MEV Series 3kVDC Isolated 1W Single Output DC/DC Converters Wide temperature performance at full 1 Watt load, –40°C to 85°C No heatsink required Parameter Industry standard pinout Voltage range Reflected ripple current 5V & 12V input Fully encapsulated with toroidal magnetics No external components required No electrolytic or tantalum capacitors 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 switching noise. The MEV series is currently available in an industry SIP 7 package. 30 20 20 15 15 15 15 15 % % pF kHrs 80.5 82.5 84 84.5 80 83 84 82 84 86 87 87 83.5 86 87 87 38 42 40 39 28 50 70 59 3583 3286 2886 2419 3308 3054 2705 2290 MTTF2 Isolation Capacitance mVp-p Efficiency (Min.) 20 12 10 8 12 8 7 7 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 5V, 9V, 12V, & 15V output 6 5 5.5 5 4.8 3.2 3.1 2.8 % 5.2 4 4.5 4.2 4.4 2.9 2.9 2.4 Ripple & Noise (Max)1 233 227 226 225 98 96 94 94 Load Regulation (Typ) mA 200 111 84 67 200 111 84 67 UL 94V-0 package material 3kVDC isolation (1 minute) Input Current at Rated Load mA 5 9 12 15 5 9 12 15 Efficiency (Typ.) Power density 0.85W/cm3 V 5 5 5 5 12 12 12 12 Ripple & Noise (Typ)1 Efficiency from 80% V MEV1S0505SC MEV1S0509SC MEV1S0512SC MEV1S0515SC MEV1S1205SC MEV1S1209SC MEV1S1212SC MEV1S1215SC Load Regulation (Max) RoHS compliant Output Voltage FEATURES Nominal Input Voltage Order Code Output Current SELECTION GUIDE Conditions Min. Typ. Max. Continuous operation, 5V input types Continuous operation, 12V input types 5V input types 12V input types 4.5 10.8 5 12 11 5 5.5 13.2 20 15 Units Typ. Max. Units 1 W 1.05 1.2 %/% Typ. Max. Units V mA p-p ABSOLUTE MAXIMUM RATINGS Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN, MEV05 types Input voltage VIN, MEV12 types 300°C 300mW 7V 15V OUTPUT CHARACTERISTICS Parameter Conditions Rated Power Voltage Set Point Accuracy Line regulation TA=-40°C to 85°C See tolerance envelope High VIN to low VIN Min. ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 minute Viso= 1000VDC 3000 10 VDC GΩ GENERAL CHARACTERISTICS Parameter Conditions Switching frequency 5V input types 12V input types Min. Typ. Max. 60 75 Units kHz TEMPERATURE CHARACTERISTICS For full details go to www.murata-ps.com/rohs www.murata-ps.com Parameter Conditions Min. Specification Storage All output types -40 -50 Case Temperature above ambient Cooling 5V output types All other output types Free air convection Typ. Max. Units 85 125 20 20 °C 1. See Ripple & Noise characterisation method. 2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_MEVC.A01 Page 1 of 4 MEV Series 3kVDC Isolated 1W Single Output DC/DC Converters TEMPERATURE DERATING GRAPH TOLERANCE ENVELOPE 5% 85°C 1.0 0.5 0 -40 Output Voltage Output Power (W) 1.5 Safe Operating Area 100 50 0 Ambient Temperature (°C) 150 2% Typic a l Loa VNOM 10 25 d Lin 50 e 0% -4% 100 75 Output Load Current (%) 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 www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_MEVC.A01 Page 2 of 4 MEV Series 3kVDC Isolated 1W Single Output DC/DC Converters 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 C3 – 100nF multilayer ceramic capacitor, general purpose R1 – 450 Ohm resistor, carbon film, ±1% than 100 milliohms at 100 kHz e.g. AVX TPS series. 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 DC/DC Converter OSCILLOSCOPE C1 C2 C3 + Input SUPPLY R1 R2 T1 + Y INPUT Output - - R LOAD EFFICIENCY VS LOAD MEV 5V Input Voltage MEV 12V Input Voltage 90 90 80 15V 12V 9V 5V 70 60 Efficiency (%) Efficiency (%) 80 50 40 30 70 15V 12V 9V 5V 60 50 40 30 20 20 10 10 0 0 10 20 30 40 50 Load (%) www.murata-ps.com 60 70 80 90 100 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_MEVC.A01 Page 3 of 4 MEV Series 3kVDC Isolated 1W Single Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DETAILS 4 HOLES 0.77 (19.50) (1.15) Ø 0.045 0.040 (1.00) 0.236 (6.00) 0.00394 (0.1) 0.1 (2.54) 0.394 (10.00) MEV1S0505SC 0.0016 (0.40) Min. XYYWWi 1 2 0.181 (4.60) 0.142 (3.60) 5 7 0.1 (2.54) 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) 0.0079 (0.20) TUBE OUTLINE DIMENSIONS 0.049 (1.25) 0.6 (15.24) Weight: 2.3g 1 2 5 7 Function +VIN -VIN -VOUT +VOUT PIN CONNECTIONS Pin 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. Unless otherwise stated all dimensions in inches (mm) ±0.5mm. Tube length : 20.47 (520mm ±2mm). 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 USA: Mansfield (MA), Tel: (508) 339 3000, email: [email protected] Canada: Toronto, Tel: (866) 740 1232, email: [email protected] UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] www.murata-ps.com email: [email protected] ISO 9001 & ISO 14001 REGISTERED 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. www.murata-ps.com Tube Quantity : 25 Singapore: Parkway Centre, Tel: +65 6348 9096, email: [email protected] Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_MEVC.A01 Page 4 of 4