ML300ERW Series Low Cost, 3W SMT 2:1 Input Range DC/DC Converters Electrical Specifications Key Features: • 3W Output Power Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice. Input Parameter Conditions Min. 12 VDC Input 9.0 24 VDC Input 18.0 48 VDC Input 36.0 12 VDC Input 4.5 24 VDC Input 11.0 48 VDC Input 24.0 (Pi) Filter • 2:1 Input Voltage Range • 1,500 VDC Isolation Input Voltage Range • Compact SMT Case • Nine Standard Models Input Start Voltage • Short Circuit Protected • -40°C to +85°C Operation • Available On Tape/Reel • Low Cost Input Filter Reflected Ripple Current Typ. 12.0 24.0 48.0 8.0 16.0 33.0 Max. 18.0 36.0 75.0 9.0 18.0 36.0 30 Units VDC VDC mA Output Parameter Output Voltage Accuracy Line Regulation Load Regulation Ripple (20 MHz) Noise (20 MHz) Transient Recovery Time, See Note 2 Transient Response Deviation Temperature Coefficient Output Short Circuit, See Note 3 Conditions Min. Typ. ±1.0 VIN = Min to Max ±0.2 IOUT = 5% to 100% ±0.2 See Note 1 20 See Note 1 45 0.5 25% Load Step Change ±2.0 ±0.02 Continuous (Autorecovery) Max. ±3.0 ±0.4 ±0.75 35 60 1.0 ±5.0 ±0.03 Units % % % mV P - P mV P - P mSec % %/°C Conditions Min. 1,500 1,000 Max. Units VDC M pF kHz Max. +85 +125 Units °C °C 95 % General Parameter Isolation Voltage Isolation Resistance Isolation Capacitance Switching Frequency 60 Seconds 500 VDC 100 kHz, 0.1V Typ. 1,000 350 Environmental MicroPower Direct 292 Page Street Suite D Stoughton, MA 02072 USA T: (781) 344-8226 F: (781) 344-8481 E: [email protected] W: www.micropowerdirect.com Parameter Operating Temperature Range Storage Temperature Range Cooling Humidity Physical Case Size Case Material Weight Conditions Min. Typ. -40 +25 -55 Free Air Convection RH, Non-condensing Ambient See Mechanical Drawing (Page 4) Non-Conductive Black Plastic (UL94-V0) 0.183 Oz (5.2g) Reliability Specifications Parameter MTBF Conditions MIL HDBK 217F, 25°C, Gnd Benign Min. 1.0 Typ. Max. Units MHours Conditions 12 VDC Input 24 VDC Input 48 VDC Input Min. -0.7 -0.7 -0.7 Typ. Max. 25.0 50.0 100.0 240 300 Units Absolute Maximum Ratings Parameter Input Voltage Surge (1 Sec) Peak Reflow Temperature Lead Temperature 1.5 mm From Case for 10 Sec Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings. www.micropowerdirect.com VDC °C °C www.micropowerdirect.com Model Selection Guide Input Model Number Voltage (VDC) Output Fuse Efficiency Capacitive Rating Load Voltage Current Current (%, Typ) (µF, Max) Slow-Blow (mA) Full-Load No-Load (VDC) (mA, Max) (mA, Min) Current (mA) Nominal Range ML312S-05ERW 12 9.0 - 18.0 333 22 5.0 600 30 75 3,300 600 ML312S-12ERW 12 9.0 - 18.0 325 22 12.0 250 12 77 1,800 600 ML312S-15ERW 12 9.0 - 18.0 316 22 15.0 200 10 79 1,000 600 ML324S-05ERW 24 18.0 - 36.0 164 12 5.0 600 30 76 3,300 300 ML324S-12ERW 24 18.0 - 36.0 154 12 12.0 250 12 81 1,800 300 ML324S-15ERW 24 18.0 - 36.0 156 12 15.0 200 10 80 1,000 300 ML348S-05ERW 48 36.0 - 75.0 81 8 5.0 600 30 77 3,300 150 ML348S-12ERW 48 36.0 - 75.0 78 8 12.0 250 12 80 1,800 150 ML348S-15ERW 48 36.0 - 75.0 78 8 15.0 200 10 80 1,000 150 Notes: 1. When measuring output ripple & noise, it is recommended that an external ceramic capacitor (approx 10 µF) be placed from the +VOUT to the -VOUT pins. 2. Transient recovery is measured to within a 1% error band for a load step change of 25%. 3. Short circuit protection is provided by a “hiccup mode” circuit. 4, These units should not be operated with a load under 5% of full load. Operation at no-load will not damage the unit, but they may not meet all specifications. 5. The recommended reflow settings are a peak temperature of 245 °C for a maximum period (TPK) of 10S and a time above liquidous (TL) of <60 seconds at 217 °C. A suggested temperature profile is shown on page four. For more information, please contact the factory. 6. It is recommended that a fuse be used on the input of a power supply for protection. See the Model Selection table above for the correct rating. Efficiency vs Input Voltage 24 VDC Input Efficiency vs Output Load 24 VDC Input Efficiency vs Input Voltage 48 VDC Input Efficiency vs Output Load 48 VDC Input 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: [email protected] www.micropowerdirect.com EMC Specifications Parameter Radiated Emissions Conducted Emissions ESD RS EFT Surge CS Voltage Dips Standard See Note 1 EN 55022 See Note 1 EN 55022 EN 61000-4-2 EN 61000-4-3 See Note 2 EN 61000-4-4 See Note 3 EN 61000-4-5 EN 61000-4-6 EN 61000-4-29 Class A Class A Criteria B; ±4 kV Contact Criteria A; 10V/m Criteria B; ±2 kV Criteria B; ±2 kV Criteria A; 3 Vrms Criteria B; 0% - 70% 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 components 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 Connection The diagram above illustrates a typical connection of the ML300ERW series 5. Recommended values for components are: 7. In many applications simply adding input/output capacitors will for applications that require meeting EMC standards. The units do not require enhance the input surge proComponent 24 VIN 48 VIN 12 VIN Vin Input Vout Output external components to operate as specified. Some notes on this diagram tection and reduce output (VDC) Capacitor (VDC) Capacitor MOV 10D560 10D101 (starting with the input circuit) are: ripple sufficiently. The input 12 5.0 100 µF 10 µF L1 --56 µH 56 µH 1. It is recommended that an external fuse be used. The recommended fuse capacitor C1 and output cap24 12 10 - 47 µF 10 µF acitor C4 shown in the typical is shown in the model chart on page 2. TVS SMCJ28A SMCJ48A SMCJ90A connection diagram above 2. An external MOV is recommended on the input to protect the unit in the 48 15 10 - 47 µF 10 µF C1 680 µF/25V 120 µF/50V 120 µF/100V (and board layout drawing event of a surge. A recommended value is given in the table at right. C2 4.7 µF/50V 4.7 µF/50V 4.7 µF/100V below) illustrate their connection. Recommended capacitor values are 3. An external TVS is recommended on the input to protect the unit in the L2 4.7 µH 4.7 µH given in the table at right. event of a voltage spike. A recommended value is given in the table at C3 4.7 µF/50V 4.7 µF/50V 4.7 µF/100V right. 4. The output filtering capacitor (C4) is a high frequency, low resistance C4 10 µF 10 µF 10 µF electrolytic capacitor. Care must be taken in choosing this capacitor not to exceed the capacitive load specification for the unit. The board layout 6. Input noise and surge suppression modules are available for a number of MPD DC/DC power supplies. For pricing or full techniillustration below shows a connection for dual output units. Voltage derating cal information on these modules please contact the factory. of capacitors should be 80% or above. Typical Board Layout: With External Filter/Surge Components Typical Connection: With External Filter Module MDCFM-0x 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. MicroPower Direct • 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: [email protected] Derating Curve www.micropowerdirect.com Suggested Solder Profile Pin Connections Pin Function 1 -VIN 7 No Connection 8 No Connection Pin 9 10 16 Function +VOUT -VOUT +VIN Mechanical Dimensions Board Layout MicroPower Direct Notes: • All dimensions are typical in inches (mm) • Tolerance x.xx = ±0.02 (±0.50) We Power Your Success - For Less! 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: [email protected]