WRE-ZD-3W&WRF-ZD-3W Series 3W,4:1 WIDE INPUT,ISOLATED®ULATED SINGLE/DUAL OUTPUT DIP DC/DC CONVERTER SELECTION GUIDE Input Output Voltage(VDC) Order code Efficiency (%,Typ) Current(mA) Nominal Range Max.* Voltage (VDC) WRE2405ZD-3W 24 9-36 40 ±5 ±300 ±30 80 WRE2412ZD-3W 24 9-36 40 ±12 ±125 ±13 82 WRE2415ZD-3W 24 9-36 40 ±15 ±100 ±10 84 WRE2424ZD-3W 24 9-36 40 ±24 ±63 ±6 87 WRF2403ZD-3W 24 9-36 40 3.3 909 91 78 WRF2405ZD-3W 24 9-36 40 5 600 60 80 WRF2412ZD-3W 24 9-36 40 12 250 25 82 Short Circuit Protection(Automatic recovery) WRF2415ZD-3W 24 9-36 40 15 200 20 84 Internal SMD construction WRF2424ZD-3W 24 9-36 40 24 125 13 82 WRE4805ZD-3W 48 18-72 80 ±5 ±300 ±30 80 WRE4812ZD-3W 48 18-72 80 ±12 ±125 ±13 82 FEATURES High Efficiency up to 84% ◆ Operating Temperature: -40℃ to +85℃ ◆ Max. Min. 3KVDC Input/Output Isolation ◆ ◆ ◆ No Heat Sink Required ◆ Industry Standard Pinout ◆ WRE4815ZD-3W 48 18-72 80 ±15 ±100 ±10 84 MTBF>1,000,000 hours WRE4824ZD-3W 48 18-72 80 ±24 ±63 ±6 84 RoHS Compliance WRF4803ZD-3W 48 18-72 80 3.3 909 91 77 WRF4805ZD-3W 48 18-72 80 5 600 60 80 WRF4812ZD-3W 48 18-72 80 12 250 25 82 WRF4815ZD-3W 48 18-72 80 15 200 20 84 WRF4824ZD-3W 48 18-72 80 24 125 13 84 ◆ ◆ MODEL SELECTION ① ② ③ ④ ⑤ ⑥ WRE 24 05 Z D -3W ①Product Series ②Input Voltage ③Output Voltage 1st ④Wide (4:1) Input Range ⑤DIP24 Package Style ⑥Rated Power Note: 1.*Input voltage can't exceed this value, or will cause the permanent damage. 2. The load shouldn't be less than 10%, otherwise ripple will increase dramatically. 3. Operation under 10% load will not damage the converter; However, they may not meet all specification listed. APPLICATIONS The WRE_ZD-3W&WRF_ZD-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≤4:1); 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. MICRODC RESERVES THE COPYRIGHT ISOLATION SPECIFICATIONS Parameter Test conditions Max. Units 3 W ±1 ±3 % ±3 ±5 % From 10% to 100% load ±0.5 ±2* % Line Regulation(at full load) Input voltage from low to high ±0.2 ±0.5 Temperature Drift(Vout) Refer to recommended circuit ±0.02 Ripple** 20MHz bandwidth 20 50 mVp-p Noise** 20MHz bandwidth 75 150 mVp-p Switching Frequency 100% load,nominal Input voltage 300 Output Power See below products program Positive Voltage accuracy Refer to recommended circuit Negative Voltage accuracy Refer to recommended circuit Load Regulation Min. Typ. 0.3 % %/℃ 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. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 2 WRE-ZD-3W&WRF-ZD-3W Series OUTPUT SPECIFICATIONS Parameter APPLICATION NOTE Test conditions Min Typ. Storage Humidity Max Uni 95 % Operating Temperature -40 85 ℃ Storage Temperature -55 125 ℃ Temp. rise at full load 40 300 Requirement 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 Lead Temperature 1.5mm from case for 10 seconds Isolation voltage Tested for 1 minute and 1mA max 3000 VDC greatly. If the actual output power is very small, please add an Isolation resistance Test at 500VDC 1000 MΩ appropriate resistor as extra loading, or contact our company for other mW lower output power products. No-load power consumption 500 Cooling Recommended Circuit Free air convection Case Material All the WRE_ZD-3W&WRF_ZD-3W Series have been tested according Plastic(UL94-V0) Short Circuit Protection to the following recommended testing circuit before leaving factory. (See Continuous, automatic recovery MTBF 1000 Weight Figure 1). K hours 17 g TYPICAL CHARECTERISTICS 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 OUTLINE DIMENSIONS & FOOTPRINT DETAILS greatest capacitance of its filter capacitor sees (Table 1). General: MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT(TOP VIEW) Cin: 24V&48V 10µF-47µF Cout: 10µF/100mA 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 TUBE OUTLINE DIMENSIONS module standard. Input current of power supply should afford the startup current of this kind of DC/DC module (See figure 2), General: Note: Unit:mm[inch] Pin diameter tolerances:±0.10mm[±0.004inch] General tolerances: ±0.25mm[±0.010inch] Ip ≤1.6*Iin-max FOOTPRINT DETAILS Pin Single Dual 2,3 GND GND 9 No Pin 0V 11 NC -Vo 14 +Vo +Vo 16 0V 0V 22,23 Vin Vin NC: No connection. http://www.microdc.cn Note: Unit :mm[inch] General tolerances:±0.50mm[±0.020inch] L=530mm[20.866inch] Tube Quantity: 15pcs L=220mm[8.661inch] Tube Quantity: 6pcs No parallel connection or plug and play. Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 2