DC/DC Converter VRA_LD-20WR3 & VRB_LD-20WR3 Series FEATURES 20W isolated DC-DC converter Wide input and regulated dual / single output Wide 2:1 input voltage range High efficiency up to 90% No-load power consumption as low as 0.15W I/O isolation test voltage 1.5k VDC Output short-circuit, over-voltage, over-current protection Operating ambient temperature range -40 ~ +85 Meets CISPR32/EN55032 CLASS A, without extra components Six-sided metal shielded package EN60950 approved Patent Protection RoHS VRA_LD-20WR3 & VRB_LD-20WR3 series of isolated 20W DC-DC converter 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 to +85, output short-circuit, over-voltage, over-current protection. They meet CLASS A of CISPR32/EN55032 EMI standards without external components 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 Voltage (VDC) Full Load Efficiency(%) Min./Typ. Capacitive Load(F) Max. 15 667/0 85/87 625 24 417/0 86/88 220 110 182/9 86/88 66 5 2000/0 82/84 4800 VRA2409LD-20WR3 9 1111/0 84/86 1000 VRA2412LD-20WR3 12 834/0 84/86 800 VRA2415LD-20WR3 15 667/0 84/86 625 24 417/0 84/86 500 3.3 5000/0 84/86 10000 VRA1215LD-20WR3 -- VRA1224LD-20WR3 VRB121DLD-20WR3 Nominal (Range) 12 (9-18) Max. 20 VRA2405LD-20WR3 CE -- VRA2424LD-20WR3 VRB2403LD-20WR3 VRB2405LD-20WR3 CE Output Current(mA) Max./Min. Part No. 24 (18-36) 40 5 4000/0 88/90 10000 VRB2409LD-20WR3 9 2222/0 85/87 4700 VRB2412LD-20WR3 12 1667/0 85/87 1600 VRB2415LD-20WR3 15 1333/0 86/88 1000 VRB2424LD-20WR3 24 834/0 86/88 500 VRA4805LD-20WR3 5 2000/0 84/86 4800 VRA4812LD-20WR3 12 834/0 86/88 800 VRA4815LD-20WR3 15 667/0 87/89 625 3.3 5000/0 84/86 10000 5 4000/0 88/90 10000 9 2222/0 87/89 4700 VRB4812LD-20WR3 12 1667/0 87/89 1600 VRB4815LD-20WR3 15 1333/0 88/90 1000 VRB4824LD-20WR3 24 834/0 88/90 500 2018.11.29-A/5 Page 1 of 7 VRB4803LD-20WR3 VRB4805LD-20WR3 VRB4809LD-20WR3 48 (36-75) 80 NotesExceeding the maximum input voltage may cause permanent damage; Efficiency is measured In nominal input voltage and rated output load; The specified maximum capacitive load value for positive and negative output is identical. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRA_LD-20WR3 & VRB_LD-20WR3 Series Input Specifications Item Operating Conditions Min. Typ. Max. 15V output 24V output Others ---- 1916/12 1894/15 1894/35 1960/20 1938/25 1938/-- 3.3V output -- 799/40 818/45 5V output -- 969/40 993/45 Others -- 947/6 969/10 3.3V output -- 400/20 409/25 5V output -- 485/20 497/25 Others -- 474/5 485/9 110V output -- 20 -- others -- 30 -- -- 30 -- 12VDC input -0.7 -- 25 24VDC input -0.7 -- 50 48VDC input -0.7 -- 100 12VDC input -- -- 9 24VDC input -- -- 18 48VDC input -- -- 36 Nominal input voltage & constant resistance load -- 10 12VDC input Input Current (full load / no-load) 24VDC input 48VDC input Reflected Ripple Current 12VDC input 24VDC / 48VDC input Surge Voltage (1sec. max.) Start-up Voltage Start-up Time Input Filter mA VDC ms Pi filter Module on Ctrl -- Unit Ctrl pin open or pulled high (3.5-12VDC) Module off Ctrl pin pulled low to GND (0-1.2VDC) Input current when off VRB121DLD-20WR3 -- 5 -- Others -- 4 7 Hot Plug mA Unavailable Note: The Ctrl pin voltage is referenced to input GND. Output Specifications Item Operating Conditions Voltage Accuracy Min. Typ. Max. -- 1 3 Positive output -- 1 3 Negative output -- 2 4 -- 1 3 -- 0.2 0.5 -- 0.5 1 -- 0.5 1 -- 1 1.5 -- 0.5 1 -- 0.5 1.5 -- -- 5 5%-100% load VRA1215LD-20WR3 0%-100% load VRA1224LD-20 WR3 Others Linear Regulation Load Regulation Cross Regulation Input voltage variation Positive output from low to high at full Negative output load VRA1215LD-20 Positive output WR3/VRA1224L Negative output D-20WR3 5%-100% load Positive output Others Negative output Dual output with Positive output at 50% load and Negative output from 10%-100% load Transient Recovery Time Transient Response Deviation 25% load step change, Nominal input voltage Temperature Coefficient Full load Ripple & Noise 20MHz bandwidth, 5%-100% load -- 300 500 3.3V/5V/5VDC output -- 5 8 Others -- 3 5 -- -- 0.03 -- -- 250 -- 50 100 VRB121DLD-20W R3 Others 2018.11.29-A/5 Unit % s % %/ mVp-p Page 2 of 7 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRA_LD-20WR3 & VRB_LD-20WR3 Series Trim Input voltage range(24V/48V input series) Over-voltage Protection Over-current Protection Input voltage range(24V/48V input series and VRA1215LD-20WR3/VRA1224LD-20WR3) VRB121DLD-20W R3 Input voltage range Others -- 10 -- 110 -- 160 -- 130 -- 110 -- 190 Short-circuit Protection %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%; The "parallel cable" method is used for Ripple and Noise test, please refer to DC-DC Converter Application Notes for specific information. Ripple & Noise at 5% load is 5%Vo. Max. 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 Input-output capacitance at 100KHz/0.1V VRB2424LD-20WR3 -- 2050 -- Isolation Capacitance VRB121DLD-20WR3 -- 2000 -- Operating Temperature See Fig. 1 Others Storage Temperature -- 1050 -- -40 -- +85 -55 -- +125 Storage Humidity Non-condensing 5 -- 95 Pin Soldering Resistance Temperature Soldering spot is 1.5mm away from case for 10 seconds -- -- 300 Max. Case Temperature Refer to temperature derating curve (VRB121DLD-20WR3) -- -- 105 Vibration pF %RH 10-150Hz, 5G, 90 Min. along X, Y and Z Switching Frequency PWM mode MTBF MIL-HDBK-217F@25 VRB121DLD-20WR3 -- 300 -- Others -- 270 -- 1000 -- -- KHz 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 Aluminum alloy Dimensions 50.80 x 25.40 x 11.80 mm Weight 26.0g(Typ.) Cooling Method Free air convection Electromagnetic Compatibility (EMC) ESD CISPR32/EN55032 CLASS A (without extra components)/ CLASS B (see Fig.3- for recommended circuit) CISPR32/EN55032 CLASS A (without extra components)/ CLASS B (see Fig.3- for recommended circuit) (except VRB121DLD-20WR3) 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 circuit) line to line 2KV (see Fig.3-for recommended 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 CE Emissions RE Immunity 2018.11.29-A/5 perf. Criteria B Page 3 of 7 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRA_LD-20WR3 & VRB_LD-20WR3 Series Typical Characteristic Curves VRB121DLD-20WR3 VRA1215LD-20WR3 Others Fig. 1 2018.11.29-A/5 Page 4 of 7 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRA_LD-20WR3 & VRB_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 Single Vout Cout Cin Dual Vout Cout Cin +Vo Vin (VDC) (F) (F) (VDC) (F) (F) Cout 3.3/5 470 5 220 Cin 0V DC DC Cout 9/12/15 220 9/12/15 100 100 100 GND -Vo 24 100 24 100 Single 110 -+Vo Vin Cin DC DC Cout 0V GND Fig. 2 2018.11.29-A/5 Page 5 of 7 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRA_LD-20WR3 & VRB_LD-20WR3 Series 2. EMC compliance circuit Single: Parameter description Model FUSE Dual: Vin:12V/24V Vin:48V Choose according to actual input current C0 680F/100V 680F/100V C1 1F/50V 1F/100V C2 330F/50V 330F/100V C3 / C4 Refer to the Cout in Fig.2 LDM1 4.7H CY1/ CY2 1nF/2KV Fig. 3 Notes: For EMC tests we use Part in Fig. 3 for emissions and part for immunity test. 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 RT= Trim Resistor value; a= self-defined parameter. 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 2.5 110 130.43 3.00 22 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 2018.11.29-A/5 Page 6 of 7 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter VRA_LD-20WR3 & VRB_LD-20WR3 Series Horizontal Package Dimensions and Recommended Layout THIRD ANGLE PROJECTION 4.10 [0.161] Front View 11.80 [0.465] 1.50 [0.059] 6 5 1 1.00 [0.039] 4 2 50.80 [2.000] 3 5.08 [0.200] 20.32 [0.800] Bottom View4 1 6 20.32 [0.800] 25.40 [1.000] 2 7.62 [0.300] NoteGrid 2.54*2.54mm 3 5 Note: Unit :mm[inch] Pin diameter tolerances :0.10[0.004] General tolerances:0.50[0.020] Pin-Out Pin Single Dual 1 GND GND 2 Vin Vin 3 +Vo +Vo 4 Trim 0V 5 0V -Vo 6 Ctrl Ctrl 1102000904-B0 Notes: 1. For additional information on Product Packaging please refer to www.mornsun-power.com.The Packaging bag number of Horizontal package: 58200035; 2. We suggest to use module at load of over 5%, if not, the ripple of the product may exceeds the specification, but does not affect the reliability of the product; 3. The maximum capacitive load offered were tested at input voltage range and full load; 4. 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; 5. All index testing methods in this datasheet are based on company corporate standards; 6. We can provide product customization service, please contact our technicians directly for specific information; 7. Products are related to laws and regulations: see "Features" and "EMC"; 8. 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 2018.11.29-A/5 Page 7 of 7 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation