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3kVDC Isolated 1W Single Output DC/DC Converters KDC_MEVC.A01 Page 1 of 4 Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232www.murata-ps.com For full details go to www.murata-ps.com/rohs Ḥ 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 Efficiency (Min.) Efficiency (Typ.) Isolation Capacitance MTTF2 VV m A mA % mVp-p % % pF kHrs MEV1S0505SC 5 5 200 233 5.2 6 20 30 80.5 84 38 3583 MEV1S0509SC 5 9 111 227 4 5 12 20 82.5 86 42 3286 MEV1S0512SC 5 12 84 226 4.5 5.5 10 20 84 87 40 2886 MEV1S0515SC 5 15 67 225 4.2 5 8 15 84.5 87 39 2419 MEV1S1205SC 12 5 200 98 4.4 4.8 12 15 80 83.5 28 3308 MEV1S1209SC 12 9 111 96 2.9 3.2 8 15 83 86 50 3054 MEV1S1212SC 12 12 84 94 2.9 3.1 7 15 84 87 70 2705 MEV1S1215SC 12 15 67 94 2.4 2.8 7 15 82 87 59 2290 When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the additional external capacitance for reliable start up. INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Voltage range Continuous operation, 5V input types 4.5 5 5.5 VContinuous operation, 12V input types 10.8 12 13.2 Reflected ripple current 5V input types 11 20 mA p-p12V input types 5 15 ABSOLUTE MAXIMUM RATINGS Lead temperature 1.5mm from case for 10 seconds 300°C Internal power dissipation 300mW Input voltage VIN, MEV05 types 7V Input voltage VIN, MEV12 types 15V OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated Power TA=-40°C to 85°C 1W Voltage Set Point Accuracy See tolerance envelope Line regulation High V IN to low VIN 1.05 1.2 %/% ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 minute 3000 VDC Resistance Viso= 1000VDC 10 GΩ GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency 5V input types 60 kHz12V input types 75 TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification All output types -40 85 °CStorage -50 125 Case Temperature above ambient 5V output types 20 All other output types 20 Cooling Free air convection PRODUCT OVERVIEW The MEV series is the new high performance version of our 1W NMV series. The MEV series is more efficient and offers improved regulation performance ≤5% for applications where a wide output voltage variation can not be tolerated. They are ideally suited for providing local supplies on control system boards with the added benefit of 3kVDC galvanic isolation to reduce switch ing noise. The MEV series is currently available in an industry SIP 7 package.

FEATURES

/square6 RoHS compliant /square6 Efficiency from 80% /square6 Power density 0.85W/cm3 /square6 Wide temperature performance at full

1 Watt load, –40°C to 85°C

/square6 UL 94V-0 package material /square6 No heatsink required /square6 Industry standard pinout /square6 3kVDC isolation (1 minute) /square6 5V & 12V input /square6 5V, 9V, 12V, & 15V output /square6 Fully encapsulated with toroidal magnetics /square6 No external components required /square6 No electrolytic or tantalum capacitors 1. See Ripple & Noise characterisation method. 2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load. All specifications typical at T A=25°C, nominal input voltage and rated output current unless otherwise specified.

3kVDC Isolated 1W Single Output DC/DC Converters KDC_MEVC.A01 Page 2 of 4 Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232www.murata-ps.com TEMPERATURE DERATING GRAPH TOLERANCE ENVELOPE Output Load Current (%) egatloV tuptuO VNOM -4% 2%Typical Load Line 100755025 10 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 specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions MEV 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 specific agency approvals, such as the MEV 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 MEV 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 specified 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 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs 150100500-40 0.5 1.0 1.5 Safe Operating Area 85°C Ambient Temperature (°C) Output Power (W)

3kVDC Isolated 1W Single Output DC/DC Converters KDC_MEVC.A01 Page 3 of 4 Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232www.murata-ps.com RIPPLE & NOISE CHARACTERISATION METHOD All measurement to be taken with the following components connected to the UUT as detailed below. 50 Ohm coax cable, solder connections one end, BNC plug at the other end. C1 – 1μF X7R multilayer ceramic capacitor rated at minimum 3 x the output voltage of the UUT C2 – 10μF tantalum capacitor rated at minimum 1.5 x the output voltage of the UUT with ESR of less than 100 milliohms at 100 kHz e.g. AVX TPS series. C3 – 100nF multilayer ceramic capacitor, general purpose R1 – 450 Ohm resistor, carbon film, ±1% R2 – 50 Ohm BNC termination T1 – 3T of the coax cable through a ferrite toroid eg Ferroxcube TN32/19/13-3E25 RLOAD – Resistive load at the UUT maximum rating. Connections via twisted wires. Differential Mode Noise Test Schematic OSCILLOSCOPE Y INPUT SUPPLY C1 C2 C3 R1 T1 R2 Input Output DC/DC Converter R LOAD + + - - EFFICIENCY VS LOAD MEV 5V Input Voltage MEV 12V Input Voltage 0 1 02 03 04 05 06 07 08 09 0 1 0 0 Load (%) Efficiency (%) 12V 15V 0 1 02 03 04 05 06 07 08 09 0 1 0 0 Load (%) Efficiency (%) 15V 12V

3kVDC Isolated 1W Single Output DC/DC Converters KDC_MEVC.A01 Page 4 of 4 Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232www.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 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. Specifications are subject to change without notice. © 2008 Murata Power Solutions, Inc. USA: Mansfield (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 France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Germany: München, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DETAILS TUBE OUTLINE DIMENSIONS PIN CONNECTIONS Pin Function 1+ V IN 2- V IN 5- V OUT 7+ V OUT 12 5 7 0.77 (19.50) 0.236 (6.00) 0.394 (10.00) 0.181 (4.60) 0.142 (3.60) 0.0118 (0.30) 0.0079 (0.20) 0.099 (2.52) 0.061 (1.54) 0.0016 (0.40) Min. 0.1 (2.54) MEV1S0505SC XYYWWi 0.50 (0.020) Weight: 2.3g 0.1 (2.54) 0.1 (2.54) Ø

4 HOLES

0.040 (1.00) Unless otherwise stated all dimensions in inches (mm) ±0.5mm. Tube length : 20.47 (520mm ±2mm). Tube Quantity : 25 Unless otherwise stated all dimensions in inches (mm) ±0.5mm.