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WRF2405YD-3W Datasheet(PDF) 2 Page - Microdc power Technology Co., Ltd |
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WRF2405YD-3W Datasheet(HTML) 2 Page - Microdc power Technology Co., Ltd |
2 / 3 page WRE-YD-3W&WRF-YD-3W WRE-YD-3W&WRF-YD-3W WRE-YD-3W&WRF-YD-3W WRE-YD-3W&WRF-YD-3W WRE-YD-3W&WRF-YD-3W WRE-YD-3W&WRF-YD-3W WRE-YD-3W&WRF-YD-3W WRE-YD-3W&WRF-YD-3W Series Series 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 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 See above 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 From 10% to 100% load ±0.5 ±1* % Line regulation(at full load) 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. *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 WRE_YD-3W & WRF_YD-3W series have been tested according to the following recommended testing circuit before leaving factory. This series should be tested under load. Never be tested under no 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 Input Voltage capacitance of its filter capacitor sees (Table 1). General: Cin: 12V 100µF 24V&48V 10µF-47µF Cout: 10µF/100mA 3) 3) 3) 3) Input Input Input Input Current Current Current Current When it is used in unregulated power supply, be sure that the fluctuating range of the power supply and the rippled voltage do not exceed the module standard. Input current of power supply should afford the startup current of this kind of DC/DC module. (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) Single Single Single Single Vout Vout Vout Vout (VDC) (VDC) (VDC) (VDC) Cout Cout Cout Cout (uF) (uF) (uF) (uF) Dual Dual Dual Dual Vout Vout Vout Vout (VDC) (VDC) (VDC) (VDC) Cout Cout Cout Cout (uF) (uF) (uF) (uF) 5 1000 ±5 680 9 680 ±9 470 12 470 ±12 330 15 330 ±15 220 24 220 - - |
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