URB1D_LD-20WR3
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Catalog excerpts

URB1D_LD-20WR3 - 1

URB1D_LD-20WR3 Series 20W, Ultra wide input isolated & regulated DC/DC converter Patent Protection RoHS FEATURES • Ultra wide input voltage range (4:1) • Enhanced isolation, isolation voltage: 2250VDC • Operating temperature range: -40°C to +85°C • Input Under-voltage Protection, Output short circuit, over-current, over-voltage protection • Low ripple & noise • EMI meet EN50121 -3-2 & CISPR22/EN55022 CLASS A, 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_LD-20WR3 series are isolated 20W DC-DC products with 41 input voltage. Their feature efficiency up to 87%, 2250VDCisoiation with enhanced isolation, operating temperature of-40oC to +85 °C, input Under-voltage Protection, Output short circuit, over-current, over-voltage protection. Railway vehicle electronic equipment widely usedin 72V, 96V and 170V Note: ©Series with suffix "H" are heat sink mounting; series with suffix "A2S" are chassis mounting, with suffix "A4S" are DIN-Rail mounting, for example URB1D05LD-20WHR3A2S is chassis mounting of with heat sink, URB1D05LD-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; ©Absolute maximum rating without damage on the converter, but it isn't recommended; ©Efficiency 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 Note: * the voltage of Ctrl pin is relative to input pin GND. MORNSUN GUANGZHOU 5CIGNCG & TGCHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretat

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URB1D_LD-20WR3 - 2

DC/DC ConverterURB1 D_LD-20WR3 SeriesOutput Specifications General Specifications Note: * 0%-5% load ripple&Noise is no more than 5%Vo.Ripple and noise are measured by "parallel cable" method, please see DC-DC Converter Application Notes for specific operation. MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 2 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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URB1D_LD-20WR3 - 3

Product Characteristic Curve Operating Temperature(C) Operating Temperature, Except URB1D03/05LD-20W(H)R3(A2S/A4S) Temperature Derating Curve Temperature Derating Curve With heatsink 40V^Vin^120VWithout heatsink 20V<Vin^160VWithout heatsink Temperature Derating Curve Operating Temperature(C) MORNSUN MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 3 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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URB1D_LD-20WR3 - 4

DC/DC ConverterURB1D LD-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. 2. EMC module solution-recommended circuit MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 4 of 8 MORNSUN...

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URB1D_LD-20WR3 - 5

DC/DC ConverterURB1 D_LD-20WR3 Series3. Trim application & Trim resistance +Vot +Vot Calculation formula of Trim resistance: Vref Vo'-Vref Vo'-Vref Vref Trim up Trim down Application circuit for TRIM (Part in broken line is the interior of models) Note: Leave open if not used. Rt: Resistance of Trim. a: User-defined parameter, no actual meanings. MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 5 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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URB1D_LD-20WR3 - 6

Heat Sink Front View Bottom View THIRD ANGLE PROJECTION URB1 D_LD-20WR3A2S (without heatsink) Dimensions THIRD ANGLE PROJECTION Unit: mm[inch] Front View MORNSUN GUANGZHOU SCI6NCG & TECHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 6 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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URB1D_LD-20WR3 - 7

THIRD ANGLE PROJECTION Unit: mm[inch] Front View THIRD ANGLE PROJECTION Front View Unit: mm[inch] MORNSUN MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. 2016.11.03-A/0 Page 7 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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URB1D_LD-20WR3 - 8

URB1D LD-20WR3 SeriesURB1D_LD-20WHR3A4S (with heatsink) Dimensions LED lamp THIRD ANGLE PROJECTION-^ 76.00 [2.992] 61.60 [2.425] Top View Front View Unit: mm[inch] 1. 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...

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