WRA-YD-5W＆WRB-YD -5W Series 5W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER SELECTION GUIDE Output Input Voltage Efficiency Order code FEATURES ◆Wide 2:1 Input Range ◆Full SMD-Design ◆High Efficiency up to 86% ◆Extended Operating Temperature (VDC) Voltage (VDC) Current Max. (%.Typ.) WRB0503YD-1200 4.5–7 3.3 1200 75% WRB0505YD-5W 4.5–7 5 1000 79% WRA0505YD-5W 4.5–7 ±5 ±500 82% WRB1203YD-1200 9–18 3.3 1200 77% WRB1205YD-5W 9–18 5 1000 81% WRA1205YD-5W 9–18 ±5 ±500 81% WRB2403YD-1200 18–36 3.3 1200 79% WRB2405YD-5W 18–36 5 1000 83% WRA2405YD-5W 18–36 ±5 ±500 83% WRB4803YD-1200 36–75 3.3 1200 79% ◆I/O-isolation 1500 VDC WRB4805YD-5W 36–75 5 1000 83% ◆Indefinite Short-Circuit Protection WRA4805YD-5W 36–75 ±5 ±500 83% ◆Range -40°C to 85°C ◆RoHS Compliance ◆24-pin DIP with Industry Standard Pinout ◆High Reliability, MTBF >1 Mio. H ◆3 Year Product Warranty MODEL SELECTION Input Specifications 5 Vin models 50mA / 1460mA typ. Input current no load /full 12 Vin models 20mA / 590mA typ. load 24 Vin models 5mA / 290mA typ. ① ② ③ ④ ⑤ ⑥ WRB 24 05 Y D -5W(1000) ①Product Series ②Input Voltage ③Output Voltage ④Wide (2:1) Input Range ⑤DIP24 Package Style ⑥Rated Power(Output current) 4.4 VDC / 4.0 VDC 12 Vin models 8.0 VDC / 8.0 VDC voltage shut down 24 Vin models 16.0 VDC / 16.0 VDC 48 Vin models 32.0 VDC / 32.0 VDC 5 Vin models 10 V max. 12 Vin models 25 V max. 24 Vin models 50 V max. 48 Vin models 100 V max. APPLICATIONS SMD-technology guarantees a product with very high 3mA / 145mA typ. 5 Vin models Start-up voltage / under Surge voltage (1 sec. max.) The WRA-YD-5W&WRB-YD-5W of 2:1.State of the art 48 Vin models Reverse voltage protection 1.0 A max. Conducted noise (input) EN 55022 level A, FCC part 15, level A reliability and good cost or performance ratio. High efficiency allows an operating temperature range of -40℃ Output Specifications to +85 ℃ Voltage set accuracy without derating. I/O-isolation of 1500 VDC together with conducted noise compliance to EN 55022-A and FCC, level A makes these converters ideal for a wide 1% –Input variation Vin min. to Vin max. 0.3 % max. –Load variation 10–100 % Regulation range of applications in communications, mobile battery powered equipments and industrial systems. –single output models 1 % max. –dual output models balanced load 1 % max. –dual output models unbalanced 3 % max. Ripple and noise (20 MHz Bandwidth) 50 mVpk-pk max. Temperature coefficient ± 0.02 % /K Output current limitation >120 % of Iout max., constant Short-circuit protection MICRODC reserves the copyright Capacitive load indefinite (automatic recovery) –single output models –dual output models http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 6800 µF max. 1000 µF max. (each output) Page 1 of 3 WRA-YD-5W＆WRB-YD -5W Series General Specifications Physical Specifications –Operating Temperature ranges –40 ℃ ... + 85 ℃ –Case temperature +100 ℃ max. –Storage Derating Humidity(non condensing) Case material –55 ℃ ... + 125 ℃ Potting material 3.5% /K above 70 ℃ Weight 95 % rel H max. steel, Nickel plated Baseplate material non conductive FR4 epoxy (UL 94V-0 rated) 14 g (0.55 oz) Soldering temperature max. 265 °C / 10 sec. >1 Mio. h @ + 25 ℃ Reliability, calculated MTBF (MIL-HDBK-217 E) Isolation voltage Input/Output 1500 VDC Isolation capacity Input/Output Isolation resistance Input/Output (500 VDC) 380 pF typ. Switching frequency > 1000 M Ohm 300 kHz typ. (Pulse frequency modulation PFM) UL 60950, IEC 60950, EN 60950 Compliance up to 60 VDC input voltage(SELV limit) Safety standards Safety approval UL /cUL File E188913 (5Vin models pending) 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 WRA_YD-5W&WRB_YD-5W 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 WRA-YD-5W＆WRB-YD -5W Series OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS RECOMMENDED FOOTPRINT MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT Top view grid:2.54mm(0.1inch) Note: diameter:1.00mm(0.039inch) Pin diameter ø 0.5 ±0.05 (0.02 ±0.002) Tolerances ±0.5 (0.02) TUBE OUTLINE DIMENSIONS FOOTPRINT DETAILS Pin Single Dual 2、3 –Vin (GND) –Vin (GND) 9 No pin Common 11 No con. –Vout 14 +Vout +Vout 16 –Vout Common 22、23 +Vin (Vcc) +Vin (Vcc) NC:No connection When the environment temperature is higher than 71 71℃,, the product output power should be less then 60% of the rated power. No parallel connection or plug and play. Use dual output simultaneously,forbid pening output pin (0V) to use as single output. Note: Unit :mm[inch] General tolerances:±0.50mm[±0.020inch] L=530mm[20.866inch] Tube Quantity: 15pcs L=220mm[8.661inch] Tube Quantity: 6pcs 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