MEE3 Series www.murata-ps.com 1kVDC Isolated 3W Single Output DC/DC Converters SELECTION GUIDE Order Code V V mA mA % mVp-p % % pF MHrs MEE3S0505SC 5 5 600 703 6.3 8 46 70 80 83 32 3.9 MEE3S0509SC 5 9 333 677 5.2 6.5 28 45 84 87 50 2.9 MEE3S0512SC 5 12 250 691 4.7 6 26 45 83 86 41 4.2 MEE3S0515SC 5 15 200 679 4.7 6.5 24 45 85 88 51 2.5 FEATURES MEE3S1205SC 12 5 600 290 4.3 6 41 60 82 85 42 3.6 n UL 60950 recognized MEE3S1209SC 12 9 333 280 3.5 5 21 40 84 88 66 3.7 n RoHS compliant MEE3S1212SC 12 12 250 280 3 4.5 19 40 84 88 77 3.4 MEE3S1215SC 12 15 200 277 2.7 4 21 40 85 89 91 3.4 n Typical efficiency from 83% 3 n Power density 2.68W/cm INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units n Wide temperature performance at full Continuous operation, 5V input types 4.5 5 5.5 3 3 Watt load, 40C to 85C Voltage range V Continuous operation, 12V input types 10.8 12 13.2 n UL 94V-0 package material 5V input types 5 15 Reflected ripple current mA p-p 12V input types 5 15 n No heatsink required n Industry standard pinout OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units n 5V & 12V input Rated Power 3 W TA=-40C to 85C n 5V, 9V, 12V, & 15V output Voltage Set Point Accuracy See tolerance envelope Line regulation High VIN to low VIN 1.01 1.1 %/% n Fully encapsulated with toroidal magnetics ISOLATION CHARACTERISTICS n No external components required Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 second 1000 VDC n No electrolytic or tantalum capacitors Resistance Viso= 1000VDC 10 G PRODUCT OVERVIEW GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units The MEE3 series is a new range of high Switching frequency 60 kHz performance 3W DC/DC converters, offering 3W of available output power in a previously rated 2W package capable of operation over the full TEMPERATURE CHARACTERISTICS 3 Parameter Conditions Min. Typ. Max. Units industrial temperature range of -40C to 85C . Specification All output types -40 85 Available in an industry standard SIP package, with a pin compatible power upgrade path from Storage -50 125 the 1W NME/NKE and 2W NML series, they are MEE3Sxx05SC, MEE3S0512C 40 C Case Temperature rise ideally suited for providing local supplies on MEE3S0515C, MEE3S1209C, MEE3S1212C 35 above ambient control system boards with the added benefit of MEE3S1215C, MEE3S0509C 30 1kVDC galvanic isolation. Cooling Free air convection ABSOLUTE MAXIMUM RATINGS Lead temperature 1mm from case for 10 seconds 260C Input voltage VIN, MEE3S05 types 7V Input voltage VIN, MEE3S12 types 15V 1. See Ripple & Noise characterisation method. 2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load. 3. See safety approval section on page 2. All specifications typical at T A=25C, nominal input voltage and rated output current unless otherwise specified. For full details go to www.murata-ps.com/rohs www.murata-ps.com All enquiries: www.murata-ps.com/support KDC MEE3C.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) Efficiency (Min.) Efficiency (Typ.) Isolation Capacitance 2 MTTFTypical Load Line Typical Load Line MEE3 Series 1kVDC Isolated 3W Single Output DC/DC Converters TEMPERATURE DERATING GRAPH OUTPUT VOLTAGE TOLERANCE ENVELOPE 5% 5% 4.5 2% 1% 85C VNOM VNOM 0% 0% 3.0 -3% 1.5 Safe Operating Area -4% 50 75 100 50 75 100 10 25 10 25 Output Load Current (%) 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 specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions MEE3 series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second. A question commonly asked is, What is the continuous voltage that can be applied across the part in normal operation The MEE3 series has been recognized by Underwriters Laboratory for functional isolation. 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 sys- tem. 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 MEE3 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 260C for 10 seconds. The pin termination finish 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 SAFETY APPROVAL The MEE3 series has been recognized by Underwriters Laboratory (UL) to UL 60950 for functional isolation in a maximum still air ambient temperature of 63C and/or case tempera- ture limit of 91C. Case temperature measured on the face opposite the pins. File number E179522 applies. The MEE3 series of converters are not internally fused so to meet the requirement of UL 60950, an input line fuse should always be used. An anti-surge 2.5A should be used for MEE3S05xxSC models, and an anti-surge 1A should be used for MEE3S12xxSC models. All fuses should be UL approved and rated to at least the maximum allowable DC input voltage. www.murata-ps.com All enquiries: www.murata-ps.com/support KDC MEE3C.A01 Page 2 of 5 Output Power (W) Output Voltage Output Voltage