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The copyright and authority for the interpretation of the products are reserved by MORNSUN WRA_P-3WR2 & WRB_P-3WR2 2013.07.25-A/3 Page 1 of 6 WRA_P-3WR2 & WRB_P-3WR2 Series 3W，W IDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT, DC-DC CONVERTER Patent Protected RoHS PART NUMBER SYSTEM WRA2405P-3WR2 Product Series Input Voltage Output Voltage Package Style Rated Power F EATURES

  • 2:1 wide input voltage range
  • DIP Package
  • Efficiency up to 86%
  • 1.5KVDC isolation
  • Short Circuit Protection(automatic recovery)
  • Temperature range: -40°C ~ +85°C
  • Meet CISPR22/EN55022 CLASS A APPLICATION The WRA_P-3WR2 & WRB_P-3 WR2 Series are specially designed for applications where a wide range input voltage power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. For these DC-DC converters, you can reduce the failure points of design, and save the manpower, material and time cost in developing micro power supply, and also ensure better quality, stability, safety protection, and reliability for the end products. These products apply to where: 1) Input voltage range ≤2:1; 2) 1.5KVDC input and output isolation; 3) Output regulated and low ripple noise is required. SELECTION GUIDE Input Voltage(VDC) Output Current (mA) Input Current (mA)(Typ.) Model Nominal (Range) Max. ① Output Voltage (VDC) Max. Min. @Max. Load @No Load Reflected Ripple Current (mA,Typ.) Max. Capacitive Load ②(µF) Efficiency (%, Typ.) @Max. Load WRA0505P-3WR2 ±5 ±300 ±15 790 2200 76 WRA0512P-3WR2 ±12 ±125 ±6 770 1800 78 WRA0515P-3WR2 ±15 ±100 ±5 770 1000 78 WRB0505P-3WR2 5 600 30 811 4700 74 WRB0512P-3WR2 12 250 12 780 2700 77 WRB0515P-3WR2 (4.5-9) 11 15 200 10 780 40 20 2200 77 WRA1205P-3WR2 ±5 ±300 ±15 309 2200 81 WRA1209P-3WR2 ±9 ±166 ±8 298 2000 84 WRA1212P-3WR2 ±12 ±125 ±6 298 1800 84 WRA1215P-3WR2 ±15 ±100 ±5 295 1000 85 WRB1203P-3WR2 3.3 909 46 338 4700 74 WRB1205P-3WR2 5 600 30 309 4700 81 WRB1212P-3WR2 12 250 12 302 2700 83 WRB1215P-3WR2 15 200 10 305 2200 82 WRB1224P-3WR2 (9-18) 20 24 125 6 302 1800 83 WRA2405P-3WR2 ±5 ±300 ±15 153 2200 82 WRA2412P-3WR2 ±12 ±125 ±6 149 1800 84 WRA2415P-3WR2 ±15 ±100 ±5 149 1000 84 WRB2403P-3WR2 3.3 909 46 160 4700 78 WRB2405P-3WR2 5 600 30 155 4700 81 WRB2412P-3WR2 12 250 12 146 2700 86 WRB2415P-3WR2 15 200 10 146 2200 86 WRB2424P-3WR2 (18-36) 40 24 125 6 147 1800 85 WRA4805P-3WR2 ±5 ±300 ±15 77 2200 82 WRA4812P-3WR2 ±12 ±125 ±6 75 1800 84 WRA4815P-3WR2 (36-75) 80 ±15 ±100 ±5 74 1000 85

The copyright and authority for the interpretation of the products are reserved by MORNSUN WRA_P-3WR2 & WRB_P-3WR2 2013.07.25-A/3 Page 2 of 6 WRB4803P-3WR2 3.3 909 46 82 4700 76 WRB4805P-3WR2 5 600 30 77 4700 82 WRB4812P-3WR2 12 250 12 73 2700 86 WRB4815P-3WR2 (36-75) 80 15 200 10 73 5 30 2200 86 Note:①. Absolute maximum rating without damage on the converter, but it isn't recommended; ②. For dual output converter, the given value is the same for each output. INPUT SPECIFICATIONS Item Test Conditions Min. Typ. Max. Unit 5V input -0.7 -- 12 12V input -0.7 -- 25 24V input -0.7 -- 50 Input Surge Voltage (1sec. max.) 48V input -0.7 -- 100 5V input 3.5 4 4.5 12V input 4.5 8 9 24V input 11 16 18 Start-up Voltage 48V input 24 33 36 VDC Input Filter Pi Filter OUTPUT SPECIFICATIONS Item Test Conditions Min. Typ. Max. Unit Output Voltage Accuracy 5% to 100% load -- ±1 ±3 No load output Voltage Accuracy Input voltage range -- ±1.5 ±5 Output Voltage Balance Dual output, balanced loads -- ±0.5 ±1 Line Regulation Full load, Input voltage from low to high -- ±0.2 ±0.5 Load Regulation 5% to 100% load -- ±0.2 ±0.5 Transient Recovery Time -- 0.5 2 ms Transient Response Deviation 25% load step change -- ±2 ±5 % Temperature coefficient 100% load -- ±0.02 ±0.03 %/°C Ripple* -- 15 30 Noise* 20MHz Bandwidth -- 45 75 mVp-p Output Short Circuit Protection Input voltage range Continuous, automatic recovery Note:* Ripple and noise tested with “parallel cable” method. See detailed operation instructions at DC-DC Application Notes. COMMON SPECIFICATIONS Item Test Conditions Min. Typ. Max. Unit Isolation Voltage Tested for 1 minute, leakage current less than 1 mA 1500 -- -- VDC Isolation Resistance Test at 500VDC 1000 -- -- MΩ Isolation Capacitance Input/Output,100KHz/0.1V -- 120 -- pF Switching Frequency(PFM mode) 100% load, nominal Input voltage -- 200 -- KHz MTBF MIL-HDBK-217F@25℃ 1000 -- -- K hours Case Material Plastic（UL94-V0） Weight -- 14 -- g ENVIRONMENTAL SPECIFICATIONS Item Test Conditions Min. Typ. Max. Unit Storage Humidity Non condensing -- -- 95 % Operating Temperature Power derating (above85℃,see Figure 5) -40 -- 85 Storage Temperature -55 -- 125 Temp. rise at full load Ta=25°C -- 25 -- Lead Temperature 1.5mm from case for 10 seconds -- -- 300 Cooling Free air convection

The copyright and authority for the interpretation of the products are reserved by MORNSUN WRA_P-3WR2 & WRB_P-3WR2 2013.07.25-A/3 Page 3 of 6 EMC SPECIFICATIONS CE CISPR22/EN55022 CLASS A(Without External Circuit)/ CLASS B（Recommended Circuit Refer to Figure1- or Figure 3② ） EMI RE CISPR22/EN55022 CLASS A(Without External Circuit)/ CLASS B(Recommended Circuit Refer to Figure1- or Figure 3② ) ESD IEC/EN61000-4-2 Contact ±4KV/ Air ±8KV perf. Criteria B RS IEC/EN61000-4-3 10V/m perf. Criteria A IEC/EN61000-4-4 ±2KV （Recommended Circuit Refer to Figure1- ①） perf. Criteria B EFT IEC/EN61000-4-4 ±4KV （Recommended Circuit Refer to Figure 3 ） perf. Criteria B Surge IEC/EN61000-4-5 ±2KV （Recommended Circuit Refer to Figure1-① or Figure 3） perf. Criteria B CS IEC/EN61000-4-6 3 Vr.m.s perf. Criteria A EMS Voltage dips, short and interruptions immunity perf. Criteria B EMC RECOMMENDED CIRCUIT Vin GND +Vo -Vo (0V) EUT LOADC2 LDM2 C0TVS LDM1 MOV FUSE Vin GND (Figure1) Recommended external circuit parameters: Model Vin:5V Vin:12V Vin:24V Vin:48V FUSE Choose according to practical input current MOV -- -- S14K35 S14K60 LDM1 -- -- 56μH TVS SMCJ13A SMCJ28A SMCJ48A SMCJ90A C0 680μF/16V 680μF/25V 330μF/50V 330μF/100V C1 4.7μF /50V 4.7μF /100V LDM2 12μH C2 4.7μF /50V 4.7μF /100V C3 1nF/2KV Note: 1.In Figure 1, part ① is EMS Recommended external circuit, part ② is EMI recommended external circuit. Choose according to requirements; 2. If there is no recommended parameters, the model no require the external component. EMC RECOMMENDED CIRCUIT PCB LAYOUT DUAL SINGLE (Figure 2) Note: The space between input and output GND (C3) must ≥2mm.

The copyright and authority for the interpretation of the products are reserved by MORNSUN WRA_P-3WR2 & WRB_P-3WR2 2013.07.25-A/3 Page 4 of 6 EMC MODULE APPLICATION CIRCUIT EUT GND-Vo +Vo -Vin +Vin FT-A/BX1D Load -Vo (0V) +VoVin C -Vin +Vin FUSE Nominal Input Voltage<48V, C≥330uF/50V Nominal Input Voltage=48V, C≥330uF/100V FT-A/BX1D is MORNSUN’s EFT suppresser (Figure 3) EMC MODULE RECOMMENDED CIRCUIT PCB LAYOUT DUAL SINGLE (Figure 4) EMI TEST WAVEFORM (RECOMMENDED CIRCUIT REFER TO FIGURE 1-②) WRA2415P-3WR2 CE(Class B, Positive line) WRA2415P-3WR2 CE (Class B, Negative line) PRODUCT TYPICAL PERFORMANCE CURVE Tolerance Envelope Graph 120 100 -40 0 40 85 105120 Output Power Percent(%) Output Current Percent(%) Ambient Temp.() ℃ Temperature Derating Graph Safe Operating Area Figure 5)

The copyright and authority for the interpretation of the products are reserved by MORNSUN WRA_P-3WR2 & WRB_P-3WR2 2013.07.25-A/3 Page 5 of 6 Efficiency VS Input Voltage curve (Full Load) 100 18 21 24 27 30 33 36 Input Voltage(V) Efficiency(%) WRA2415P-3WR2 Efficiency VS Output Load curve (Vin=Vin-nominal) 100 102030405060708090100 Total Output Current (%) Efficiency(%) WRA2415P-3WR2 Efficiency VS Input Voltage curve (Full Load) 18 21 24 27 30 33 36 Input Voltage(V) Efficiency(%) WRB2405P-3WR2 Efficiency VS Output Load curve (Vin=Vin-nominal) 100 102030405060708090100 T otal Output Current (%) Efficiency(%) WRB2405P-3WR2 MECHANICAL DIMENSIONS，RECOMMENDED FOOTPRINT & PACKAGING TEST CONFIGURATIONS Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate the source impedance. DCCin Lin DC Load Oscilloscope Current Probe L in(4.7µH) Cin(220 µF, ESR < 1.0Ω at 100 KHz)

The copyright and authority for the interpretation of the products are reserved by MORNSUN WRA_P-3WR2 & WRB_P-3WR2 2013.07.25-A/3 Page 6 of 6 DESIGN CONSIDERATIONS 1) Requirement on output load To ensure this module can operate efficiently and reliably, during operation, the minimum output load could not be less than 5% of the full load, otherwise ripple maybe increase dramatically. If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, suppose to use the resistance of 5% rated power,or use our company ’s products with a lower rated output power. 2) Recommended circuit All the WRA_P-3WR2 & WRB_P-3WR2 series have been tested according to the following recommended test circuit before leaving the factory (See Figure 6). If you want to further decrease the input/output ripple, you can increase a capacitance-values properly or choose capacitors with low ESR. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big , a startup problem might arise. For every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor must be less than the Max. Capacitive Load. General: Cin: 5V&12V 100μ F 24V&48V 10μ F~47μF Cout: 10μF/100mA DC DC Vin GND +Vo Cin Cout Vin GND +Vo 0VCin Cout DC DC -Vo Cout Dual Output Single Output (Figure 6) 3) Input current When it is used in unregulated power supply, be sure that the fluctuating range of the power supply and the rippled voltage do not exceed the module standard. Input current of power supply should afford the flash startup average current of this kind of DC/DC module (Figure 7). General: Vin:5V Iave =1400mA Vin:12V Iave =620mA Vin:24V Iave =310mA Vin:48V Iave =150mA Input Current(A) Input Voltage (V) Input Voltage Range Iave (Figure 7) 4) It is not recommended to increase the output power capability by connecting two or more converters in parallel. The product is not hot-swappable. Note: 1. Min. load shouldn't be less than 5%, otherwise ripple maybe increased dramatically. If the product operates under min. load, it may not be guaranteed to meet all specifications listed. Operation under minimum load will not damage the converter. 2. Recommended Dual output models unbalanced load is ≤±5%, if the product operates > ±5%, it may not be guaranteed to meet all specifications listed. Please contact our technical support for more details. 3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. Max. Capacitive Load is tested at input voltage range and full load. 5. In this datasheet, all test methods are based on our corporate standards. 6. All characteristics are for listed models, and non-standard models may perform differently. Please contact our technical support for more details. 7. Please contact our technical support for any specific requirement. 8. Specifications of this product are subject to changes without prior notice. MORNSUN Science & Technology Co.,Ltd. Tel: 86-20-38601850 Fax:86-20-38601272 E-mail: info@mornsun.cn Http://www.mornsun-power.com