WRE-YD-4W&WRF-YD-4W Series 4W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC DC--DC CONVERTER SELECTION GUIDE Input Order code FEATURES Wide (2:1) Input Range ◆ 24Pin DIP Package ◆ 3000VDC Isolation ◆ Operating Temperature: -40℃～﹢85℃ ◆ High Efficiency Up To 81% ◆ Low Profile Metal Package ◆ Continuous Short Circuit Protection ◆ Pin-Compatible With Multiple Manufacturers ◆ RoHS Compliance ◆ MTBF>1000Khours ◆ MODEL SELECTION ① ② ③ ④ ⑤ ⑥ WR WRE E 24 15 Y D -4W(133) ①Product Series ②Input Voltage ③Output Voltage ④Wide (2:1) Input Range ⑤DIP24 Package Style ⑥Rated Power(Output current) APPLICATIONS The WRE_YD-4W & WRF_YD-4W 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. MICRODC RESERVES THE COPYRIGHT http://www.microdc.cn Output Voltage(VDC) Voltage Current max. 9VDC - 18VDC 3.3VDC 1000mA 9VDC - 18VDC 5VDC 800mA 12 9VDC - 18VDC 7.2VDC 556mA WRF1209YD-4W 12 9VDC - 18VDC 9VDC 444mA WRF1212YD-4W 12 9VDC - 18VDC 12VDC 333mA WRF1215YD-4W 12 9VDC - 18VDC 15VDC 267mA WRF1218YD-4W 12 9VDC - 18VDC 18VDC 222mA WRF1224YD-4W 12 9VDC - 18VDC 24VDC 167mA WRF2403YD-1000 24 18VDC - 36VDC 3.3VDC 1000mA WRF2405YD-4W 24 18VDC - 36VDC 5VDC 800mA WRF2407YD-4W 24 18VDC - 36VDC 7.2VDC 556mA WRF2409YD-4W 24 18VDC - 36VDC 9VDC 444mA WRF2412YD-4W 24 18VDC - 36VDC 12VDC 333mA WRF2415YD-4W 24 18VDC - 36VDC 15VDC 267mA WRF2418YD-4W 24 18VDC - 36VDC 18VDC 222mA WRF2424YD-4W 24 18VDC - 36VDC 24VDC 167mA WRF4803YD-1000 48 36VDC - 72VDC 3.3VDC 1000mA WRF4805YD-4W 48 36VDC - 72VDC 5VDC 800mA WRF4807YD-4W 48 36VDC - 72VDC 7.2VDC 556mA WRF4809YD-4W 48 36VDC - 72VDC 9VDC 444mA WRF4812YD-4W 48 36VDC - 72VDC 12VDC 333mA WRF4815YD-4W 48 36VDC - 72VDC 15VDC 267mA WRF4818YD-4W 48 36VDC - 72VDC 18VDC 222mA WRF4824YD-4W 48 36VDC - 72VDC 24VDC 167mA WRE1203YD-500 12 9VDC - 18VDC ±3.3VDC ±500mA WRE1205YD-4W 12 9VDC - 18VDC ±5VDC ±400mA WRE1207YD-4W 12 9VDC - 18VDC ±7.2VDC ±278mA WRE1209YD-4W 12 9VDC - 18VDC ±9VDC ±222mA WRE1212YD-4W 12 9VDC - 18VDC ±12VDC ±167mA WRE1215YD-4W 12 9VDC - 18VDC ±15VDC ±133mA WRE1218YD-4W 12 9VDC - 18VDC ±18VDC ±111mA WRE1224YD-4W 12 9VDC - 18VDC ±24VDC ±83mA WRE2403YD-500 24 18VDC - 36VDC ±3.3VDC ±500mA WRE2405YD-4W 24 18VDC - 36VDC ±5VDC ±400mA WRE2407YD-4W 24 18VDC - 36VDC ±7.2VDC ±278mA WRE2409YD-4W 24 18VDC - 36VDC ±9VDC ±222mA WRE2412YD-4W 24 18VDC - 36VDC ±12VDC ±167mA WRE2415YD-4W 24 18VDC - 36VDC ±15VDC ±133mA WRE2418YD-4W 24 18VDC - 36VDC ±18VDC ±111mA WRE2424YD-4W 24 18VDC - 36VDC ±24VDC ±83mA WRE4803YD-500 48 36VDC - 72VDC ±3.3VDC ±500mA WRE4805YD-4W 48 36VDC - 72VDC ±5VDC ±400mA WRE4807YD-4W 48 36VDC - 72VDC ±7.2VDC ±278mA WRE4809YD-4W 48 36VDC - 72VDC ±9VDC ±222mA WRE4812YD-4W 48 36VDC - 72VDC ±12VDC ±167mA WRE4815YD-4W 48 36VDC - 72VDC ±15VDC ±133mA WRE4818YD-4W 48 36VDC - 72VDC ±18VDC ±111mA WRE4824YD-4W 48 36VDC - 72VDC ±24VDC ±83mA Nominal Range WRF1203YD-1000 12 WRF1205YD-4W 12 WRF1207YD-4W Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 3 WRE-YD-4W&WRF-YD-4W Series General Specifications Input Specifications Voltage range 12VDC, 9~18VDC Efficiency 73% to 81% 24VDC, 18~36VDC Switching Frequency 250KHz, typ. 100% load 48VDC, 36~72VDC Filter p(Pi) Network Isolation Specifications Rated voltage (60 sec) 3000VDC Output Specifications Voltage accuracy ±1%, max. Voltage balance (Dual Output) ±1% Ripple & noise (at 20MHz BW) 60mVp-p, max. Resistance > 1000MOhm Short circuit protection Continuous Capacitance 120pF, typ. Short circuit restart Automatic Line voltage regulation ±0.5%, max. ±0.5%, max. ±0.02%/°C, typ. Environmental Specifications Operating temperature (ambient) -40°C ... +85°C Load voltage regulation Storage temperature -55°C ... +125°C Temperature coefficient Case temperature +100°C, max. Derating None required Humidity (non-condensing) Up to 90% Cooling Free-air Convection MTBF: > 1,036,000 hrs (MIL-HDBK-217F, Ground Benign, t=+25°C) Specifications are subject to change without notification Physical Specifications Dimensions 31.75x20.32x10.16mm 1.25x0.8x0.4inches Weight 19g Case material Nickel-Coated Copper TYPICAL CHARACTERISTICS APPLICATION NOTE Temperature Derating Graph 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 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 RECOMMENDED CIRCUIT All the WRE_YD-4W&WRE_YD-4W Series have been tested according to the following recommended testing circuit before leaving factory.This series should be tested under 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 100μF-47μF Cout: 10μF/100mA Output Graph Input current While using unstable power source,please ensure the output voltage and ripple voltage do not exceed indexes of the converter. Input current of power supply should afford the startup current of this kind of DC/DC module (See figure 2). General:Ip≤1.4*Iin-max No parallel connection or plug and play http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 3 WRE-YD-4W&WRF-YD-4W Series OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS RECOMMENDED FOOTPRINT MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT Top view grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) Note: Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] TUBE OUTLINE DIMENSIONS FOOTPRINT DETAILS Pin Single Dual 2、3 -V Input -V Input 9 N.C Common 11 N.C -V Output 14 +V Output +V Output 16 -V Output Common 22、23 +V Input +V Input NC:No connection When the environment temperature is higher than 71℃, the Note: product output power should be less then 60% of the rated Unit :mm[inch] power. General tolerances:±0.50mm[±0.020inch] No parallel connection or plug and play. L=530mm[20.866inch] Tube Quantity: 15pcs Use dual output simultaneously,forbid pening output pin (0V) L=220mm[8.661inch] Tube Quantity: 6pcs 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 data sheet, 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. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 3