Catalog excerpts
DC/DC Converter URB1D_LMD-15WR3 & URB1D_LMD-20WR3 Series 15&20W, Ultra wide input isolated & regulated DC/DCconverter Patent Protection RoHS Ultra wide input voltage range (4:1) Enhanced isolation, isolation voltage: 2250VDC Operating temperature range: -40℃ to +85℃ Input Under-voltage Protection, Output short circuit, over-current, over–voltage protection Low ripple & noise EMI meet EN50121-3-2, without external components Meets requirements of railway standard EN50155 Meet the IEC60950, UL60950, EN60950 approval Reverse voltage protection available with A2S(Chassis mounting) or A4S(35mm DIN-Rail mounting) International standard pin-out URB1D_LMD-15WR3 series are isolated 15W DC-DC products with 4:1 input voltage. URB1D_LMD-20WR3 series are isolated 20W DC-DC products with 4:1 input voltage. Their feature efficiency up to 86%, 2250VDC isolation with Enhanced isolation, operating temperature of -40℃ to +85℃, Input Under-voltage Protection, Output short circuit, over-current, over–voltage protection.Railway vehicle electronic equipment widely used in 72V, 96V and 110V. Selection Guide Input Voltage (VDC) Output Output Voltage (VDC) Output Current (mA)(Max./Min.) Efficiency (%,Min./Typ.) @ Full Load Nominal (Range) Note: ①Series with suffix “H” are heat sink mounting; series with suffix “A2S” are chassis mounting,with suffix “A4S” are DIN-Rail mounting, for example URB1D05LMD-20WHR3A2S is chassis mounting of with heat sink, URB1D05LMD-20WR3A4S is DIN-Rail mounting of without heat sink; If the application has a higher requirement for heat dissipation, you can choose modules with heat sink; ②Absolute maximum rating without damage on the converter, but it isn't recommended; ③Efficiency is measured In nominal input voltage and rated output load;A2S (wiring) and A4S (rail) Model due to input reverse polarity protection, minimum efficiency greater than Min.-2 is qualified. Input Specifications Item Operating Conditions Input Current (full load / no-load) URB1D_LMD-20WR3 series, Nominal input voltage Reflected Ripple Current Nominal input voltage URB1D_LMD-15WR3 series, Nominal input voltage MORNSUN Guangzhou Science & Technology Co., Ltd.
Open the catalog to page 1MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 2 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 2DC/DC ConverterURB1D LMD-15WR3 & URB1D LMD-20WR3 Series Package Dimensions Temperature Derating Curve Without heatsink ith heatsi nk Temperature Derating Curve With heatsink 0 V ^Vin 120VWithout heatsink 120V<Vin^160V Without heatsink Operating Temperature(C) Operating Temperature, ExceptURB1D03/05LMD-20W(H)R3(A2S/A4S) URB1 D03LMD-20W(H)R3(A2S/A4S) Operating Temperature Operating Temperature(C) Temperature Derating Curve 120 -1— 100 o Operating Temperat ure(C) MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 3 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd....
Open the catalog to page 3DC/DC Converter URB1D_LMD-15WR3 & URB1D_LMD-20WR3 Series Design Reference 1. Typical application All the DC/DC converters of this series are tested according to the recommended circuit (see Fig. 2) before delivery. If it is required to further reduce input and output ripple, properly increase the input & output of additional capacitors Cin and Cout or select capacitors of low equivalent impedance provided that the capacitance is no larger than the max. capacitive load of the product. Fig. 3 Parameter description: Cin 27uF -100µF/250V Cout Refer to the Cout in Fig.2 Notes: Fig. 3 Cin please...
Open the catalog to page 44. It is not allowed to connect modules output in parallel to enlarge the power 5. For more information please find DC-DC converter application notes on www.mornsun-power.com MORNSUN*^ MORNSUN GUANGZHOU SCIGNCG & TGCHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 5 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation Trim application & Trim resistance Calculation formula of Trim resistance: Vo'-Vref Vref
Open the catalog to page 5DC/DC Converter URB1D_LMD-15WR3 & URB1D_LMD-20WR3 Series Horizontal Package (without heat sink) Dimensions and Recommended Layout Horizontal Package (with heatsink) Dimensions MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 6Function Ctrl Unit: mm[inch] Front View URB1 D_LMD-15WHR3A2S & URB1 D_LMD-20WHR3A2S (with heatsink) Dimensions THIRD ANGLE PROJECTION Unit: mm[inch] Front View MORNSUN GUANGZHOU SCI6NCG & TGCHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 7 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 7DC/DC Converter URB1D_LMD-15WR3 & URB1D_LMD-20WR3 Series URB1D_LMD-15WR3A4S & URB1D_LMD-20WR3A4S (without heatsink) Dimensions URB1D_LMD-15WHR3A4S & URB1D_LMD-20WHR3A4S (with heatsink) Dimensions MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 81. Packing information please refer to Product Packing Information which can be downloaded from www.mornsun-power.com.The Packing bag number of Horizontal package :58200035(without heat sink), 58200051(with heat sink), A2S/ A4S package number: 58220022; 2. The maximum capacitive load offered were tested at input voltage range and full load; 3. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25°C, humidity<75%RH with nominal input voltage and rated output load; 4. All index testing methods in this datasheet are based on Company's corporate...
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