WRA-YMD-6W＆WRB-YMD-6W Series WIDE INPUT,ISOLATED & REGULATED Dual/Single Output DC/DC Converter SELECTION GUIDE Input order code Output Current(MA) Voltage(VDC) Efficiency Voltage (VDC) (%,Typ) ±60 ±5 75 ±25 ±12 80 ±200 ±20 ±15 82 11 1200 120 5 76 4.5-9.0 11 500 50 12 80 5 4.5-9.0 11 400 40 15 82 WRA1205YMD-6W 12 9.0-18.0 20 ±600 ±60 ±5 79 WRA1212YMD-6W 12 9.0-18.0 20 ±250 ±25 ±12 82 WRA1215YMD-6W 12 9.0-18.0 20 ±200 ±20 ±15 84 6 Watt load,-40°C to 85°C WRB1205YMD-6W 12 9.0-18.0 20 1200 120 5 79 WRB1212YMD-6W 12 9.0-18.0 20 500 50 12 82 ◆UL 94V-0 package material WRB1215YMD-6W 12 9.0-18.0 20 400 40 15 84 WRB1224YMD-6W 12 9.0-18.0 20 250 25 24 82 WRA2405YMD-6W 24 18.0-36.0 40 ±600 ±60 ±5 81 WRA2412YMD-6W 24 18.0-36.0 40 ±250 ±25 ±12 84 WRA2415YMD-6W 24 18.0-36.0 40 ±200 ±20 ±15 86 WRB2403YMD-1500 24 18.0-36.0 40 1500 150 3.3 78 ◆ Power sharing on output WRB2405YMD-6W 24 18.0-36.0 40 1200 120 5 80 WRB2412YMD-6W 24 18.0-36.0 40 500 50 12 84 ◆ I/O Isolation 1500VDC WRB2415YMD-6W 24 18.0-36.0 40 400 40 15 86 WRB2424YMD-6W 24 18.0-36.0 40 250 25 24 85 WRA4805YMD-6W 48 36.0-72.0 80 ±600 ±60 ±5 80 WRA4812YMD-6W 48 36.0-72.0 80 ±250 ±25 ±12 84 WRA4815YMD-6W 48 36.0-72.0 80 ±200 ±20 ±15 85 WRB4803YMD-1500 48 36.0-72.0 80 1500 150 3.3 78 WRB4805YMD-6W 48 36.0-72.0 80 1200 120 5 80 WRB4812YMD-6W 48 36.0-72.0 80 500 50 12 84 WRB4815YMD-6W 48 36.0-72.0 80 400 40 15 86 WRB4824YMD-6W 48 36.0-72.0 80 250 25 24 85 Nominal Range Max* Max Min WRA0505YMD-6W 5 4.5-9.0 11 ±600 FEATURES WRA0512YMD-6W 5 4.5-9.0 11 ±250 WRA0515YMD-6W 5 4.5-9.0 11 ◆RoHS compliant WRB0505YMD-6W 5 4.5-9.0 WRB0512YMD-6W 5 WRB0515YMD-6W ◆Efficiency up to 86% ◆1"×1"DIP Package ◆Wide temperature performance at full ◆No heatsink required ◆ Low ripple and good EMC Features ◆ Industry standard pinout ◆ Short Circuit Protection(automatic recovery) ◆ Metal case package ◆ MTBF>1000000 hours MODEL SELECTION ① ② ③ ④ ⑤ ⑥ ⑦ WR WRB B 24 05 Y M D -6W(1200) ①Product Series ②Input Voltage ③Output Voltage ④Wide (2:1) Input Range ⑤Metal Shield ⑥1"×1"DIP Package ⑦Rated Power(Output current) DESCRIPTION *Input voltage can't exceed this value,or will cause the permanent damage. OUTPUT SPECIFICATIONS The WRA_YMD-6W& WRB_YMD-6W series are specially designed for applications where a group of polar 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 demanded. Parameter Test conditions Min. Typ. Output power See above products program Positive voltage accuracy Refer to recommended circuit ±1.0 Negative voltage accuracy Refer to recommended circuit ±3.0 ±5.0 % Load regulation From 10% to 100% full load ±0.5 ±1.0 % Line regulation(at full load) Input voltage from low to high ±0.2 Temperature drift(Vout) Refer to recommended circuit Output Ripple** 20MHz Bandwidth Output Noise** 20MHz Bandwidth Switching frequency 100% Full load,input voltage range 300 0.6 Max. Units 6 W ±3.0 % ±0.5 % ±0.03 %/°C 20 50 MV p-p 50 100 MV p-p Khz * Dual output models unbalanced load (25/100%):±5%Max * *Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing of Power Converter section, application notes. MICRODC reserves the copyright http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 3 WRA-YMD-6W＆WRB-YMD-6W Series TYPICAL CHARACTERISTICS TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Storage humidity range Max. 95 NO-load power consumption 500 % MW Operating temperature -40 85 °C Storage temperature -55 125 °C 300 °C Lead temperature 1.5mm from case for 10 seconds Temp.rise at full load 15 Cooling Temperature Derating Graph Units °C Free air convection Case material Plastic(UL94-V0) Short circuit protection* Continuous,automatic recovery Case material Aluminium alloy MTBF 1000 Weight K hours 15 g *Supply voltage must be discontinued at the end of short circuit duration. RECOMMENDED CIRCUIT ISOLATION SPECIFICATIONS Parameter Test conditions Min. Isolation test voltage Flash tested for 1 minute and 1mA max 1500 Isolation resistance Test at Viso=500VDC 1000 Isolation capacitance Input/Outpu Typ. Max. OUTPUT Graph Units VDC MΩ 100 pF APPLICATION NOTE 1) Requirement on output load In order to ensure the product operate efficiently and reliably, in addition to a max load (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. 2) Recommended Circuit All the WRA_YMD-6W & WRB_YMD-6W Series have been tested according to the following recommended testing circuit before leaving factory. This series should be tested under load. Never be tested under no load (see Figure 1). 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 100μF 24V&48V 10μF-47μF Cout: 10PF/100mA 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 startup current of this kind of DC/DC module (Figure 2). EXTERNAL CAPACITOR TABLE (TABLE 1) General: Ip≤1.4*Iin-max 4) No parallel connection or plug and play http://www.microdc.cn Single Vout Cout Dual Vout Cout (VDC) (μF) (VDC) (μF) 3.3 2200 ±5 680 5 1000 ±9 470 9 680 ±12 330 12 470 ±15 220 15 330 _ _ 24 220 _ _ Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 3 WRA-YMD-6W＆WRB-YMD-6W Series OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT Dual/Single Output RECOMMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) TUBE OUTLINE DIMENSIONS Note: Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] FOOTPRINT DETAILS Pin Single Dual 1 GND GND 2 Vin Vin 3 +V0 +V0 4 NC 0V 5 0V -V0 NC:No connection Note: Unit :mm[inch] General tolerances: ±0.50mm[±0.020inch] L=530mm[20.866inch] Tube Quantity: 19pcs L=220mm[8.661inch] Tube Quantity: 7pcs When the environment temperature is higher than 71 71°°C, the product output ower should be less then 60% of the rated power. No parallel connection or plug and play. Use dual output simultaneously, forbid opening output pin (0V) to use as single output. Note: 1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically. 2. Operation under 10% load will not damage 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. RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. Microdc Professional Power Module,Inc. Tel:0086-20-86000646 REACH COMPLIANT INFORMATION E-mail:[email protected] Website:http://www.microdc.cn http://www.microdc.cn This series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 3