STEVAL-ISA023V2

STEVAL-ISA023V2 Flyback AC-DC converter evaluation board based on the VIPer53-E with 24 W negative output Data Brief Features Input voltage, Vin: from 90 to 265 V rms Negative output voltage: -5 V,-12 V Standby consumption: <1 W Total output power: 24 W EMI requirements: EN55022 Class B Safety: EN 60950 Description STEVAL-ISA023V2 This is an ideal solution for a 25 W switch mode power supply (SMPS) dedicated to industrial or white-goods applications. The board accepts a wide range of input voltages (90 to 265 Vrms) and delivers 2 negative output voltages. The switch- mode power supply(SMPS) is based on the VIPer53-E. The VIPer53-E combines an enhanced current-mode PWM controller with a high-voltage MDmesh Power MOSFET in the same package. The main characteristics of the evaluation board are its high efficiency and low standby consumption. These, combined with the minimal component count and global low cost approach, makes it an ideal solution for powering industrial or consumer equipment, while also meeting worldwide consumption requirements. December 2007 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Obsolete Product(s) - Obsolete Product(s)Board schematic STEVAL-ISA023V2 1 Board schematic Figure 1. Scheme 2/4 Obsolete Product(s) - Obsolete Product(s) C1C166 2.2.2nF2nF//YY11 D8D8 STPS2H100STPS2H100 L3L3 1 T1T1 10 + 0.0.1uH1uH 9 C9C9 D9D9 + 470uF470uF//25V25V RT1RT1 + C1C144 9.9.1V1V + 33uF33uF//35V35V 15R15R COCON2N2 8 D5D5 1.1.5KE150A5KE150A R1R100 10k10k 1 R6R6 R8R8 R1R111 C1C177 2 0 R1R1 D4D4 220R220R 0R0R 15k15k 470n470n C1C188 3 STPS1045DSTPS1045D C1C122 D1D1 R1R133 100n100n 4 1M1M + 100nF100nF STSTTTHH1R1R0606 D7D7 + 120R120R + Vin Vout F1F1 3 R9R9 U3U3 C1C100 R7R7 R1R122 C1C133 U4U4 2A2A L78L33L78L33 + TTL431L431 + C3C3 C1C111 220R220R 0R0R 15k15k + C1C1 C2C2 Q1Q1 4 68uF68uF//400V400V BCBC807-40807-40 COCON1N1 3.3.3uH3uH DD22 STSTPS1150PS1150 D6D6 STPS1045DSTPS1045D L2L2 1 D3D3 7 1 R2R2 C8C8 BARBAR1188 2 1M1M R3R3 120pF120pF 2 5.5.6k6k U1U1 VIVIPer 53DPer 53DIIPP Positive version only IInputnput 85 - 265VAC 85 - 265VAC 5 6 C7C7 2 Negative version only OSC 22uF22uF//35V35V R5R5 6 7.7.5k5k NC C4C4 C5C5 39nF39nF R4R4 5.5.1k1k R1R144 U2U2 1k1k C6C6 PCPC817817 150nF150nF tt 100nF100nF//275VAC275VAC//XX22 L1L1 20mH20mH//1A1A 100nF100nF//275VAC275VAC//XX22 -+-+ 4.4.7nF7nF//50V50V 8 TOVL 7 VDD 1 COMP 4 S 3 5 S D 3 4 2 1 1000uF1000uF//25V25V 1000uF1000uF//25V25V 470uF470uF//25V25V C1C155 100nF100nF GND