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MSB1212MD-3W Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd. |
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MSB1212MD-3W Datasheet(HTML) 2 Page - MORNSUN Science& Technology Ltd. |
2 / 3 page The copyright and authority for the interpretation of the products are reserved by Mornsun Specifications subject to change without notice. MSA_((M)D-3W&MSB_(M)D-3W A/2-2009 Page 2 of 3 OUTPUT SPECIFICATIONS TYPICAL CHARACTERISTICS Item Test 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 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 %/ °C Ripple & Noise** 20MHz Bandwidth 50 100 mVp-p Switching frequency 100% load, nominal input voltage 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. Operating Temp.( ) C 100 COMMON SPECIFICATIONS RECOMMENDED CIRCUIT Item Test Conditions Min. Typ. Max. Units Storage humidity 95 % Operating temperature -40 85 Storage temperature -55 125 Temp. rise at full load 15 Lead temperature 1.5mm from case for 10 seconds 300 °C No-load Power consumption 0.2 W Cooling Free air convection Short circuit protection Continuous, Automatic Recovery Case material D: Plastic (UL94-V0); MD: Steel, Nickel Coated MTBF 1000 K hours Weight 15 g APPLICATION NOTE 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. 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 All the MSA_(M)D-3W & MSB_(M)D-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 capacitance of its filter capacitor sees (Table 1). Generally: If you want to use the products in high EMI, please choose our metal packaged products (MSA_MD-3W & MSB_MD- 3W). General: Cin: 5V&12V 100 μF 24V&48V 10 μF-47μF Cout: 10 μF/100mA Input 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 (See figure 2), General: Ip ≤1.4*Iin-max No parallel connection or plug and play DC DC Vin GND +Vout 0V Cin Vin GND +Vout 0V Cin DC DC -Vout Single Output (Figure 1) Input Voltage (V) Input Voltage Range Ip Output External Capacitor Table(Table 1) Single Vout (VDC) Cout (uF) Dual Vout (VDC) Cout (uF) 5 1000 ±5 680 9 680 ±9 470 12 470 ±12 330 15 330 ±15 220 24 220 ±24 100 |
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