DC/DC Converter WRA_S-3WR2 & WRB_S-3WR2 Series FEATURES 3W, Wide input voltage, isolated & regulated dual / single output DC/DC converter Patent Protection RoHS Compact SIP package Wide input voltage range (2:1) Operating temperature range: -40 to +85 Isolation voltage: 1.5K VDC Low ripple & noise Short circuit protection (self-recovery) Remote On/Off High power density EN60950 approval WRA_S-3WR2 & WRB_S-3WR2 series are isolated 3W DC-DC products with 2:1 input voltage and conventional voltage output. The product has a relatively compact SIP-8 plastic package, and features high efficiency, operating temperature of -40 to +85, remote control, and continuous short-circuit protection. The smaller size and fine cost design make the converter an ideal solution in communication, instruments, and industrial electronics applications. Selection Guide Input Voltage (VDC) Certification Part No. Ripple&Noise (Typ./Max.) (mVp-p) Max. Efficiency (%, Min./Typ.) Capacitive Load (F) @ Full Load Output Current (mA)(Max./Min.) WRA0505S-3WR2 5 250/13 72/74 1000 WRA0512S-3WR2 12 104/5 75/77 470 WRA0515S-3WR2 15 83/4 75/77 330 WRA0524S-3WR2 24 52/3 74/76 220 3.3 758/38 66/68 1800 5 500/25 71/73 2200 WRB0509S-3WR2 9 278/14 72/74 1000 WRB0512S-3WR2 12 208/10 75/77 680 WRB0515S-3WR2 15 167/8 72/74 470 WRB0524S-3WR2 24 104/5 74/76 330 WRA1205S-3WR2 5 300/15 76/78 1000 WRA1209S-3WR2 9 167/8 76/78 680 WRA1212S-3WR2 12 125/6 77/79 470 WRA1215S-3WR2 15 100/5 78/80 330 WRB1203S-3WR2 3.3 758/38 73/75 2700 5 600/30 74/76 2200 WRB0505S-3WR2 CE Output Output Voltage(VDC) WRB0503S-3WR2 WRB1205S-3WR2 WRB1206S-3WR2 Nominal (Range) 5 (4.5-9) 12 (9-18) Max. 11 20 40/75 6 500/25 77/79 1800 WRB1209S-3WR2 9 333/17 77/79 1000 WRB1212S-3WR2 12 250/13 80/82 680 WRB1215S-3WR2 15 200/10 81/83 470 WRB1224S-3WR2 24 125/6 79/81 330 WRA2405S-3WR2 5 300/15 77/79 1000 WRA2409S-3WR2 9 167/8 79/81 680 WRA2412S-3WR2 12 125/6 81/83 470 WRA2415S-3WR2 15 100/5 WRB2403S-3WR2 3.3 758/38 5 WRB2409S-3WR2 WRB2412S-3WR2 WRB2415S-3WR2 15 200/10 WRB2424S-3WR2 24 125/6 WRB2405S-3WR2 24 (18-36) 40 70/100 100/150 81/83 330 72/74 2700 600/30 79/81 2200 9 333/17 81/83 1000 12 250/13 81/83 680 81/83 470 81/83 330 40/75 100/150 2017.08.17-B/1 Page 1 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter WRA_S-3WR2 & WRB_S-3WR2 Series CE WRA4805S-3WR2 5 300/15 WRA4812S-3WR2 12 125/6 WRA4815S-3WR2 15 100/5 WRB4803S-3WR2 3.3 758/38 WRB4805S-3WR2 48 (36-75) 80 5 600/30 WRB4812S-3WR2 12 250/13 WRB4815S-3WR2 15 200/10 WRB4824S-3WR2 24 125/6 100/150 40/75 100/150 40/75 70/100 77/79 1000 80/82 470 80/82 330 73/75 2700 74/76 2200 78/80 680 82/84 470 80/82 330 Notes 1 Absolute maximum rating without damage on the converter, but it isn't recommended; 2 The capacitive loads of positive and negative outputs are identical. Input Specifications Item Operating Conditions 3.3V Output 5VDC Input Input Current (full load/no-load) Surge Voltage (1sec. max.) Starting Voltage Typ. Max. -- 735/40 758/85 805/40 846/85 278/30 286/40 314/30 338/40 140/20 145/40 154/20 163/40 69/5 72/15 78/5 85/15 Others 3.3V Output 12VDC Input -- Others 3.3V Output 24VDC Input -- Others 3.3V Output 48VDC Input Reflected Ripple Current Min. -- Others 5VDC Input -- 20 -- 12VDC Input -- 20 -- 24VDC Input -- 55 -- 48VDC Input -- 55 -- 5VDC Input -0.7 -- 12 12VDC Input -0.7 -- 25 24VDC Input -0.7 -- 50 48VDC Input -0.7 -- 100 5VDC Input -- -- 4.5 12VDC Input -- -- 9 24VDC Input -- -- 18 48VDC Input -- -- 36 Input Filter mA VDC Filter capacitor Hot Plug Ctrl * Unit Unavailable Module turn-on The Ctrl end is suspended or of high resistance Module turn-off Connect with high level (relative to the input grounding) to make the 5-10mA current flows into the Ctrl end. Note: *For use of Ctrl, please refer to the "design reference" in this manual. Output Specifications Item Operating Conditions Output Voltage Accuracy 5%-100% loadInput voltage range 1 3 -- 5 8 others -- 1.5 5 -- 0.2 0.5 -- 0.6 1 Line Regulation Full load, the input voltage is from low to high Load Regulation 5%-100% load Temperature Coefficient Short Circuit Protection 25% load step change Full load Max. -- Input voltage range Transient Response Deviation Typ. WRB1203S-3WR2/WRB4803S-3WR2 No-load Output Voltage Accuracy Transient Recovery Time Min. Unit % -- 0.5 3 ms -- 2.5 5 % 0.02 0.03 %/ -- Continuous, self-recovery Note: Ripple and noise are measured by "parallel cable" method, please see DC-DC Converter Application Notes for specific operation. 2017.08.17-B/1 Page 2 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter WRA_S-3WR2 & WRB_S-3WR2 Series General Specifications Item Operating Conditions Min. Typ. Max. Unit Insulation Voltage Input-output, with the test time of 1 minute and the leak current lower than 1mA 1500 -- -- VDC Insulation Resistance Input-output, isolation voltage 500VDC 1000 -- -- M Isolation Capacitance Input-output, 100KHz/0.1V -- 120 -- pF Operating Temperature see Fig. 1 -40 -- +85 Storage Temperature -55 -- +125 Pin Welding Resistance Temperature Welding spot is 1.5mm away from the casing, 10 seconds -- -- +300 Storage Humidity Non-condensing -- -- 95 Switching Frequency (PFM Mode) Full load, nominal input voltage -- 250 -- KHz MTBF MIL-HDBK-217F@25 1000 -- -- K hours %RH Physical Specifications Casing Material Black flame-retardant and heat-resistant plastic Dimension 22.00*9.50*12.00 mm Weight 4.9g(Typ.) Cooling Method Free air convection EMC Specifications EMI EMS CISPR32/EN55032 CLASS B (see Fig. 3- for recommended circuit) CE RE 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 variations immunity IEC/EN61000-4-29 0%, 70% perf. Criteria B Product Characteristic Curve Output Power Percentage(%) Temperature Derating Curve 120 100 Other models 80 WRB0 503S-3 WR2 60 Safe Operation Area 40 20 0 -40 0 40 60 85 Environment Temperature.( ) Fig 1 2017.08.17-B/1 Page 3 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter WRA_S-3WR2 & WRB_S-3WR2 Series Design Reference 1. Recommended circuit All the DC/DC converters of this series are tested according to the recommended circuit (see Fig. 2) before delivery. If a further decrease of the input and output ripple is required, properly increase the input & output of additional capacitors Cin1, Cin2, Cs and Cout; or select capacitors of low equivalent impedance like series capacitor, etc. Cs is used to reduce ripple. No need to add Cs, if ripple meets the demand .Appropriate filter capacitance shall be chosen, start-up problems may be caused if the capacitance is too large. For each output circuit, under the condition of safe and reliable operation, the max. capacity of its filter capacitor should be lower than the max. capacitive load. Single L in 2 V in 6 C in 1 C in 2 GND Cd Vc + Vo 8 CS Cout 1 D 1 Lc R 7 3 0V Lin 2 6 Lout Cout Cin1 Cin2 7 GND Cd Vc 5VDC&12VDC 24VDC&48VDC 100F 10F Cin2 47F 1F Lin Dual Vin Vin Cin1 1 D1 Ic R Lout Cout 8 3 +Vo 0V - Vo 4.7H-12H Cs 10F-22F Cout Lout 100F(Typ.) 2.2H-10H Cd 47nF/100V Fig. 2 2. EMC solution-recommended circuit Vin LDM1 FUSE Vin Ctrl + MOV GND C0 D1 R Ctrl C2 C1 Cd CY1 +Vo DC/DC GND C3 LOAD -Vo (0V) Fig. 3 2017.08.17-B/1 Page 4 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter WRA_S-3WR2 & WRB_S-3WR2 Series Parameter description: Model Vin:5VDC FUSE Vin:12VDC Vin:24VDC Vin:48VDC Slow blown fuses according to the actual input current selections of the clients MOV -- S14K20 S20K30 S14K60 C0 680F/25V 680F/25V 330F/50V 330F/100V C1 4.7F/50V LDM1 4.7F/100V 12H C2 4.7F/50V C3 4.7F/100V Refer to the Cout in Fig.2 CY1 1nF/2KV D1 RB160M-60V/1A R In accordance with the formula: 47nF/100V Cd R= VC - VD - 1.0 - 300 IC Notes: Part in Fig. 3 is used for EMS test while part is used for EMI filtering; and parts and may be selected based on needs. VC is the voltage of the Ctrl end relative to the GND of the input grounding; VD is the positive-going conduction pressure drop of D1; IC is the current flows into the Ctrl end and its value is generally 5-10mA, see Fig. 3- for the peripheral circuit of Ctrl end; If there is no recommended parameters, no external component is required. 3. Ctrl end The modules are of normal output when the Ctrl end is suspended or of high resistance; the modules turn off when connecting with high level (relative to the input grounding); notice that the current flows into the pin shall be 5 - 10mA, the modules will be permanently damaged if the current exceeds its max. value (20mA in general). The value of R can be derived as follows: V - V - 1 .0 R= C D - 300 IC For Detailed parameter, please refer to EMC solution-recommended circuit in this manual. 4. Input current Input Current(A) When the electricity is provided by the unstable power supply, please make sure that the range of the output voltage fluctuation and the ripple voltage of the power supply do not exceed the indicators of the modules. Input current of power supply should afford the flash startup current of this kind of DC/DC module(see Fig. 5). Generally: Vin= 5V series Iave =1296mA Vin=12V series lave =631mA Vin=24V series lave =363mA Vin=48V series lave =157mA Iave Input Voltage scope Input Voltage (V) Fig. 5 5. Output load requirements When using, the minimum load of the module output should not be less than 5% of the nominal load.In order to meet the performance parameters of this datasheet, please connect a 5% dummy load in parallel at the output end, the dummy load is generally a resistor, please note that the resistor needs to be used in derating. 6. For more information please find DC-DC converter application notes on www.mornsun-power.com 2017.08.17-B/1 Page 5 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter WRA_S-3WR2 & WRB_S-3WR2 Series Dimensions and Recommended Layout Notes: 1. Packing information please refer to Product Packing Information which can be downloaded from www.mornsun-power.com. Packing bag number: 58210004; 2. Recommend to use module with more than 5% load, if not, the ripple of the product may exceeds the specification, but does not affect the reliability of the product; 3. The recommended unbalance degree of the dual output module load is 5%; if the degree exceeds 5%, than the product performance cannot be guaranteed to comply with all parameters in the datasheet. Please contact our technicians directly for specific information; 4. The maximum capacitive load offered were tested at input voltage range and full load; 5. 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; 6. All index testing methods in this datasheet are based on Company's corporate standards; 7. We can provide product customization service, please contact our technicians directly for specific information; 8. Specifications are subject to change without prior notice. 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: 86-20-38601850-8801 Fax: 86-20-38601272 E-mail: info@mornsun.cn 2017.08.17-B/1 Page 6 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation