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WRD241212YS-2W Datasheet(PDF) 2 Page - Microdc power Technology Co., Ltd |
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WRD241212YS-2W Datasheet(HTML) 2 Page - Microdc power Technology Co., Ltd |
2 / 3 page ![]() WRD WRD WRD WRD WRD WRD WRD WRD---- ----YS YS YS YS YS YS YS YS---- ----1 1 1 1 1 1 1 1W W W W W W W W& & & & & & & &WRD WRD WRD WRD WRD WRD WRD WRD---- ----YS YS YS YS YS YS YS YS---- ----2 2 2 2 2 2 2 2W W W W W W W W S Series eries http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646 Page 2 of 3 COMMON COMMON COMMON COMMON COMMON COMMON COMMON COMMON SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Parameter Parameter Parameter Parameter Conditions Conditions Conditions Conditions Min. Min. Min. Min. Typ. Typ. Typ. Typ. Max. Max. Max. Max. Units Units Units Units Storage humidity range 95 % Operating temperature -40 85 ℃ Storage temperature -55 125 Lead temperature 1.5mm from case for 10 seconds 300 Temp.rise at full load 15 No-load power consumption 0.1 W Case material Plastic(UL94-V0) Short circuit protection Continuous Cooling Free air convection MTBF 1000 K hours Weight 5.8 g OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Parameter Test conditions Min Typ. Max Unit Main output voltage accuracy Refer to recommended circuit ±1 ±3 % Vice output voltage accuracy Refer to recommended circuit ±3 ±5 % Load regulation 10% to 100% full load ±0.5 ±1 * % Line regulat ion Input voltage from low to high ±0.2 ±0.5 % Temperature drift (Vout) Refer to recommended circuit ±0.03 %/℃ Ripple & Noise** 20MHz Bandwidth 50 100 mVp-p 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 RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT EXTERNAL EXTERNAL EXTERNAL EXTERNAL CAPACITOR CAPACITOR CAPACITOR CAPACITOR TABLE TABLE TABLE TABLE (TABLE (TABLE (TABLE (TABLE 1) 1) 1) 1) V V V Vout out out out 2W 2W 2W 2W ::::C C C Cout out out out 1W 1W 1W 1W ::::Cout Cout Cout Cout (VDC) (μF) (μF) 5 680 470 9 470 330 12 330 220 24 220 100 When When When When the the the the environment environment environment environment temperature temperature temperature temperature is is is is higher higher higher higher than than than than 71 71 71 71°°°°C, C, C, C, the the the the product product product product output output output output power power power power should should should should be be be be less less less less th th th tha a a an n n n 60% 60% 60% 60% of of of of the the the the rated rated rated rated power. power. power. power. No No No No parallel parallel parallel parallel connection connection connection connection or or or or plug plug plug plug and and and and play. play. play. play. APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE 1) 1) 1) 1) CS CS CS CS Pin Pin Pin Pin By connecting a low ESR capacitor between this terminal and the pin-7(Figure 1), the output ripple and noise may be further improved. Generally, the capacitance is no greater than 47uF. 2) 2) 2) 2) Requirement Requirement Requirement Requirement on on on on Output Output Output Output Load Load Load Load To ensure this module can operate efficiently and reliably, During operation, the minimum output load is not less than 10% of the full load, If the actual load is less than the specified minimum load, the output ripple may increase sharply. 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. 3) 3) 3) 3) Recommended Recommended Recommended Recommended Circuit Circuit Circuit Circuit If you want to further decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR (Figure 1). 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) Cin: 5V & 12V 100μF 24V & 48V 10μF-47μF Lin: 10μH-120μH Cout: 100μF(TYP) 4) 4) 4) 4) Input Input Input Input current current current current While using unstable power source, please ensure the output voltage and ripple voltage do not exceed indexes of the converter. The preceding power source must be able to provide for converter sufficient starting current Ip (Figure 2). General: Ip ≤1.4*Iin-max 5) 5) 5) 5) No No No No parallel parallel parallel parallel connection connection connection connection or or or or plug plug plug plug and and and and play play play play TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE CURVE CURVE CURVE CURVE CURVE CURVE CURVE CURVE |
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