STEVAL-ISA129V1 16 V - 280 mA non isolated off-line high voltage converter based on the VIPer16 Data brief reach very low standby consumption (< 50 mW at 265 Vac), while in the latter the IC is supplied by an internal current generator, thus eliminating the cost of the transformer auxiliary winding. • Protection features available include thermal shutdown with hysteresis and delayed overload protection. Features • Input voltage range VIN: 90 VRMS - 265 VRMS • Output voltage VOUT: 16 V • Max output current IOUT: 0.28 A • Precision of output regulation VOUT_LF: ±5% • High frequency output voltage ripple VOUT_HF: 50 mV • Max ambient operating temperature TA: 60 °C • RoHS compliant Description The STEVAL-ISA129V1 demonstration board is a 16 V - 280 mA application set in non isolated flyback topology using the VIPer16, a new off-line high voltage converter by STMicroelectronics. The VIPer16 features an 800 V avalanche rugged power section, PWM operation at 115 kHz with frequency jittering for lower EMI, limiting current with adjustable set point, on-board soft-start, and safe auto-restart after a fault condition. Moreover, the VIPer16 can work with or without the auxiliary winding. In the former case, it can April 2013 DocID024567 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 Schematic diagram 1 STEVAL-ISA129V1 Schematic diagram Figure 1. STEVAL-ISA129V1 circuit schematic $&, 1 ' / 7 5 & & ' & ' ' / 9287 & ' 5 ' - - &203 /,0 9,3 (5+1 9'' '5 $,1 & &21752/ 5 & *1' )% 5 5 & ' & & 5D 5E 2/4 DocID024567 Rev 1 5 & & STEVAL-ISA129V1 2 Revision history Revision history Table 1. Document revision history Date Revision 16-Apr-2013 1 Changes Initial release. DocID024567 Rev 1 3/4 STEVAL-ISA129V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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