Rev 1 1/11 For further information contact your local STMicroelectronics sales office. www.st.com 11Adapter features STEVAL-ISA113V1 1 Adapter features The electrical specifications are given in Table 1, the schematic in Figure 1, and the bill of material in Table 2. Table 1. Electrical specifications Parameter Symbol Value Input voltage range V 90 V 265 V IN AC AC Output voltage V 12 V OUT Max. output current I 0.35 A OUT Precision of output regulation V 5% OUT LF High frequency output voltage ripple V 50 mV OUT HF Max. ambient operating temperature T 60 C AMB Table 2. Bill of material Ref. Part Description Package Manufacturer 2.2 F, 400 V NHG series electrolytic Cin1 capacitor Cin2 4.7 F, 400 V AX series electrolytic capacitor Saxon CVDD 1 F, 50 V electrolytic capacitor 1206 Murata Cfilt1 100 nF, 50 V ceramic capacitor 0805 Cfilt2 Not mounted Cc 10 nF, 50 V ceramic capacitor 1206 Cp 1 nF, 50 V ceramic capacitor 1206 Cfb 1 nF, 50 V ceramic capacitor 0805 330 F, 16 V ZL series ultra-low ESR Cout Rubycon electrolytic cap. D0 MB6S 600 V, 1 A diode bridge TO-269AA Vishay D2 STPS2H100 100 V, 2 A power Schottky rectifier SMA ST Daux 1N4148W Surface mount fast switching diode SOD-123 Zetex R0 4.7 3/4 W resistor RLIM 15 k 5% 1/4 W resistor 0805 Rc 47 k 5% 1/4 W resistor 0805 RfbH1 33 k 1% 1/4 W resistor 0805 RfbH2 0 1206 RfbL1 12 k 1% 1/4 W resistor 1206 RfbL2 0.47 k 1% 1/4 W resistor 0805 2/11 Doc ID 024140 Rev 1