The ABH50-1012 AC-DC open frame power supply features a wide universal AC input range of 85 V 264 V for 12 V outputs, offering 50 W of output power in a compact footprint. This high efficiency quasi-resonant flyback converter is based on Infineon ICE680 and meets DOE requirements for stand by power and Class B EMI with Margin. These power supplies are ideal for medical, telecom, datacom, industrial equipment and other applications. 12 V outputs Output Power 50 W High Efficiency Dimensions 2.5 x 5.0 x 1.35 in Synchronous rectified output using IR1161 Saves over 3 W 40 W with break-even cost compared to diode and heatsink Battery charging Driving LED strings Starting small electric motors 2 ABH50-1012 MODEL OUTPUT INPUT MAX. OUTPUT MAX. OUTPUT TYPICAL NUMBER VOLTAGE VOLTAGE CURRENT POWER EFFICIENCY ABH50-1012 12 VDC 85~264 VAC 4.2 A 50.4 W 90% All specifications are typical at 25C unless otherwise stated. PARAMETER DESCRIPTION MIN TYP MAX UNIT Operating Input Voltage 85 100-240 264 V Input Frequency Range 47 - 63 Hz Vin = 110 V, Full Load - - 1 A Input Current Vin = 230 V, Full Load - - 0.6 A Cold start at 25C ambient, Inrush Current - - 13 A Vin = 230 VAC / 50 Hz Standby Power - - 0.15 W Leakage Current - - 5.0 mA Turn-on Voltage Threshold Io = 50% Iomax 75 83 89 VAC Io = 50% Iomax Turn-off Voltage Threshold 66 70 75 VAC All specifications are typical at nominal input, full load at 25C unless otherwise stated. PARAMETER DESCRIPTION MIN TYP MAX UNIT Full load 11.6 12 12.2 Output Voltage V No Load 12 13 13.3 Load Regulation - - 5 % Line Regulation - - 1 % Output Ripple and Noise (Pk-Pk) - - 100 mV Output Ripple and Noise (RMS) - - 50 mV Output Current Range 0 - 4.2 A Output Current Limit 4.3 - 6 A Start-up Time - - 1100 ms Hold up Time Vin = 115 VAC 5 - - ms Overshoot at Turn on - 0 5 ms Transient Response V 50%~100% of Max Load - 150 250 mV Settling Time - - 2000 s V100%~50% of Max Load - 150 250 mV Settling Time - - 2000 s tech.support psbel.com