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ML348S-15ERW Datasheet(PDF) 3 Page - MicroPower Direct, LLC |
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ML348S-15ERW Datasheet(HTML) 3 Page - MicroPower Direct, LLC |
3 / 4 page MicroPower Direct • 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: sales@micropowerdirect.com www.micropowerdirect.com MicroPower Direct • 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: sales@micropowerdirect.com www.micropowerdirect.com www.micropowerdirect.com EMC Specifications Parameter Standard Radiated Emissions See Note 1 EN 55022 Class A Conducted Emissions See Note 1 EN 55022 Class A ESD EN 61000-4-2 Criteria B; ±4 kV Contact RS EN 61000-4-3 Criteria A; 10V/m EFT See Note 2 EN 61000-4-4 Criteria B; ±2 kV Surge See Note 3 EN 61000-4-5 Criteria B; ±2 kV CS EN 61000-4-6 Criteria A; 3 Vrms Voltage Dips EN 61000-4-29 Criteria B; 0% - 70% Typical Connection The diagram above illustrates a typical connection of the ML300ERW series for applications that require meeting EMC standards.The units do not require external components to operate as specified. Some notes on this diagram (starting with the input circuit) are: 1. It is recommended that an external fuse be used.The recommended fuse is shown in the model chart on page 2. 2. An external MOV is recommended on the input to protect the unit in the event of a surge. A recommended value is given in the table at right. 3. An external TVS is recommended on the input to protect the unit in the event of a voltage spike. A recommended value is given in the table at right. 4. The output filtering capacitor (C4) is a high frequency, low resistance electrolytic capacitor. Care must be taken in choosing this capacitor not to exceed the capacitive load specification for the unit. The board layout illustration below shows a connection for dual output units.Voltage derating of capacitors should be 80% or above. Notes: 1. All units are rated for EN 55022 (CE/RE) class A without external components. They will meet class B with the addition of the MDCFM-0x (or a similar discrete filter circuit). Contact the factory for more information. 2. To meet the requirements of EN 61000-4-4 (±2 kV or ±4 kV), external com- ponents are needed. This can be done discretely, or with the addition of the MDCFM-0x. Contact the factory for more information. 3. To meet the requirements of EN 61000-4-5 (±2 kV), external components are needed. This can be done discretely, or with the addition of the MDCFM-0x. Contact the factory for more information. Typical Board Layout: With External Filter/Surge Components 5. Recommended values for components are: Component 12 VIN 24 VIN 48 VIN MOV - - - 10D560 10D101 L1 - - - 56 µH 56 µH TVS SMCJ28A SMCJ48A SMCJ90A C1 680 µF/25V 120 µF/50V 120 µF/100V C2 4.7 µF/50V 4.7 µF/50V 4.7 µF/100V L2 4.7 µH 4.7 µH C3 4.7 µF/50V 4.7 µF/50V 4.7 µF/100V C4 10 µF 10 µF 10 µF 6. Input noise and surge suppression modules are available for a number of MPD DC/DC power supplies.For pricing or full techni- cal information on these modules please contact the factory. Typical Connection: With External Filter Module MDCFM-0x Vin (VDC) Input Capacitor Vout (VDC) Output Capacitor 12 100 µF 5.0 10 µF 24 10 - 47 µF 12 10 µF 48 10 - 47 µF 15 10 µF 7. In many applications simply adding input/output capacitors will enhance the input surge pro- tection and reduce output ripple sufficiently. The input capacitor C1 and output cap- acitor C4 shown in the typical connection diagram above (and board layout drawing below) illustrate their connection. Recommended capacitor values are given in the table at right. For 12V and 24V input models, the value of C1 should be a 330 µF/50V. For 48V input models, the value of C1 should be a 330 µF/100V. For more information on the MDCFM-0x, please contact the factory. |
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