MEV3 Series 3kVDC Isolated 3W Single Output DC/DC Converters SELECTION GUIDE Order Code Nominal Input Voltage Output Voltage Output Current Input Current at Rated Load Load Regulation (Typ) Load Regulation (Max) Ripple & Noise (Typ)1 Ripple & Noise (Max)1 Effi ciency (Min.) Effi ciency (Typ.) Isolation Capacitance MTTF2 V V mA mA % mVp-p % % pF kHrs MEV3S0505SC 5 5 600 700 6.8 8 39 50 81.5 83 28 6029 MEV3S0509SC 5 9 333 680 5.5 7 24 35 85.3 87 43 5163 MEV3S0512SC 5 12 250 700 5 7 20 35 81.5 85.5 32 5995 FEATURES MEV3S0515SC 5 15 200 700 5 6 18 30 85 87.5 40 5426 MEV3S1205SC 12 5 600 300 4.5 6 34 50 81.5 84 34 6063 (cid:132) RoHS compliant MEV3S1209SC 12 9 333 280 3.6 5 22 35 85.5 87.5 50 6056 (cid:132) Typical effi ciency from 83% MEV3S1212SC 12 12 250 280 3.2 4.5 16 30 86 88 63 6572 (cid:132) Power density 1.9W/cm3 MEV3S1215SC 12 15 200 280 2.8 4 13 30 87 89 70 5754 (cid:132) Wide temperature performance at full INPUT CHARACTERISTICS 3 Watt load, –40°C to 85°C Parameter Conditions Min. Typ. Max. Units (cid:132) UL 94V-0 package material Continuous operation, 5V input types 4.5 5 5.5 Voltage range V Continuous operation, 12V input types 10.8 12 13.2 (cid:132) No heatsink required 5V input types 8 18 Refl ected ripple current mA p-p (cid:132) Industry standard pinout 12V input types 6.5 15 (cid:132) 3kVDC isolation (1 minute) OUTPUT CHARACTERISTICS (cid:132) 5V & 12V input Parameter Conditions Min. Typ. Max. Units (cid:132) 5V, 9V, 12V, & 15V output Rated Power TA=-40°C to 85°C 3 W Voltage Set Point Accuracy See tolerance envelope (cid:132) Fully encapsulated with toroidal Line regulation High VIN to low VIN 1.01 1.1 %/% magnetics ISOLATION CHARACTERISTICS (cid:132) No external components required Parameter Conditions Min. Typ. Max. Units (cid:132) No electrolytic or tantalum capacitors Isolation test voltage Flash tested for 1 minute 3000 VDC Resistance Viso= 1000VDC 10 GΩ (cid:132) UL 60950 recognition pending GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units PRODUCT OVERVIEW Switching frequency 60 kHz The MEV3 series is a new range of high performance 3W DC/DC converters, offering 3W TEMPERATURE CHARACTERISTICS of available output power in a previously rated Parameter Conditions Min. Typ. Max. Units 2W package capable of operation over the full Specifi cation All output types -40 85 industrial temperature range of -40ºC to 85ºC. Storage -50 125 Available in an industry standard SIP package, °C Case Temperature rise MEV3S0505SC 37 with a pin compatible power upgrade path from above ambient All other types 35 the 1W NMV/MEV and 2W NMK series’, they Cooling Free air convection are ideally suited for providing local supplies on control system boards with the added benefit of ABSOLUTE MAXIMUM RATINGS 3kVDC galvanic isolation. Lead temperature 1.5mm from case for 10 seconds 260°C Internal power dissipation 700mW Input voltage VIN, MEV05 types 7V Input voltage VIN, MEV12 types 15V 1. See Ripple & Noise characterisation method. 2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load. All specifi cations typical at TA=25°C, nominal input voltage and rated output current unless otherwise specifi ed. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_MEV3C.A01 Page 1 of 5

MEV3 Series 3kVDC Isolated 3W Single Output DC/DC Converters TEMPERATURE DERATING GRAPH OUTPUT VOLTAGE TOLERANCE ENVELOPE 5% 4.5 e 2% er (W)3.0 85°C put Voltag VNOM Typical Load Line 0% w ut o O P ut 1.5 Safe Operating Area -4% p ut 10 25 50 75 100 O 0 Output Load Current (%) -40 0 50 100 150 Ambient Temperature (°C) The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage varia- tion due to changes in output loading. TECHNICAL NOTES ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage, applied for a specifi ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions MEV3 series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 3kVDC for 1 minute. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” For a part holding no specifi c agency approvals, such as the MEV3 series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. The MEV3 series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specifi ed test voltage. This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further insulation system of physical spacing or barriers. RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260°C for 10 seconds. The pin termination fi nish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. They are backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_MEV3C.A01 Page 2 of 5

MEV3 Series 3kVDC Isolated 3W Single Output DC/DC Converters APPLICATION NOTES Minimum load The minimum load to meet datasheet specifi cation is 10% of the full rated load across the specifi ed input voltage range. Lower than 10% minimum loading will result in an increase in output voltage, which may rise to typically double the specifi ed output voltage if the output load falls to less than 5%. Capacitive loading and start up Typical start up times for this series, with a typical input voltage rise time of 2.2μs and output capacitance of 10μF, are shown in the table below. The product series will start into a capacitance of 47μF with an increased start time, however, the maximum recommended output capacitance is 10μF. Typical Start-Up Wave Form Start-up time μs MEV3S0505SC 165 MEV3S0509SC 300 MEV3S0512SC 650 MEV3S0515SC 1200 MEV3S1205SC 75 MEV3S1209SC 200 MEV3S1212SC 350 MEV3S1215SC 410 Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test confi guration. C1 1μF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter 10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less C2 than 100mΩ at 100 kHz C3 100nF multilayer ceramic capacitor, general purpose R1 450Ω resistor, carbon fi lm, ±1% tolerance R2 50Ω BNC termination T1 3T of the coax cable through a ferrite toroid RLOAD Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires Measured values are multiplied by 10 to obtain the specifi ed values. Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 R1 T1 R2 + + Y INPUT SUPPLY Input Output - - R LOAD www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_MEV3C.A01 Page 3 of 5

MEV3 Series 3kVDC Isolated 3W Single Output DC/DC Converters APPLICATION NOTES (continued) Output Ripple Reduction By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max. Component selection Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter. Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz. L DC Power C Load Source DC Inductor Capacitor L, μH SMD Through Hole C, μF MEV3S0505SC 10 84103C 11R103C 4.7 MEV3S0509SC 22 84223C 11R223C 2.2 MEV3S0512SC 47 84473C 11R473C 1 MEV3S0515SC 47 84473C 11R473C 1 MEV3S1205SC 10 84103C 11R103C 4.7 MEV3S1209SC 22 84223C 11R223C 2.2 MEV3S1212SC 47 84473C 11R473C 1 MEV3S1215SC 47 84473C 11R473C 1 EFFICIENCY VS LOAD MEV3505xxSC Input Voltage MEV3512XXSC Input Voltage 90 90 80 80 70 15V 70 15V 60 12V %) 60 12V Efficiency (%) 345000 95VV Efficiency ( 345000 95VV 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 Load (%) Load (%) www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_MEV3C.A01 Page 4 of 5

MEV3 Series 3kVDC Isolated 3W Single Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DETAILS 4 HOLES 0.774 (19.65) (Max.) 0.045 (1.15) Ø 0.00394 (0.1) 0.301 0.040 (1.00) (7.65) (Max.) 0.1 (2.54) MEV3S0505SC 0.4 (10.15) XYYWW 0.0016 (Max.) (0.40) Min. 1 2 5 7 0.181 (4.60) 0.1 (2.54) 0.142 (3.60) 0.50 (0.020) 0.1 (2.54) Unless otherwise stated all dimensions in inches (mm) ±0.5mm. 0.099 (2.52) 0.061 (1.54) 0.0118 (0.30) TUBE OUTLINE DIMENSIONS 0.0079 (0.20) (cid:17)(cid:15)(cid:20)(cid:23)(cid:23)(cid:1)(cid:9)(cid:26)(cid:15)(cid:20)(cid:17)(cid:10)(cid:1) 0.057 (1.45) 0.039 (1.00) 0.6 (15.24) Weight: 2.9g Unless otherwise stated, all dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position. (cid:20)(cid:10) (cid:21) (cid:19)(cid:15) (cid:18) PIN CONNECTIONS (cid:18)(cid:25)(cid:15)(cid:17)(cid:17)(cid:10)(cid:1) (cid:17)(cid:15)(cid:21)(cid:25)(cid:26)(cid:1)(cid:9) Pin Function (cid:17)(cid:26)(cid:1)(cid:9) 1 +VIN (cid:17)(cid:15)(cid:24) (cid:17)(cid:15)(cid:22)(cid:17)(cid:10) 2 -VIN (cid:19)(cid:17)(cid:1)(cid:9) 5 -VOUT (cid:17)(cid:15)(cid:17) 7 +VOUT (cid:17)(cid:15)(cid:19)(cid:1)(cid:9)(cid:22)(cid:15)(cid:17)(cid:17)(cid:10)(cid:1) Tube Quantity : 25 Unless otherwise stated all dimensions in inches (mm) ±0.5mm. Tube length : 20.47 (520mm ±2mm). USA: Mansfi eld (MA), Tel: (508) 339 3000, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Murata Power Solutions, Inc. France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com 11 Cabot Boulevard, Mansfi eld, MA 02048-1151 U.S.A. Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 Japan: Tokyo, Tel: 3-3779-1031, email: japan@murata-ps.com www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED Kyoto, Tel: 81-75-955-7269, email: japan@murata-ps.com China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifi cations are subject to change without Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com notice. © 2009 Murata Power Solutions, Inc. www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_MEV3C.A01 Page 5 of 5

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: MEV3S0505SC MEV3S0509SC MEV3S0512SC MEV3S0515SC MEV3S1205SC MEV3S1209SC MEV3S1212SC MEV3S1215SC