STEVAL-ISA129V1 STMicroelectronics

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 V ), while in the latter the IC is supplied by ac 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 V : 90 V - 265 V IN RMS RMS Output voltage V : 16 V OUT Max output current I : 0.28 A OUT Precision of output regulation V : 5% OUT LF High frequency output voltage ripple V : OUT HF 50 mV Max ambient operating temperature T : 60 C A 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 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4Schematic diagram STEVAL-ISA129V1 1 Schematic diagram Figure 1. STEVAL-ISA129V1 circuit schematic & , 1 5 & & & / 8 92 7 & & & 5 - - 1 + 5 ( 5 1 , 9 3 0 & &2152/7 /,0 5 & *1 )% 5 5 5 & & & 5 D 5 E 2/4 DocID024567 Rev 1 &2 9,3 7 /