MEV3 Series 3kVDC Isolated 3W Single Output DC/DC Converters SELECTION GUIDE Order Code 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 MEV3S0515SC 5 15 200 700 5 6 18 30 85 87.5 40 5426 FEATURES MEV3S1205SC 12 5 600 300 4.5 6 34 50 81.5 84 34 6063 RoHS compliant MEV3S1209SC 12 9 333 280 3.6 5 22 35 85.5 87.5 50 6056 Typical ef ciency from 83% MEV3S1212SC 12 12 250 280 3.2 4.5 16 30 86 88 63 6572 3 MEV3S1215SC 12 15 200 280 2.8 4 13 30 87 89 70 5754 Power density 1.9W/cm Wide temperature performance at full INPUT CHARACTERISTICS 3 Watt load, 40C to 85C Parameter Conditions Min. Typ. Max. Units Continuous operation, 5V input types 4.5 5 5.5 UL 94V-0 package material Voltage range V Continuous operation, 12V input types 10.8 12 13.2 No heatsink required 5V input types 8 18 Re ected ripple current mA p-p 12V input types 6.5 15 Industry standard pinout 3kVDC isolation (1 minute) OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units 5V & 12V input Rated Power 3W TA=-40C to 85C 5V, 9V, 12V, & 15V output Voltage Set Point Accuracy See tolerance envelope Line regulation High VIN to low VIN 1.01 1.1 %/% Fully encapsulated with toroidal magnetics ISOLATION CHARACTERISTICS No external components required Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 minute 3000 VDC No electrolytic or tantalum capacitors Resistance Viso= 1000VDC 10 G 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 Speci cation All output types -40 85 industrial temperature range of -40C to 85C. Storage -50 125 C Available in an industry standard SIP package, MEV3S0505SC 37 Case Temperature rise 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 benet of ABSOLUTE MAXIMUM RATINGS 3kVDC galvanic isolation. Lead temperature 1.5mm from case for 10 seconds 260C 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 speci cations typical at TA=25C, nominal input voltage and rated output current unless otherwise speci 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 Nominal Input Voltage Output Voltage Output Current Input Current at Rated Load Load Regulation (Typ) Load Regulation (Max) Ripple & Noise 1 (Typ) Ripple & Noise 1 (Max) Ef ciency (Min.) Ef ciency (Typ.) Isolation Capacitance 2 MTTFTypical Load Line MEV3 Series 3kVDC Isolated 3W Single Output DC/DC Converters TEMPERATURE DERATING GRAPH OUTPUT VOLTAGE TOLERANCE ENVELOPE 5% 4.5 2% 85C VNOM 0% 3.0 1.5 Safe Operating Area -4% 50 75 100 10 25 Output Load Current (%) 0 -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 speci 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 speci 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 speci 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 260C for 10 seconds. The pin termination 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 Output Power (W) Output Voltage