WRE-YD-3W&WRF-YD-3W Series 3W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER PRODUCT PROGRAM Input Part Number FEATURES DIP24 package ◆ Efficiency up to 80% ◆ Operating temperature: -40℃ ~ +85℃ ◆ Short circuit protection ( automatic recovery) ◆ 3KVDC isolation ◆ No external component required ◆ ◆ ◆ ◆ Internal SMD construction Industry standard pinout MTBF>1,000,000 hours ◆ UL94-V0 Package ◆ RoHS Compliance Output Voltage Voltage(VDC) Current(MA) Efficiency (%,Typ) (VDC) Max Min Nominal Range Max* WRE1205YD-3W 12 9-18 22 ±5 ±300 ±30 74 WRE1212YD-3W 12 9-18 22 ±12 ±125 ±12 78 WRE1215YD-3W 12 9-18 22 ±15 ±100 ±10 79 WRF1205YD-3W 12 9-18 22 5 600 60 74 WRF1209YD-3W 12 9-18 22 9 333 33 76 WRF1212YD-3W 12 9-18 22 12 250 25 78 WRF1215YD-3W 12 9-18 22 15 200 20 77 WRF1224YD-3W 12 9-18 22 24 125 12 80 WRE2405YD-3W 24 18-36 40 ±5 ±300 ±30 77 WRE2409YD-3W 24 18-36 40 ±9 ±167 ±16 78 WRE2412YD-3W 24 18-36 40 ±12 ±125 ±12 79 WRE2415YD-3W 24 18-36 40 ±15 ±100 ±10 80 WRF2405YD-3W 24 18-36 40 5 600 60 77 WRF2409YD-3W 24 18-36 40 9 333 33 78 WRF2412YD-3W 24 18-36 40 12 250 25 79 WRF2415YD-3W 24 18-36 40 15 200 20 80 WRF4805YD-3W 48 36-72 80 5 600 60 77 WRF4812YD-3W 48 36-72 80 12 250 25 79 WRF4815YD-3W 48 36-72 80 15 200 *Input voltage can not exceed this value, or will cause the permanent damage. 20 80 MODEL SELECTION WR WRE E①12②05③Y④D⑤ -3W⑥ ①Product Series ②Input Voltage ③Output Voltage ④Wide (2:1) Input Range ⑤DIP Package Style ⑥Rated Power DESCRIPTION The WRE_YD-3W&WRF_YD-3W 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. 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 ≤3000VDC); 3) Where the regulation of the output voltage and the output ripple noise are demanded. ISOLATION SPECIFICATIONS Item Test Conditions Min. Isolation voltage Tested for 1 minute and 1mA max 3000 Typ. VDC Isolation resistance Test at 500VDC 1000 MΩ Item Test Conditions Storage humidity Test Conditions Min. Typ. Operating temperature -40 Storage temperature -55 Lead temperature 1.5mm from case for 10 seconds Units 95 % 85 ℃ 125 ℃ ℃ ℃ 300 Free air convection Continuous, automatic recovery Case material MTBF Max. 15 Cooling Short circuit protection Plastic (UL94-V0) 1000 Weight http://www.microdc.cn Units OUTPUT SPECIFICATIONS Temp. rise at full load MICRODC RESERVES THE COPYRIGHT Max. Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 K hours 17 g Page 1 of 3 WRE-YD-3W&WRF-YD-3W Series TYPICAL CHARACTERISTICS COMMON SPECIFICATIONS Item Test Conditions Min. 0.3 Typ. Max. Units Output power See above products program 3 W Positive voltage accuracy Refer to recommended circuit ±1 ±3 % Negative voltage accuracy Refer to recommended circuit ±3 ±5 % Load regulation From 10% to 100% load ±0.5 ±1* % Line regulation(at full load) Input voltage from low to high ±0.2 ±0.5 % Temperature Drift(Vout) Refer to recommended circuit ±0.03 %/℃ 100 mVp-p Ripple & Noise ** 20MHz Bandwidth 50 Switching frequency 100% load, input voltage range 300 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. RECOMMENDED CIRCUIT 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 WRE_YD-3W & WRF_YD-3W 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 Input Voltage capacitance of its filter capacitor sees (Table 1). General: Cin: 12V 100µF 24V&48V 10µF-47µF Cout: 10µF/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) General: Ip ≤1.4*Iin-max 4) No parallel connection or plug and play http://www.microdc.cn EXTERNAL CAPACITOR TABLE (TABLE 1) Output External Capacitor Table (Table 1) Single Vout Cout Dual Vout (VDC) (uF) (VDC) Cout (uF) 5 1000 ±5 680 9 680 ±9 470 12 470 ±12 330 15 330 ±15 220 24 220 - - Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 3 WRE-YD-3W&WRF-YD-3W Series OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT(TOP VIEW) TUBE OUTLINE DIMENSIONS 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