MEJ2 Series www.murata-ps.com 5.2kVDC Isolated 2W DC/DC Converters FEATURES RoHS compliant Basic/supplementary isolation to UL 609502 UL60601 (3rd Ed) recognition2 Power density 0.81W/cm3 Single and dual outputs UL 94V-0 package material Footprint 1.96cm2 SIP package style 5.2kVDC isolation 3.3V, 5V, 12V & 15V inputs 3.3V, 5V, 9V, 12V & 15V output Internal SMD construction Fully encapsulated with toroidal magnetics Pin compatible with the MEV, NMV, NMK, & NMJ series MTTF up to 4200 million hours PRODUCT OVERVIEW The MEJ2 series are single and dual output medically approved DC/DC converters in a 7 pin SIP package style offering a power upgrade path from the NMJ series SIP DC/DC converters. The MEJ2 series is UL 60950 and UL 60601 recognized, which makes it ideal for applications where safety and miniaturisation are of paramount importance. MEJ2S0303SC MEJ2S0305SC MEJ2S0503SC MEJ2S0505SC MEJ2S0509SC MEJ2S0512SC MEJ2S0515SC MEJ2S1203SC MEJ2S1205SC MEJ2S1209SC MEJ2S1212SC MEJ2S1215SC MEJ2S1505SC MEJ2S1509SC MEJ2S1512SC MEJ2S1515SC MEJ2D0503SC MEJ2D0505SC MEJ2D0509SC MEJ2D0512SC MEJ2D0515SC MEJ2D1203SC MEJ2D1205SC MEJ2D1209SC MEJ2D1212SC MEJ2D1215SC MEJ2D1505SC MEJ2D1509SC MEJ2D1512SC MEJ2D1515SC mA 606 756 400 784 606 528 400 503 222 505 167 495 133 488 606 207 400 214 222 205 167 207 133 205 400 171 222 165 167 164 133 166 ±303 535 ±200 508 ±111 510 ±83 504 ±67 492 ±303 205 ±200 212 ±111 206 ±83 208 ±67 203 ±200 170 ±111 163 ±83 167 ±67 167 % 14.0 13.0 10.0 8.5 8.0 8.0 7.0 9.5 8.0 7.0 6.5 7.0 8.5 6.5 6.5 7.0 8.5 7.5 6.5 5.0 6.5 8.0 7.0 5.5 5.5 6.0 7.0 5.5 5.5 5.5 17 15 15 10 11 12 10 11 10 10 8 10 10 8 8 8 10 9 8 8 7 9 8 7 7 7 9 7 7 7 mVp-p 38 55 50 65 40 55 43 55 36 50 40 55 34 45 43 60 43 60 35 50 35 50 32 45 44 60 35 50 38 55 36 50 26 40 34 50 27 40 27 40 20 35 37 55 32 45 27 40 27 40 24 40 37 50 26 40 26 40 23 35 % 67 70 67 72 75 74 76 70 75 75 76 76 73 74 74 74 67 72 76 77 76 72 75 77 77 78 74 76 75 75 70 74 70 75 78 77 79 73 78 79 80 80 76 78 79 78 71 76 79 80 79 75 79 81 81 82 78 80 80 79 MTTF2 Efficiency (Typ) Efficiency (Min) Ripple & Noise (Max)3 Ripple & Noise (Typ)3 Load Regulation (Max) Load Regulation (Typ) V 3.3 5 3.3 5 9 12 15 3.3 5 9 12 15 5 9 12 15 ±3.3 ±5 ±9 ±12 ±15 ±3.3 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 Input Current at Rated Load V 3.3 3.3 5 5 5 5 5 12 12 12 12 12 15 15 15 15 5 5 5 5 5 12 12 12 12 12 15 15 15 15 Output Current Output Voltage Order Code Nominal Input Voltage SELECTION GUIDE kHrs 3910 3757 3830 3654 3472 3663 2629 3259 3200 2453 2779 2707 2638 2203 2330 2100 3969 3654 3472 3663 2629 3270 3268 2453 2779 2707 2638 2203 2330 2100 INPUT CHARACTERISTICS Parameter Voltage range Input reflected ripple Conditions Min. Typ. Max. Continuous operation, 3V input types Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 15V input types 3.3V input types 5V input types 12V & 15V input types 2.97 4.5 10.8 13.5 3.3 5 12 15 100 60 22 3.63 5.5 13.2 16.5 140 90 40 Units V mA 1. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load. 2. See safety approvals section for limitations of use. 3. See ripple & noise test method. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support KDC_MEJ2C.B01 Page 1 of 7 MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions TA=-40ºC to 85ºC Rated Power2 Voltage Set Point Accuracy Line regulation Min. See tolerance envelopes High VIN to low VIN Typ. Max. Units 2 W 1.0 1.2 %/% Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Short-circuit protection Lead temperature 1mm from case for 10 seconds Input voltage VIN, MEJ2x03xxSC Input voltage VIN, MEJ2x05xxSC Input voltage VIN, MEJ2x12xxSC Input voltage VIN, MEJ2x15xxSC 10 minutes 260°C 5V 7V 15V 18V ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Isolation capacitance Flash tested for 1 second Viso= 500VDC 5200 Parameter Conditions Min. Switching frequency All types VDC GΩ pF 1 4 GENERAL CHARACTERISTICS Typ. Max. 45 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types (see safety approval section for limitations) -40 -55 Case Temperature above ambient Cooling Typ. Max. Units 85 125 MEJ2S0509SC, MEJ2S0512SC, MEJ2S0515SC, MEJ2S1209SC, MEJ2x1212SC, MEJ2S1215SC, MEJ2S1509SC, MEJ2S1512SC, MEJ2S1515SC 27 MEJ2S0503SC, MEJ2S0505SC, MEJ2S1203SC, MEJ2S1205SC, MEJ2x1505SC, MEJ2S1515SC, MEJ2D0512SC, MEJ2D0515SC, MEJ2D1209SC, MEJ2D1215SC 30 MEJ2S0305SC, MEJ2S0303SC, MEJ2S1203SC, MEJ2D0505SC, MEJ2D0509SC, MEJ2D1205SC, MEJ2D1509SC, MEJ2D1512SC 33 °C 37 MEJ2D01203SC, MEJ2D0503SC Free air convection Output Power (W) TEMPERATURE DERATING GRAPH 2.0 1.0 0.2 -40 Safe Operating Area 0 40 85 Ambient Temperature (ºC) UL60950 recognition to a maximum ambient temperature of 85ºC and/or case temperature limit of 155ºC, measured on the face opposite the pins. www.murata-ps.com/support KDC_MEJ2C.B01 Page 2 of 7 MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters TOLERANCE ENVELOPE 3.3V in, 3.3V output types All other output types +10% +9% -7% -17% 10 75 50 25 Output Load Current (%) 100 VNOM Output Voltage Output Voltage +2.5% +1% VNOM -7.5% 10 75 50 25 Output Load Current (%) 100 The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation 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 MEJ2 series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 5.2kVDC for 1 second. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The MEJ2 series has been recognized by Underwiters Laboratory for various voltages, please see safety approval section below. 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. 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. SAFETY APPROVAL UL 60601 The MEJ2 series has been recognized by Underwriters Laboratory (UL) to the 3rd edition of 60601 and provides the following MOOP (means of operator protection), in a maximum ambient temperature of 85°C and/or case temperature limit of 130°C (case temperature measured on the face opposite the pins): 2 MOOP based upon a working voltage of 200 Vrms max. and 280 Vpkmax., between Primary and Secondary and 1 MOOP based upon a working voltage of 200 Vrms max., between Primary and its Enclosure. File Number E202895 applies. UL 60950 The MEJ2 series has been recognized by Underwriters Laboratory (UL) to UL 60950 for basic/supplementary insulation to a working voltage of 200Vrms in a maximum ambient temperature of 85°C and/or case temperature limit of 130°C (case temperature measured on the face opposite the pins). File number E151252 applies. FUSING The MEJ2 Series of converters are not internally fused so to meet the requirements of UL an anti-surge input line fuse should always be used with ratings as defined below. MEJ2x03xxxC: 2A MEJ2x05xxxC: 2A MEJ2x12xxxC: 750mA MEJ2x15xxxC: 750mA All fuses should be UL recognized and rated to at least the maximum allowable DC input voltage. RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC for 10 seconds. The pin termination finish on this product series is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com/support KDC_MEJ2C.B01 Page 3 of 7 MEJ2 Series 5.2kVDC Isolated 2W 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 double 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. MEJ2S0303SC MEJ2S0305SC MEJ2S0503SC MEJ2S0505SC MEJ2S0509SC MEJ2S0512SC MEJ2S0515SC MEJ2S1203SC MEJ2S1205SC MEJ2S1209SC MEJ2S1212SC MEJ2S1215SC MEJ2S1505SC MEJ2S1509SC MEJ2S1512SC Start-up time ms 0.89 1.89 1.08 2.04 6.5 8.29 11.4 0.73 1.61 4.04 5.51 7.61 1.33 3.37 4.47 MEJ2S1515SC MEJ2D0503SC MEJ2D0505SC MEJ2D0509SC MEJ2D0512SC MEJ2D0515SC MEJ2D1203SC MEJ2D1205SC MEJ2D1209SC MEJ2D1212SC MEJ2D1215SC MEJ2D1505SC MEJ2D1509SC MEJ2D1512SC MEJ2D1515SC Typical Start-Up Wave Form Start-up time ms 6.05 1.57 1.79 9.32 14.9 20.84 1.03 2.51 6.46 9.94 14.54 1.79 5.16 7.04 10.48 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_MEJ2C.B01 Page 4 of 7 MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters EFFICIENCY VS LOAD 90 90 80 80 70 70 Efficiency (%) MEJ2S05XXSC Efficiency (%) MEJ2S03XXSC 60 5V 3.3V 50 40 15V 12V 9V 5V 3.3V 60 50 40 30 30 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 0 100 10 20 30 40 Load (%) MEJ2S12XXSC MEJ2S15XXSC 90 90 80 80 70 80 90 100 80 90 100 70 Efficiency (%) 70 Efficiency (%) 50 60 Load (%) 15V 12V 9V 5V 3.3V 60 50 40 30 60 15V 12V 9V 5V 50 40 30 20 20 10 10 0 0 0 10 20 30 40 50 60 Load (%) 70 80 90 100 0 10 20 30 40 50 60 Load (%) 70 www.murata-ps.com/support KDC_MEJ2C.B01 Page 5 of 7 MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters EFFICIENCY VS LOAD MEJ2D05XXSC MEJ2D12XXSC 90 90 80 80 70 60 Efficiency (%) Efficiency (%) 70 15V 12V 9V 5V 3.3V 50 40 30 15V 12V 9V 5V 3.3V 60 50 40 30 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) 0 10 20 30 40 50 60 70 80 90 100 Load (%) MEJ2D15XXSC 90 80 Efficiency (%) 70 60 15V 12V 9V 5V 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) www.murata-ps.com/support KDC_MEJ2C.B01 Page 6 of 7 MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters PACKAGE SPECIFICATIONS PIN CONNECTIONS MECHANICAL DIMENSIONS 19.65 (0.77) Max. Dual Output Pin 9.95 (0.39) Max. Single Output Function 1 2 5 6 7 12.65 (0.5) Max. Pin +VIN -VIN -VOUT OV +VOUT +VIN -VIN -VOUT +VOUT RECOMMENDED FOOTPRINT DETAILS x5 HOLES Ø 4.60 (0.18) 1 3.60 (0.14) Function 1 2 5 7 5 2 6* 7 2.54 (0.1) 0.4 (0.016) Min. 1.15 (0.045) 1.00 (0.039) 0.10 (0.004) * 0.55 (0.022) 0.45 (0.018) 2.54 (0.1) 2.54 (0.1) 2.5±0.5 (0.098±0.02) 2.95 (0.12) 0.3 (0.012) 0.2 (0.008) * Hole not required for single output variants. All dimensions in inches ±0.01 (mm ±0.25mm). TUBE OUTLINE DIMENSIONS 6.00 (0.236) 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. Weight: 4.2g * Pin not fitted on single output variants. 14.20 (0.559) 5.00 (0.197) 5.20 (0.205) 1.50 (0.059) 0.6±0.15 (0.024±0.006) Unless otherwise stated all dimensions in inches ±0.02 (mm ±0.5mm). Tube length : 20.669±0.079 (525mm±2mm). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Tube Quantity : 25 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. © 2013 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_MEJ2C.B01 Page 7 of 7