WRA_YMD-3W & WRB_YMD-3W Series 3W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER multi-country patent protection RoHS FEATURES ● Wide (2:1) Input Range ● Short Circuit Protection(automatic recovery) ● 1500VDC Isolation ● Operating Temperature: -40°C ~ +85°C ● No heat sink required ● No external component required ● Internal SMD required ● Five sided metal shielding ● MTBF>1000Khours ● RoHS Compliance PRODUCT PROGRAM Input Part Number Output Voltage (VDC) Current (mA) Efficiency (%, Typ) Voltage (VDC) Max Min ±5 ±300 ±30 68 ±12 ±125 ±12 72 ±15 ±100 ±10 71 WRB0505YMD-3W 5 600 60 68 WRB0512YMD-3W 12 250 25 72 WRB0515YMD-3W 15 200 20 71 WRA1205YMD-3W ±5 ±300 ±30 76 Nominal Range Max* WRA0505YMD-3W WRA0512YMD-3W WRA0515YMD-3W 5 4.5-9 11 WRA1212YMD-3W ±12 ±125 ±12 80 The WRA_YMD-3W & WRB_YMD-3W Series are WRA1215YMD-3W ±15 ±100 ±10 80 specially designed for applications where a wide WRB1205YMD-3W 5 600 60 77 WRB1209YMD-3W 9 333 33 78 WRB1212YMD-3W 12 250 25 80 WRB1215YMD-3W 15 200 20 81 APPLICATIONS range input voltage power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. These products apply to: 1) Where the voltage of the input power supply is wide range (Voltage range≤2:1); 2) Where isolation is necessary between input and output(Isolation voltage≤1500VDC); 3) Where the regulation of the output voltage and the output ripple noise are dem anded. 12 9-18 22 WRB1224YMD-3W 24 125 12 80 WRA2405YMD-3W ±5 ±300 ±30 77 WRA2412YMD-3W ±12 ±125 ±12 80 WRA2415YMD-3W ±15 ±100 ±10 80 WRB2405YMD-3W 5 600 60 77 WRB2409YMD-3W 9 333 33 79 24 18-36 40 WRB2412YMD-3W 12 250 25 81 MODEL SELECTION WRB2415YMD-3W 15 200 20 81 WRA0505YMD-3W WRB2424YMD-3W 24 125 12 80 Rated Power Package Style Output Voltage Input Voltage Product Series WRA4805YMD-3W ±5 ±300 ±30 77 WRA4812YMD-3W ±12 ±125 ±12 80 WRA4815YMD-3W ±15 ±100 ±10 81 WRB4805YMD-3W 5 600 60 77 WRB4809YMD-3W 9 333 33 79 MORNSUN Science & Technology co.,Ltd. WRB4812YMD-3W 12 250 25 81 Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax:86-20-38601272 Http://www.mornsun-power.com WRB4815YMD-3W 15 200 20 81 WRB4824YMD-3W 24 125 12 80 48 36-72 80 * Input voltage can’t exceed this value, or will cause the permanent damage. The copyright and authority for the interpretation of the products are reserved by Mornsun Specifications subject to change without notice. WRA_YMD-3W & WRB_YMD-3W A/2-2009 Page 1 of 3 OUTPUT SPECIFICATIONS Item TYPICAL TEMPERATURE CURVE Test Conditions Min Output power Refer to products program 0.3 Positive voltage accuracy Refer to recommended circuit Typ. Max. Units 3 W ±1 ±3 Negative voltage accuracy Refer to recommended circuit ±3 ±5 Load regulation Form 10% to 100% load ±0.5 ±1* Line regulation Input voltage from low to high ±0.2 Temperature drift (Vout) Refer to recommended circuit Ripple & Noise** 20MHz Bandwidth 75 Switching frequency 100% load, input voltage range 300 % ±0.5 ±0.03 %/°C 150 mVp-p KHz *Dual output models unbalanced load: ±5%. **Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. COMMON SPECIFICATIONS Item Test Conditions RECOMMENDED CIRCUIT Min. Typ. Storage humidity Max. Units 95 % Operating temperature -40 85 Storage temperature -55 125 Temp. rise at full load 1.5mm from case for 10 seconds Cooling C in °C 300 0.2 Tested for1 minute and 1mA max 1500 Isolation resistance Test at 500VDC 1000 Isolation Capacitance Input/output MTBF 0V W MΩ 100 1000 Weight DC (Figure 1) VDC pF K hours 15 g APPLICATION NOTE Requirement on output load In order to ensure the product operate efficiently and reliably, in addition to a max load Input Current(A) Isolation voltage 0V +Vout DC GND Aluminium Alloy No-load power consumption DC -Vout Cin Continuous, Automatic recovery Case material DC GND Single Output Vin Free Air Convection Short circuit protection +Vout Vin 15 Lead temperature Operating Temp.( C ) Ip Input Voltage Range Input Voltage (V) (namely full load), a minimum load is specified for this kind of DC/DC converter. Make sure the specified range of input voltage is not exceeded, the minimum output load no less than 10% load. If the actual load is less than the specified minimum load, the output ripple may increase sharply while its efficiency and reliability will reduce greatly. If the actual output power is very small, please add an appropriate resistor as extra loading, or contact our company for other lower output power products. Recommended Circuit All the WRA_YMD-3W & WRB_YMD-3W Series have been tested according to the following recommended testing circuit before leaving factory. This series should be tested under load (see Figure 1). Output External Capacitor Table(Table 1) Single Vout Cout Dual Vout Cout (VDC) (uF) (VDC) (uF) 3.3 2200 ±5 680 5 1000 ±9 470 9 680 ±12 330 12 470 ±15 220 15 330 24 220 - If you want to further decrease the input/output ripple, you can increase capacitance 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 sees (Table 1). General: Cin: 5V&12V 24V&48V 100μF 10μF-47μF Cout: 10μF/100mA Input current While using unstable power source, please ensure the output voltage and ripple voltage do not exceed indexes of the converter. The preceding power source must be able to provide for converter sufficient starting current Ip (Figure 2). General: Ip ≤1.4*Iin-max No parallel connection or plug and play The copyright and authority for the interpretation of the products are reserved by Mornsun Specifications subject to change without notice. WRA_YMD-3W & WRB_YMD-3W A/2-2009 Page 2 of 3 OUTLINE DIMENSIONS & FOOTPRINT DETAILS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DUAL/SINGLE OUTPUT 25.40 [1.000] ∅1.20 [∅0.047] 20.32 [0.800] 3 4 5 4 2 1 3 20.32 [0.800] 2.54 [0.100] 20.32 [0.800] (Bottom View) 25.40 [1.000] 5 1 2 5.08 [0.200] 10.00[0.394] 4.10 [0.161] 2.54 [0.100] (Side View) TUBE OUTLINE DIMENSIONS 0.50 [0.020] 13.40[0.528] Note: Unit:mm[inch] Pin diameter tolerances: ±0.10mm[ ±0.004inch] General tolerances: ±0.25mm[ ±0.010inch] FOOTPRINT DETAILS Pin Single Dual 1 2 3 GND Vin +Vo GND Vin +Vo 4 5 No Pin 0V 0V NC:No connection -Vo 21.00 [0.827] 30.20 [1.189] 0.80[0.031] 12.80 [0.504] Note: Unit :mm[inch] General tolerances: ±0.50mm[±0.020inch] L=530mm[20.866inch] Tube Quantity: 19pcs L=220mm[8.661inch] Tube Quantity: 7pcs Note: 1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically. 2. Operation under 10% load will not dam age the converter; However, they may not meet all specification listed. 3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. In this datasheet, all the test methods of indications are based on corporate standards. 5. Only typical models listed, other models may be different, please contact our technical person for more details. The copyright and authority for the interpretation of the products are reserved by Mornsun Specifications subject to change without notice. WRA_YMD-3W & WRB_YMD-3W A/2-2009 Page 3 of 3