DC/DC Converter VRB_LD-15WR3 Series FEATURES 15W isolated DC-DC converter, Wide input and regulated single output Wide 2:1 input voltage range High efficiency up to 90% No-load power consumption as low as 0.12W I/O isolation test voltage 1.5K VDC Input under-voltage protection, output short-circuit, over-current, over-voltage protection Operating ambient temperature range: -40 ~ +85 Meets CISPR32/EN55032 CLASS A, without extra components Six-sided metal shielding package Input reverse polarity protection available with chassis (A2S) or 35mm Din-rail mounting (A4S) version CB Patent Protection IEC60950/UL60950/EN60950 approved RoHS VRB_LD-15WR3 series of isolated 15W DC-DC products with a 2:1 input voltage range. They feature efficiencies of up to 90%, 1500VDC input to output isolation, operating ambient temperature range of -40 ~ +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, tele-comunication device, distributed power supply system, hybrid module system, remote control system, industrial robot system fields. Selection Guide Input Voltage (VDC) Certification UL/CE/CB Output Voltage (VDC) Current (mA) Max./Min. Full Load Efficiency(%) Min./Typ. VRB2405LD-15WR3 5 3000/0 87/89 4700 VRB2412LD-15WR3 12 1250/0 87/89 1000 15 1000/0 87/89 820 24 625/0 88/90 270 VRB4803LD-15WR3 3.3 4000/0 81/83 4700 VRB4805LD-15WR3 5 3000/0 86/88 4700 12 1250/0 86/88 1000 15 1000/0 87/89 820 24 625/0 87/89 270 Part No. VRB2415LD-15WR3 Nominal (Range) 24 (18-36) Max. 40 VRB2424LD-15WR3 -- UL/CE/CB VRB4812LD-15WR3 VRB4815LD-15WR3 48 (36-75) 80 VRB4824LD-15WR3 Max. Capacitive Load(F) NotesUse "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; 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; Input Specifications Item Operating Conditions Min. Typ. Max. 5V output -- 702/30 718/75 Others -- 702/5 718/10 3.3V/5V output -- 355/20 363/30 Others -- 351/5 363/10 24VDC input -- 30 -- 48VDC input -- 30 -- 24VDC input -0.7 -- 50 24VDC input Input Current (full load / no-load) 48VDC input Reflected Ripple Current Surge Voltage (1sec. max.) 2018.12.17-A/5 Unit mA VDC Page 1 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRB_LD-15WR3 Series Surge Voltage (1sec. max.) Start-up Voltage Under-voltage protection Start-up Time 48VDC input -0.7 -- 100 24VDC input -- -- 18 48VDC input -- -- 36 24VDC input 12 15.5 -- 48VDC input 26 30 -- Nominal input voltage & constant resistance load -- 10 -- Input Filter Ctrl * VDC VDC ms Pi filter 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 mA 7 Unavailable Note: *The Ctrl pin voltage is referenced to input GND. Output Specifications Item Operating Conditions Min. Typ. Max. Voltage Accuracy 0% -100% load -- 1 3 Linear Regulation Input voltage variation from low to high at full load -- 0.2 0.5 Load Regulation Nominal input voltage -- 0.5 1 -- 300 500 3.3V output -- 5 8 Others -- 3 5 -- -- 0.03 %/ mVp-p Transient Recovery Time Transient Response Deviation 25% load step change, Nominal input voltage Temperature Coefficient Full load Ripple & Noise* 20MHz bandwidth, 5% -100% load -- 50 100 Trim 90 -- 110 Over-voltage Protection 110 -- 160 -- 190 Over-current Protection Input voltage range 110 Short-circuit Protection Unit % s % %Vo %Io Hiccup, continuous, self-recovery Note: *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. 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 M Isolation Capacitance Input-output capacitance at 100KHz/0.1V Operating Temperature 1000 -- -- VRB2424LD-15W(H)R3(A2S/A4S) VRB4824LD-15W(H)R3(A2S/A4S) -- 2050 -- Others -- 1050 -- -40 -- +85 -55 -- +125 See Fig. 1 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 10-55Hz, 10G, 30 Min. along X, Y and Z 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. 2018.12.17-A/5 Page 2 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRB_LD-15WR3 Series Mechanical Specifications Case Material Dimensions Weight 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 16.50 mm A2S chassis package ( without heat sink) 76.00 x 31.50 x 21.20 mm A2S chassis package( with heat sink) 76.00 x 31.50 x 25.30 mm A4S Din-rail package( without heat sink) 76.00 x 31.50 x 25.80 mm A4S Din-rail package( with heat sink) 76.00 x 31.50 x 29.90 mm without heat sink Horizontal package/A2S chassis package/A4S Din-rail package 26.0g/48.0g/68.0g(Typ.) with heat sink Horizontal package/A2S chassis package/A4S Din-rail package 34.0g/56.0g/76.0g(Typ.) Cooling Method Free air convection Electromagnetic Compatibility (EMC) CE Emissions RE Others CISPR32/EN55032 CLASS A (without external components)/ CLASS B (see Fig.3- for recommended circuit) 3.3V output CISPR32/EN55032 CLASS B (see Fig.3- for recommended circuit) Others CISPR32/EN55032 CLASS A (without external components)/ CLASS B (see Fig.3- for recommended circuit) 3.3V output Immunity CISPR32/EN55032 CLASS B (see Fig.3- for recommended circuit) 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 IEC/EN61000-4-29 0%, 70% variations immunity perf. Criteria B Typical Characteristic Curves Fig. 1 2018.12.17-A/5 Page 3 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRB_LD-15WR3 Series Design Reference Dual 1. Vin Typical application +Vo Cout All the DC/DC converters of this series are tested before delivery using the recommended circuit shown in Fig. 2. Input and/orCin output ripple can be further reduced by appropriately increasing the input & output capacitor values Cin and Cout and/or 0V DC DC by selecting capacitors with a low ESR (equivalent series resistance). Also make sure that the capacitance is not exceeding the specified Cout GND max. capacitive load value of the product. -Vo Single Vin Cin DC DC GND +Vo Vout (VDC) Cout (F) 3.3/5 470 0V 12/15 220 24 100 Cout Fig. 2 Cin (F) 100 2. EMC compliance circuit Parameter description Model FUSE Fig. 3 Notes: For EMC tests we use Part in Fig. 3 for immunity and part for emissions test. Selecting based on needs. Vin:48V Vin:24V Choose according to actual input current C0/C3 330F/50V 330F/100V C1 1F/50V 4.7F/100V C2 Refer to the Cout in Fig.2 LDM1 4.7H/2.2A CY1/CY2 1nF/2KV 2018.12.17-A/5 Page 4 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRB_LD-15WR3 Series 3. Trim Function for Output Voltage Adjustment (open if unused) Vo' Vo' R1 V r ef R2 RT R1 R3 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 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 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 2018.12.17-A/5 Page 5 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRB_LD-15WR3 Series Horizontal Package (with heat sink) Dimensions VRB_LD-15WR3A2S(without heat sink) Dimensions 2018.12.17-A/5 Page 6 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRB_LD-15WR3 Series VRB_LD-15WHR3A2S(with heat sink) Dimensions VRB_LD-15WR3A4S(without heat sink) Dimensions 2018.12.17-A/5 Page 7 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRB_LD-15WR3 Series VRB_LD-15WHR3A4S(with heat sink) Dimensions 2018.12.17-A/5 Page 8 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRB_LD-15WR3 Series 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, Luogang District, Guangzhou, P. R. China Tel: 86-20-38601850 Fax: 86-20-38601272 E-mail: info@mornsun.cn www.mornsun-power.com 2018.12.17-A/5 Page 9 of 9 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation