DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series 20W isolated DC-DC converter Ultra-wide input and regulated dual / single output FEATURES Ultra-wide 4:1 input voltage range High efficiency up to 90% No-load power consumption as low as 0.15W I/O isolation test voltage1.5k VDC Input under-voltage protection, output short-circuit, over-voltage, over-current protection Operating ambient temperature range: -40 to +85 CISPR32/EN55032 CLASS A EMI compliant without external components Six-sided metal shielded package Input reverse polarity protection available with Chassis (A2S) or 35mm DIN-Rail mounting (A4S) version IEC60950, UL60950, EN60950 approved Meets EN50155 railway standard CB Patent Protection RoHS URA_LD-20WR3 & URB_LD-20WR3 series of isolated 20W DC-DC products with a 4:1 input voltage range. They feature efficiencies of up to 90%, 1500VDC input to output isolation, operating ambient temperature range of -40 to +85, input under-voltage protection, output short-circuit, over-voltage, over-current protection. They meet CLASS A of CISPR32/EN55032 EMI standards without external components, optional packages are offered for chassis or DIN-rail mounting (A2S, A4S), adding additional input reverse polarity protection and they are widely used in applications such as data transmission device, battery power supplies, telecommunication device, distributed power supply system, hybrid module system, remote control system, industrial robot system and railway fields. Selection Guide Certification Voltage (VDC) Current (mA) Max./Min. Full Load Efficiency (%) Min./Typ. Max. Capacitive Load(F) URA2405LD-20WR3 5 2000/0 84/86 4800 URA2409LD-20WR3 9 1111/0 86/88 1000 URA2412LD-20WR3 12 834/0 86/88 800 URA2415LD-20WR3 15 667/0 86/88 625 URB2403LD-20WR3 3.3 5000/0 84/86 10000 5 4000/0 86/88 10000 URB2409LD-20WR3 9 2222/0 87/89 4700 URB2412LD-20WR3 12 1667/0 87/89 1600 URB2415LD-20WR3 15 1333/0 88/90 1000 Part No. Input Voltage (VDC) URB2405LD-20WR3 UL/CE/CB Nominal (Range) 24 (9-36) Max. 40 Output URB2424LD-20WR3 24 834/0 88/90 500 URA4805LD-20WR3 5 2000/0 84/86 4800 URA4812LD-20WR3 12 834/0 86/88 800 URA4815LD-20WR3 15 667/0 87/89 625 URB4803LD-20WR3 3.3 5000/0 84/86 10000 5 4000/0 84/86 10000 URB4805LD-20WR3 URB4809LD-20WR3 48 (18-75) 80 9 2222/0 87/89 4700 URB4812LD-20WR3 12 1667/0 85/87 1600 URB4815LD-20WR3 15 1333/0 88/90 1000 URB4824LD-20WR3 24 834/0 86/88 500 Notes Use "H" suffix for heat sink mounting, "A2S" suffix for chassis mounting and "A4S" suffix for DIN-Rail mounting. We recommend to choose modules with a heat sink for enhanced heat dissipation and applications with extreme temperature requirements; Exceeding the maximum input voltage may cause permanent damage; 2019.11.14-B/5 Page 1 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series Efficiency is measured at nominal input voltage and rated output load; efficiencies for A2S and A4S Model's is decreased by 2% due to the input reverse polarity protection circuit; The capacitive loads of positive and negative outputs are identical. Input Specifications Item Operating Conditions Min. Typ. Max. 3.3V output -- 799/40 818/45 5V output -- 969/40 993/80 Others -- 947/6 969/10 3.3V output -- 400/20 409/25 5V output -- 485/20 497/60 Others -- 474/5 485/9 -- 30 -- 48VDC input -- 30 -- 24VDC input -0.7 -- 50 48VDC input -0.7 -- 100 24VDC input 24VDC input Input Current (full load / no-load) 48VDC input Reflected Ripple Current Surge Voltage (1sec. max.) Start-up Voltage Under-Voltage Shutdown Start-up Time 24VDC input -- -- 9 48VDC input -- -- 18 24VDC input 5.5 6.5 -- 48VDC input 12 15.5 -- -- 10 -- Nominal input & constant resistance load Input Filter Unit mA VDC ms Pi filter Ctrl * Module on Ctrl pin open or pulled high (3.5-12VDC) Module off Ctrl pin pulled low to GND (0-1.2VDC) Input current when off -- 4 Hot Plug 7 mA Unavailable Note: *The Ctrl pin voltage is referenced to input GND. Output Specifications Item Min. Typ. Max. Voltage Accuracy Operating Conditions 0%-100% load -- 1 3 Linear Regulation Input voltage variation from low to Positive Output high at full load Negative Output -- 0.2 0.5 Load Regulation Cross Regulation Transient Recovery Time -- 0.5 1 Positive Output -- 0.5 1 Negative Output -- 0.5 1.5 -- -- 5 -- 300 500 3.3V/5V/5V output -- 5 8 Others -- 3 5 -- 0.03 %/ Mv p-p 5%-100% load Dual output with Positive output at 50% load and Negative output from 10%-100% load Transient Response Deviation 25% load step change, nominal input voltage Temperature Coefficient Full load -- Ripple & Noise 20MHz bandwidth, 5%-100% load -- 50 100 -- 10 -- 110 -- 160 110 -- 190 Trim Over-voltage Protection Over-current Protection Short-- circuit Protection Input voltage range Unit % s % %Vo %Io Hiccup, continuous, self-recovery Note: Output voltage accuracy of 5VDC/9VDC output converter for 0%-5% load is 5% max; Load regulation for 0%-100% load is 5%; Ripple & Noise at 5% load is 5%Vo. Max. The "parallel cable" method is used for Ripple and Noise test, please refer to DC-DC Converter Application Notes for specific information. 2019.11.14-B/5 Page 2 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series General Specifications Item Operating Conditions Min. Typ. Max. Unit Isolation Input-output Electric Strength test for 1 minute with a leakage current of 1mA max. 1500 -- -- VDC Insulation Resistance Input-output resistance at 500VDC 1000 -- -- M Isolation Capacitance Input-output capacitance at 100KHz/0.1V URB2424LD-20WR3 -- 2050 -- Others -- 1050 -- Operating Temperature See Fig. 1 -40 -- +85 -55 -- +125 Storage Temperature pF Storage Humidity Non-condensing 5 -- 95 %RH Pin Soldering Resistance Temperature Soldering spot is 1.5mm away from case for 10 seconds -- -- 300 Vibration IEC/EN61373 - Category 1, Grade B Switching Frequency* PWM mode MTBF MIL-HDBK-217F@25 -- 270 -- KHz 1000 -- -- K hours Note:*Switching frequency is measured at full load. The module reduces the switching frequency for light load (below 50%) efficiency improvement. Mechanical Specifications Case Material Dimensions Weight Cooling Method Aluminum alloy Horizontal package (without heat sink) 50.80 x 25.40 x 11.80 mm Horizontal package (with heat sink) 51.40 x 26.20 x 16.50mm A2S chassis mounting (without heat sink) 76.00 x 31.50 x 21.20 mm A2S chassis mounting (with heat sink) 76.00 x 31.50 x 25.30 mm A4S Din-rail mounting (without heat sink) 76.00 x 31.50 x 25.80 mm A4S Din-rail mounting (with heat sink) 76.00 x 31.50 x 29.90 mm Without heat sink Horizontal package/A2S chassis mounting/A4S Din-rail mounting 25.0g/48.0g/68.0g(Typ.) With heat sink Horizontal package/A2S chassis mounting/A4S Din-rail mounting 34.0g/56.0g/76.0g(Typ.) Free air convection Electromagnetic Compatibility (EMC) CLASS A (without external components)/ CLASS B (see Fig.3- for recommended circuit) CLASS A (without external components)/ CLASS B (see Fig.3- for recommended circuit) CE CISPR32/EN55032 RE CISPR32/EN55032 ESD IEC/EN61000-4-2 Contact 4KV perf. Criteria B RS IEC/EN61000-4-3 10V/m perf. Criteria A EFT IEC/EN61000-4-4 2KV (see Fig.3- for recommended circuit) perf. Criteria B Surge IEC/EN61000-4-5 line to line 2KV (see Fig.3-for recommended circuit) perf. Criteria B CS IEC/EN61000-4-6 3 Vr.m.s perf. Criteria A Voltage dips, short interruptions and voltage variations immunity IEC/EN61000-4-29 0%, 70% perf. Criteria B Emissions Immunity Electromagnetic Compatibility (EMC) (EN50155) CE Emissions RE Immunity EN50121-3-2 EN55016-2-1 EN50121-3-2 EN55016-2-1 150kHz-500kHz 500kHz-30MHz 30MHz-230MHz 230MHz-1GHz 99dBuV (see Fig.3- for recommended circuit) 93dBuV (see Fig.3- for recommended circuit) 40dBuV/m at 10m (see Fig.3- for recommended circuit) 47dBuV/m at 10m (see Fig.3- for recommended circuit) ESD EN50121-3-2 Contact 6KV/Air 8KV perf. Criteria A RS EN50121-3-2 20V/m perf. Criteria A EFT EN50121-3-2 2kV 5/50ns Surge EN50121-3-2 circuit) 5kHz (see Fig.3- for recommended circuit) line to line 1KV (42, 0.5F) (see Fig.3- for recommended 2019.11.14-B/5 perf. Criteria A perf. Criteria A Page 3 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series Immunity CS EN50121-3-2 0.15MHz-80MHz 10V r.m.s perf. Criteria A Ou tpu t Power Percentage(%) Typical Characteristic Curves Temperatur e Der atin g Cur ve 120 100 80 60 wi thout heats ink Safe Operatin g A rea wi th hea ts ink 40 20 0 - 40 0 40 7175 85 120 Operating Temperatur e( ) Fig. 1 2019.11.14-B/5 Page 4 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series Design Reference 1. Typical application All the DC/DC converters of this series are tested before delivery using the recommended circuit shown in Fig. 2. Input and/or output ripple can be further reduced by appropriately increasing the input & output capacitor values Cin and Cout and/or by selecting capacitors with a low ESR (equivalent series resistance). Also make sure that the capacitance is not exceeding the specified max. capacitive load value of the product. Dual Vin Cin DC DC GND +Vo Cout 0V Cout -Vo Single Vin Single Vout (VDC) Cout (F) 3.3/5 470 +Vo Cin DC DC 9/12/15 220 24 100 Cout Cin (F) Dual Vout (VDC) 5 100 9/12/15 -- Cout (F) Cin (F) 220 100 100 -- 0V GND Fig. 2 2. EMC compliance circuit Dual Parameter description Model Vin:24V FUSE Single Vin:48V Choose according to actual input current C0, C3 330F/50V 330F/100V C1 1F/50V 1F/100V C2 Refer to the Cout in Fig.2 LDM1 4.7H/3.1A CY1, CY2 1nF/2KV Fig. 3 Notes: Part in the Fig. 3 is used for EMC test and part for EMI test 3. Trim Function for Output Voltage Adjustment (open if unused) Vo' Vo' R1 R2 RT R1 R3 V r ef Trim V r ef RT R3 Trim R2 0V 0V Trim up Trim down TRIM resistor connection (dashed line shows internal resistor network) Calculating Trim resistor values: up: R T = aR 2 R 2 -a -R 3 a= Vref R1 Vo'-Vref down : R T = aR 1 R 1 -a -R 3 a= Vo'-Vref R2 Vref RT= Trim Resistor value; a= self-defined parameter. 2019.11.14-B/5 Page 5 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series Vout(V) R1(K) R2(K) R3(K) Vref(V) 3.3 4.801 2.87 12.4 1.24 5 2.883 2.87 10 2.5 9 7.500 2.87 15 2.5 12 11.000 2.87 15 2.5 15 14.494 2.87 15 2.5 24 24.872 2.87 17.8 2.5 4. The products do not support parallel connection of their output 5. For additional information please refer to DC-DC converter application notes on www.mornsun-power.com Horizontal Package (without heat sink) Dimensions and Recommended Layout 2019.11.14-B/5 Page 6 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series Horizontal Package (with heat sink) Dimensions URA_LD-20WR3A2S & URB_LD-20WR3A2S(without heat sink) Dimensions 2019.11.14-B/5 Page 7 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series URA_LD-20WHR3A2S & URB_LD-20WHR3A2S(with heat sink) Dimensions URA_LD-20WR3A4S & URB_LD-20WR3A4S(without heat sink) Dimensions 2019.11.14-B/5 Page 8 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series URA_LD-20WHR3A4S & URB_LD-20WHR3A4S(with heat sink) Dimensions Notes: 1. For additional information on Product Packaging please refer to www.mornsun-power.com. The Packaging bag number of Horizontal packaging: 58200035(without heat sink), 58200051(with heat sink), A2S/ A4S packaging 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, humidity<75%RH with nominal input voltage and rated output load; 4. All index testing methods in this datasheet are based on company corporate standards; 5. We can provide product customization service, please contact our technicians directly for specific information; 6. Products are related to laws and regulations: see "Features" and "EMC"; 7. Our products shall be classified according to ISO14001 and related environmental laws and regulations, and shall be handled by qualified units. Mornsun Guangzhou Science & Technology Co., Ltd. Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Huangpu District, Guangzhou, P. R. China Tel: 86-20-38601850 Fax: 86-20-38601272 E-mail:info@mornsun.cn www.mornsun-power.com 2019.11.14-B/5 Page 9 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation