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WRA2405YD-3W Datasheet(PDF) 2 Page - Microdc power Technology Co., Ltd |
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WRA2405YD-3W Datasheet(HTML) 2 Page - Microdc power Technology Co., Ltd |
2 / 3 page WRA WRA WRA WRA WRA WRA WRA WRA---- ----YD-3W YD-3W YD-3W YD-3W YD-3W YD-3W YD-3W YD-3W& & & & & & & &WRB WRB WRB WRB WRB WRB WRB WRB---- ----YD YD YD YD YD YD YD YD -3W -3W -3W -3W -3W -3W -3W -3W Series Series TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL TYPICAL CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS Temperature Derating Graph RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED RECOMMENDED CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT CIRCUIT Output Graph Output External Capacitor Table(Table 1) Single Vout Cout Dual Vout Cout (VDC) (μF) (VDC) (μF) 3.3 2200 ±5 680 5 1000 ±9 470 12 470 ±12 330 15 330 ±15 220 Parameter Conditions Min. Typ. Max. Units Output power See below products program 0.3 3 W Positive voltage accuracy Refer to recommended circuit ±1 ±3 % Negative voltage accuracy Refer to recommended circuit ±3 ±5 % Load regulation 10% to 100% load WRB-YD-3W ±0.5 ±1 % Load regulation 10% to 100% load WRA-YD-3W* ±0.5 ±0.5 % Temperature drift (Vout) Refer to recommended circuit ±0.03 %/℃ Line regulation Input voltage from low to high ±0.2 ±0.5 % 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. TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS CHARACTERISTICS http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646 page 2/3 APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION APPLICATION NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE 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. Recommended Recommended Recommended Recommended Circuit Circuit Circuit Circuit All the WRA_YD-3W&WRB_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 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 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. 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 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 |
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