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WRD050505YD-3W Datasheet(PDF) 2 Page - Microdc power Technology Co., Ltd |
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WRD050505YD-3W Datasheet(HTML) 2 Page - Microdc power Technology Co., Ltd |
2 / 3 page WRD-YD-3W WRD-YD-3W WRD-YD-3W WRD-YD-3W WRD-YD-3W WRD-YD-3W WRD-YD-3W WRD-YD-3W Series Series http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646 Page 2 of 3 ISOLATION ISOLATION ISOLATION ISOLATION ISOLATION ISOLATION ISOLATION ISOLATION SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Item Item Item Item Test Test Test Test Conditions Conditions Conditions Conditions Min. Min. Min. Min. Typ. Typ. Typ. Typ. Max. Max. Max. Max. Units Units Units Units Isolation voltage Tested for 1 minute and 1mA max 1500 VDC Isolation resistance Test at 500VDC 1000 MΩ Isolation capacitance Input/Output, 100KHz/1V 100 pF *Supply voltage must be discontinued at the end of short circuit duration. APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE 1) 1) 1) 1) Requirement Requirement Requirement Requirement On On On On Output Output Output Output Load Load Load 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) 2) 2) 2) Recommended Recommended Recommended Recommended Circuit Circuit Circuit Circuit All the WRD-YD-3W 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 should not be too high, or may cause start-up problem. If you want to use the products in high EMI, please choose our metal packaged products (WRD_YD-3W). 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 22µF/10µF Cout: 10µF/100mA 3) 3) 3) 3) 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 4) 4) 4) 4) 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 CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT EXTERNAL CAPACITOR TABLE (TABLE 1) Output Output Output Output Output Output Output Output External External External External External External External External Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Table Table Table Table Table Table Table Table (Table (Table (Table (Table (Table (Table (Table (Table 1) 1) 1) 1) 1) 1) 1) 1) Vout(VDC) Vout(VDC) Vout(VDC) Vout(VDC) Cout(uF) Cout(uF) Cout(uF) Cout(uF) 5 680 9 470 12 330 15 220 24 100 OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Item Item Item Item Test Test Test Test Conditions Conditions Conditions Conditions Min. Min. Min. Min. Typ. Typ. Typ. Typ. Max. Max. Max. Max. Units Units Units Units Output power Refer to product program 0.3 3 W Main output voltage accuracy Refer to recommended circuit ±1 ±3 % Vice-output voltage accuracy Refer to recommended circuit ±3 ±5 Load regulation From 10% to 100% load ±0.5 ±1* Line regulation Input voltage from low to high ±0.2 ±0.5 Temperature drift (Vout) Refer to recommended circuit ±0.03 %/℃ Ripple** 20MHz Bandwidth 20 50 mVp-p Noise** 20MHz Bandwidth 75 150 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. |
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