MEE1 Series www.murata-ps.com Isolated 1W Single Output DC/DC Converters Operation to zero load Single isolated output 1kVDC isolation Efficiency up to 87% typical Wide temperature performance at full 1 watt load, –40°C to 85°C Power density from 1.305W/cm3 Industry standard pinout 3.3V, 5V, 12V, 15V & 24V input 3.3V, 5V, 9V, 12V and 15V output Custom solutions available Pin compatible with LME, NME, NKE & NML series PCB mounting DESCRIPTION The MEE1 series is the new high performance version of our 1W NME series. The MEE1 series is more efficient and offers improved regulation performance 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 1kVDC galvanic isolation to reduce switching noise. Isolation Capacitance (Typ) 50 50 40 40 35 45 40 35 35 30 40 35 35 35 40 35 35 30 50 40 35 35 377 360 361 352 350 246 237 238 233 230 97 97 97 95 79 79 77 76 49 50 49 49 76 79 79 81 82 76 80 80 81 83 79 79 82 81 77 77 78 83 75 74 79 78 78.5 81.5 81.5 84 84.5 80 83 83.5 85 85.5 83.5 84 85 86.5 83.5 83 85 86.5 83 83 85.5 86 42 44 47 48 50 39 46 53 49 46 47 77 79 81 41 65 77 100 51 70 89 101 3852 4008 4930 4040 3792 3213 3990 4526 3756 3240 3857 4370 3774 3779 3312 3451 3940 3420 3983 4255 3991 3532 SIP 3.3 3.3 3.3 3.3 3.3 5 5 5 5 5 12 12 12 12 15 15 15 15 24 24 24 24 3.3 5 9 12 15 3.3 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 303 200 111 83 67 303 200 111 83 67 200 111 83 67 200 111 83 67 200 111 83 67 10 9.2 10 8.7 7.8 8 5.6 6.8 6.5 5.7 5 5.8 4.8 4.2 4.2 5.1 4.3 3.8 3.6 4 3.4 3 12 11 12 11 10 10 7 9 8 8 7 8 6 7 6 7 5 5 5 6 5 5 26 23 15 14 12 22 19 13 11 9 16 12 10 9 15 12 11 8 19 17 11 9 50 50 40 40 35 45 40 35 35 30 40 35 35 35 40 35 35 30 50 40 35 35 377 360 361 352 350 246 237 238 233 230 97 97 97 95 79 79 77 76 49 50 49 49 76 79 79 81 82 76 80 80 81 83 79 79 82 81 77 77 78 83 75 74 79 78 78.5 81.5 81.5 84 84.5 80 83 83.5 85 85.5 83.5 84 85 86.5 83.5 83 85 86.5 83 83 85.5 86 42 44 47 48 50 39 46 53 49 46 47 77 79 81 41 65 77 100 51 70 89 101 3852 4008 4930 4040 3792 3213 3990 4526 3756 3240 3857 4370 3774 3779 3312 3451 3940 3420 3983 4255 3991 3532 DIP mVp-p mA Efficiency (Typ) % Package Style 26 23 15 14 12 22 19 13 11 9 16 12 10 9 15 12 11 8 19 17 11 9 MTTF1 kHrs 12 11 12 11 10 10 7 9 8 8 7 8 6 7 6 7 5 5 5 6 5 5 % Efficiency (Min) pF 10 9.2 10 8.7 7.8 8 5.6 6.8 6.5 5.7 5 5.8 4.8 4.2 4.2 5.1 4.3 3.8 3.6 4 3.4 3 Ripple & Noise (Max) mA 303 200 111 83 67 303 200 111 83 67 200 111 83 67 200 111 83 67 200 111 83 67 Load Regulation (Typ) V 3.3 5 9 12 15 3.3 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 Output Current V 3.3 3.3 3.3 3.3 3.3 5 5 5 5 5 12 12 12 12 15 15 15 15 24 24 24 24 Output Voltage Ripple & Noise (Typ) UL60950 recognized MEE1S0303SC MEE1S0305SC MEE1S0309SC MEE1S0312SC MEE1S0315SC MEE1S0503SC MEE1S0505SC MEE1S0509SC MEE1S0512SC MEE1S0515SC MEE1S1205SC MEE1S1209SC MEE1S1212SC MEE1S1215SC MEE1S1505SC MEE1S1509SC MEE1S1512SC MEE1S1515SC MEE1S2405SC MEE1S2409SC MEE1S2412SC MEE1S2415SC MEE1S0303DC MEE1S0305DC MEE1S0309DC MEE1S0312DC MEE1S0315DC MEE1S0503DC MEE1S0505DC MEE1S0509DC MEE1S0512DC MEE1S0515DC MEE1S1205DC MEE1S1209DC MEE1S1212DC MEE1S1215DC MEE1S1505DC MEE1S1509DC MEE1S1512DC MEE1S1515DC MEE1S2405DC MEE1S2409DC MEE1S2412DC MEE1S2415DC Load Regulation (Max) FEATURES Nominal Input Voltage Order Code Input Current at Rated Load SELECTION GUIDE 1. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load. For full details go to www.murata-ps.com/rohs All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. www.murata-ps.com/support KDC_MEE1.C01 Page 1 of 7 MEE1 Series Isolated 1W Single Output DC/DC Converters INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Continuous operation, 3.3V input types Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 15V input types Continuous operation, 24V input types 3.3V, 5V & 12V Input types 15V Input types 24V Input types 2.97 4.5 10.8 13.5 21.6 3.3 5.0 12.0 15 24 5 3 4 3.63 5.5 13.2 16.5 26.4 20 10 10 Parameter Conditions Min. Typ. Max. Units Rated Power Voltage Set Point Accuracy TA=-40°C to 85°C See tolerance envelope 1.0 W Line regulation High VIN to low VIN 1.15 1.1 %/% Voltage range Reflected ripple current Units V mA p-p OUTPUT CHARACTERISTICS 3.3V Input All other inputs 1.0 1.0 ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 second Viso= 1000VDC 1000 10 Parameter Conditions Min. Switching frequency 3.3V input types 5V input types 12V input types 15V input types 24V input types Typ. Max. Units VDC GΩ GENERAL CHARACTERISTICS Typ. Max. 47 60 70 77 80 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types -40 -50 Cooling MEE1S0303XC All other types Free air convection ABSOLUTE MAXIMUM RATINGS Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN, MEE1S03 types Input voltage VIN, MEE1S05 types Input voltage VIN, MEE1S12 types Input voltage VIN, MEE1S15 types Input voltage VIN, MEE1S24 types All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. Max. Units 85 125 30 25 °C TEMPERATURE DERATING GRAPH 260°C 450mW 5.5V 7V 15V 18V 28V 1.5 Output Power (W) Case Temperature above ambient Typ. 1.0 0.5 85°C Safe Operating Area 120°C 0 -40 100 50 0 Ambient Temperature (°C) 150 www.murata-ps.com/support KDC_MEE1.C01 Page 2 of 7 MEE1 Series Isolated 1W Single Output DC/DC Converters TOLERANCE ENVELOPES The voltage tolerance envelopes show typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to changes in output loading and set point accuracy. 3.3V Input & 0503 5V Output +2% +2% Output Voltage Output Voltage +12% +7% +2% VNOM -5% -6% 10 25 75 50 Output Load Current (%) 100 10 25 100 12V Output +8% +1% +1% Output Voltage Output Voltage 9V Output 75 50 Output Load Current (%) +7% +1% VNOM -3% -3% 10 25 75 50 Output Load Current (%) 100 10 25 75 50 Output Load Current (%) 100 Output Voltage 15V Output +6% +1% +1% -3% 10 25 75 50 Output Load Current (%) 100 www.murata-ps.com/support KDC_MEE1.C01 Page 3 of 7 MEE1 Series Isolated 1W Single Output DC/DC Converters RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260°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 EFFICIENCY VS LOAD 5V Input 90 70 70 Efficiency (%) Efficiency (%) 3.3V Input 90 50 MEE1S0303SC MEE1S0305SC 30 MEE1S0309SC 50 MEE1S0503SC MEE1S0505SC 30 MEE1S0509SC MEE1S0312SC 10 0 MEE1S0512SC MEE1S0315SC MEE1S0515SC 10 20 40 60 80 100 0 20 40 Load (%) 12V Input 90 90 70 70 50 MEE1S1205SC 30 MEE1S1209SC MEE1S1505SC 30 MEE1S1509SC MEE1S1512SC MEE1S1215SC 10 20 100 50 MEE1S1212SC 0 80 15V Input Efficiency (%) Efficiency (%) 60 Load (%) 40 60 80 MEE1S1515SC 10 100 Load (%) 0 20 40 60 80 100 Load (%) 24V Input 90 Efficiency (%) 70 50 MEE1S2405SC 30 MEE1S2409SC MEE1S2412SC MEE1S2415SC 10 0 20 40 60 80 100 Load (%) www.murata-ps.com/support KDC_MEE1.C01 Page 4 of 7 MEE1 Series Isolated 1W Single Output DC/DC Converters APPLICATION NOTES Minimum Load The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in an increase in output voltage, which may rise to typically 1.25 times the specified 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. Start-up time Start-up time μs μs MEE1S0303XC 355 MEE1S1209XC 818 MEE1S0305XC 622 MEE1S1212XC 1285 MEE1S0309XC 1542 MEE1S1215XC 2052 MEE1S0312XC 2410 MEE1S1505XC 260 MEE1S0315XC 3346 MEE1S1509XC 642 MEE1S0503XC 334 MEE1S1512XC 993 MEE1S0505XC 402 MEE1S1515XC 1574 MEE1S0509XC 1316 MEE1S2405XC 221 MEE1S0512XC 1776 MEE1S2409XC 541 MEE1S0515XC 2232 MEE1S2412XC 860 MEE1S1205XC 285 MEE1S2415XC 1049 Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1μF X7R multilayer 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 film, ±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 specified values. Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 + SUPPLY Input - + R1 T1 R2 Y INPUT Output - R LOAD www.murata-ps.com/support KDC_MEE1.C01 Page 5 of 7 MEE1 Series Isolated 1W Single Output DC/DC Converters 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 MEE1 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 MEE1 has been recognized by Underwriters Laboratory for functional insulation, 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 MEE1 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. PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 8 PIN DIP DIP Package SIP Package 11.48 (0.45) MEE1S0505DC XYYWW 9.80 (0.386) 6.00 (0.236) Pin Function 1 4 5 7 -VIN +VIN +VOUT -VOUT PIN CONNECTIONS - 4 PIN SIP 11.50 (0.453) MEE1S0505SC 6.80 (0.268) 10.0 (0.394) XYYWW 0.55 (0.022) 0.45 (0.018) 4.60 (0.181) 3.60 (0.142) 1 0.55 (0.022) 0.45 (0.018) 1 2 3 4.60 (0.181) 3.60 (0.142) 4 Function 1 2 3 4 -VIN +VIN -VOUT +VOUT 4 0.55 (0.022) 0.45 (0.018) 1.69 (0.067) 2.41 (0.094) 1.09 (0.043) Pin 0.30 (0.0118) 0.20 (0.0078) 7.62 (0.3) 7 1.25 (0.049) 5 0.30 (0.0118) 0.20 (0.0078) 5.08 (0.2) 7.62 (0.3) 1.94 (0.0764) 7.62 (0.3) Weight: 1.28g (SIP), 1.56g (DIP) All dimensions in mm ±0.25mm (inches ±0.01). All pins on a 2.54 (0.1) pitch and within ± 0.25 (0.01) of true position. www.murata-ps.com/support KDC_MEE1.C01 Page 6 of 7 MEE1 Series Isolated 1W Single Output DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 4 Pin SIP Package 8 Pin DIP Package 4 HOLES 0.1 (0.00394) 1.15 (0.0453) Ø 1.00 (0.0394) 2.54 (0.1) 2.54 (0.1) 4 HOLES 0.1 (0.00394) Ø 1.15 (0.0453) 1.00 (0.0394) 2.54 (0.1) 2.54 (0.1) TUBE OUTLINE DIMENSIONS 4 Pin SIP Tube 8 Pin DIP Tube 5.07 (0.2) 0.50 (0.020) 18.00 (0.709) 14.50 (0.571) 12.43 (0.489) 9.30 (0.366) 12.0 (0.472) 5.10 (0.2) 0.65 (0.026) 5.00 (0.2) Unless otherwise stated all dimensions in mm (inches) ±0.5mm. Tube length (8 Pin DIP) : 520mm ±2mm (20.47). Tube length (4 Pin SIP) : 520mm ±2mm (20.47). Tube Quantity : 35 SAFETY APPROVAL The MEE1 series has been recognized by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature for 3.3V & 5V input models of 60°C and for 12V, 15V and 24V models of 85°C. File number E151252 applies. The MEE1 Series of converters are not internally fused so to meet the requirements of UL 60950 an anti-surge input line fuse should always be used with ratings as defined below. MEE1S03xxxC: 1A MEE1S05xxxC: 0.7A MEE1S12xxxC: 0.2A MEE1S15xxxC: 0.2A MEE1S24xxxC: 0.16A All fuses should be UL approved and rated to at least the maximum allowable DC input voltage. Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ 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. © 2012 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_MEE1.C01 Page 7 of 7