MEA1 Series www.murata-ps.com 1kVDC Isolated 1W Dual Output DC/DC Converters Power density to 0.85W/cm3 Wide temperature performance at full 1 Watt load, –40°C to 85°C UL 94V-0 package material No heatsink required Industry standard pinout Power sharing on output 5V,12V, 15V, 24V, & 48V input 5V, 9V, 12V, & 15V output Fully encapsulated with toroidal magnetics No external components required No electrolytic or tantalum capacitors PRODUCT OVERVIEW The MEA series is the new high performance version of our 1W NMA series. The MEA 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 dual rail supplies with the added benefit of galvanic isolation to reduce switching noise. All of the rated power may be drawn from a single output providing the total load does not exceed 1 watt. 233 228 228 225 98 95 93 94 78 76 76 75 49 47 47 47 26 25 25 25 232 227 226 224 97 95 93 94 78 76 76 75 49 48 47 47 mVp-p 25 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 25 20 20 20 25 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 % pF kHrs 85 86.5 87 87 85 86.5 89 88 84 87 87.5 89.5 84.5 87.5 87 88.5 80 82 83 83.5 85 86.7 87 87.5 84.5 86.5 89 88 84 87 87.5 89.5 84.5 87 87 88 53 51 45 46 44 61 88 78 40 65 75 104 47 80 85 106 44 72 91 109 52 49 47 46 43 64 89 76 42 50 77 106 47 77 83 100 3663 3291 2860 2374 3352 3083 2701 2264 Package Style % 82 84 84 84 81 83 85 84 80 82 83 85 81 84 84 85 77 79 78 80 82 84 84 84 81 83 85 84 80 82 83 85 81 84 84 85 MTTF2 12 8 6 6 9 7 6 5 8 7 5 5 9 7 4 3 14 8 7 6 12 9 7 6 9 7 6 6 9 6 6 6 10 8 6 6 Efficiency (Min.) 5.4 4.5 5 4.5 4 3 3.5 3 3.5 2.5 2.5 2.5 3.5 2.5 2.5 2.5 4 3 3 2.5 6.2 5 5.3 5.3 4.5 3.5 3.5 3 4 3 2.7 2.7 4 3.8 2.5 2.3 % 4.8 3.7 4 3.8 3.5 2.5 2.6 2.2 3 2.1 2 2 2.8 1.8 1.6 1.5 2.6 1.6 1.6 1.3 5 3.9 4.2 4.1 3.6 2.6 2.7 2.3 3.1 2.2 2 2 2.8 2 1.6 1.5 Ripple & Noise (Max)1 Load Regulation (Typ) Input Current at Rated Load Output Current mA ±100 ±56 ±42 ±33 ±100 ±56 ±42 ±33 ±100 ±56 ±42 ±33 ±100 ±56 ±42 ±33 ±100 ±56 ±42 ±33 ±100 ±56 ±42 ±33 ±100 ±56 ±42 ±33 ±100 ±56 ±42 ±33 ±100 ±56 ±42 ±33 Isolation Capacitance Typical efficiency to 89.5% mA ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 Efficiency (Typ.) RoHS compliant V 5 5 5 5 12 12 12 12 15 15 15 15 24 24 24 24 48 48 48 48 5 5 5 5 12 12 12 12 15 15 15 15 24 24 24 24 Ripple & Noise (Typ)1 UL 60950 recognized V Load Regulation (Max) FEATURES MEA1D0505SC MEA1D0509SC MEA1D0512SC MEA1D0515SC MEA1D1205SC MEA1D1209SC MEA1D1212SC MEA1D1215SC MEA1D1505SC MEA1D1509SC MEA1D1512SC MEA1D1515SC MEA1D2405SC MEA1D2409SC MEA1D2412SC MEA1D2415SC MEA1D4805SC MEA1D4809SC MEA1D4812SC MEA1D4815SC MEA1D0505DC MEA1D0509DC MEA1D0512DC MEA1D0515DC MEA1D1205DC MEA1D1209DC MEA1D1212DC MEA1D1215DC MEA1D1505DC MEA1D1509DC MEA1D1512DC MEA1D1515DC MEA1D2405DC MEA1D2409DC MEA1D2412DC MEA1D2415DC Output Voltage Order Code Nominal Input Voltage SELECTION GUIDE SIP DIP 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. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 2010-07-08 KDC_MEA1.C03 Page 1 of 8 MEA1 Series 1kVDC Isolated 1W Dual Output DC/DC Converters INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 15V input types Continuous operation, 24V input types Continuous operation, 48V input types 5V input types 12V input types 15V input types 24V input types 48V input types 4.5 10.8 13.5 21.6 43.2 5 12 15 24 48 4 4 3 3 22 5.5 13.2 16.5 26.4 52.8 12 12 10 10 35 Parameter Conditions Min. Typ. Max. Units Rated Power Voltage Set Point Accuracy Line regulation TA=-40°C to 85°C See tolerance envelope High VIN to low VIN 1 W 1.05 1.1 %/% Typ. Max. Units Voltage range Reflected ripple current Units V mA p-p OUTPUT CHARACTERISTICS ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 second Viso= 1000VDC 1000 10 Conditions Min. VDC GΩ GENERAL CHARACTERISTICS Parameter MEA1D05xxxC, MEA1D1212xC, MEA1D1515xC Switching frequency Typ. Max. Units 65 MEA1D1205xC, MEA1D1209xC, MEA1D1215xC, MEA1D1505xC, MEA1D1509xC, MEA1D1512xC, MEA1D24xxxC MEA1D48xxxC kHz 85 60 TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage Case Temperature above ambient Cooling All output types -40 -50 Typ. Max. Units 85 125 20 °C Free air convection ABSOLUTE MAXIMUM RATINGS Lead temperature 1mm from case for 10 seconds Input voltage VIN, 5Vin types Input voltage VIN, 12Vin types Input voltage VIN, 15Vin types Input voltage VIN, 24Vin types Input voltage VIN, 48Vin types www.murata-ps.com 260°C 7V 15V 18V 28V 54V Technical enquiries email: [email protected], tel: +44 (0)1908 615232 2010-07-08 KDC_MEA1.C03 Page 2 of 8 MEA1 Series 1kVDC Isolated 1W Dual Output DC/DC Converters TEMPERATURE DERATING GRAPH TOLERANCE ENVELOPE 5% 85°C 1.0 0.5 Output Voltage Output Power (W) 1.5 l Loa VNOM d Lin e 0% Safe Operating Area 10 0 -40 2% Typic a 100 50 0 Ambient Temperature (°C) 150 25 50 75 -4% 100 Output Load Current (%) 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 MEA1 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 MEA1 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 MEA1 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. SAFETY APPROVAL The MEA1 series has been recognized by Underwriters Laboratory (UL) to UL 60950 for functional insulation 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 E179522 applies. The MEA1 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. MEA1D05xxxC: 1A MEA1D12xxxC: 0.375A MEA1D15xxxC: 0.375A MEA1D24xxxC: 0.2A MEA1D48xxSC: 0.1A All fuses should be UL approved and rated to at least the maximum allowable DC input voltage. www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 2010-07-08 KDC_MEA1.C03 Page 3 of 8 MEA1 Series 1kVDC Isolated 1W Dual 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 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. MEA1D0505xC MEA1D0509xC MEA1D0512xC MEA1D0515xC MEA1D1205xC MEA1D1209xC MEA1D1212xC MEA1D1215xC MEA1D1505xC MEA1D1509xC Start-up time μs 939 2872 5325 8895 1150 3716 6912 10810 883 3160 MEA1D1512xC MEA1D1515xC MEA1D2405xC MEA1D2409xC MEA1D2412xC MEA1D2415xC MEA1D4805xC MEA1D4809xC MEA1D4812xC MEA1D4815xC Start-up time μs 5630 8585 472 1473 2643 4348 586 1705 2995 4722 Typical Start-Up Wave Form 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 Technical enquiries email: [email protected], tel: +44 (0)1908 615232 2010-07-08 KDC_MEA1.C03 Page 4 of 8 MEA1 Series 1kVDC Isolated 1W Dual Output DC/DC Converters APPLICATION NOTES (continued) Output Ripple Reduction By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max. Component selection Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter. Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz. L Power Source MEA1D0505xC MEA1D0509xC MEA1D0512xC MEA1D0515xC MEA1D1205xC MEA1D1209xC MEA1D1212xC MEA1D1215xC MEA1D1505xC MEA1D1509xC MEA1D1512xC MEA1D1515xC MEA1D2405xC MEA1D2409xC MEA1D2412xC MEA1D2415xC MEA1D4805xC MEA1D4809xC MEA1D4812xC MEA1D4815xC L, μH 10 22 47 47 10 22 47 47 10 22 47 47 10 22 47 47 10 22 47 47 Inductor SMD 82103C 82223C 82473C 82473C 82103C 82223C 82473C 82473C 82103C 82223C 82473C 82473C 82103C 82223C 82473C 82473C 82103C 82223C 82473C 82473C DC C Load DC Through Hole 11R103C 11R223C 11R473C 11R473C 11R103C 11R223C 11R473C 11R473C 11R103C 11R223C 11R473C 11R473C 11R103C 11R223C 11R473C 11R473C 11R103C 11R223C 11R473C 11R473C Capacitor C, μF 4.7 2.2 1 1 4.7 2.2 1 1 4.7 2.2 1 1 4.7 2.2 1 1 4.7 2.2 1 1 RoHS COMPLIANT 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 www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 2010-07-08 KDC_MEA1.C03 Page 5 of 8 MEA1 Series 1kVDC Isolated 1W Dual Output DC/DC Converters EFFICIENCY VS LOAD MEA 5V Input Voltage MEA 12V Input Voltage 90 90 80 80 15V 12V 9V 5V 60 50 70 Efficiency (%) Efficiency (%) 70 40 30 40 30 20 10 10 0 10 20 30 40 50 60 Load (%) 70 80 90 0 100 MEA 15V Input Voltage 10 20 30 40 50 60 Load (%) 70 80 90 100 70 80 90 100 90 80 80 70 15V 12V 9V 5V 50 70 Efficiency (%) 60 40 30 15V 12V 9V 5V 60 50 40 30 20 20 10 10 0 0 MEA 24V Input Voltage 90 Efficiency (%) 50 20 0 15V 12V 9V 5V 60 0 10 20 30 40 50 60 70 80 90 100 Load (%) 0 0 10 20 30 40 50 60 Load (%) MEA 48V Input Voltage 90 80 Efficiency (%) 70 15V 12V 9V 5V 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 2010-07-08 KDC_MEA1.C03 Page 6 of 8 MEA1 Series 1kVDC Isolated 1W Dual Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 14 PIN DIP SIP package DIP package 0.776 (19.70) Max. 0.774 (19.65) MEA1D0505DC 0.394 (10.00) Max. XYYWW 0.242 (6.15) Max. † 0.276 (7.0) Max. 0.022 (0.55) 0.018 (0.45) 0.043 (1.09) 1 0.0016 (0.40) Min. 14 2 0.181 (4.60) 0.141 (3.60) 4 5 6 0.1 (2.54) 0.022 (0.55) 0.0178 (0.45) 0.0607 (1.5438) 0.099 (2.5162) 7 0.3 (7.62) 0.092 (2.33) 0.076 (1.93) XYYWW 1 0.1 (2.54) 11 0.6 (15.24) 9 8 0.0118 (0.30) 0.0079 (0.20) 0.057 (1.45) 0.039 (1.00) 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. † 48V input variants 0.301 (7.65) www.murata-ps.com Function 1 -VIN 7 NC 8 OV 9 +VOUT 11 -VOUT 14 +VIN MEA1D0505SC 0.4 (10.15) 0.181 (4.60) 0.142 (3.60) Pin 0.0118 (0.30) 0.0079 (0.20) PIN CONNECTIONS - 7 PIN SIP Pin Function 1 +VIN 2 -VIN 4 -VOUT 5 OV 6 +VOUT 0.5 (12.70) Weight: 2.5g (DIP) 2.3g (SIP) 48V input: 2.8g Technical enquiries email: [email protected], tel: +44 (0)1908 615232 2010-07-08 KDC_MEA1.C03 Page 7 of 8 MEA1 Series 1kVDC Isolated 1W Dual Output DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 7 Pin SIP Package 14 Pin DIP Package 0.045 (1.15) Ø 0.039 (1.00) 5 HOLES 0.045 (1.15) Ø 0.039 (1.00) 5 HOLES 0.00394 (0.1) 0.00394 (0.1 0.1 (2.54) 0.1 (2.54) 0.1 (2.54) 0.1 (2.54) Unless otherwise stated all dimensions in inches (mm) ±0.5mm. TUBE OUTLINE DIMENSIONS 7 Pin SIP Tube 14 Pin DIP Tube Unless otherwise stated all dimensions in inches (mm) ±0.5mm. Tube length (14 Pin DIP) : 20.47 (520mm ±2mm). Tube length (7 Pin SIP) : 20.47 (520mm ±2mm). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED www.murata-ps.com/locations Unless otherwise stated all dimensions in inches (mm) ±0.5mm. Tube length : 20.47 (520mm ±2mm). Tube Quantity : 25 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. © 2010 Murata Power Solutions, Inc. Technical enquiries email: [email protected], tel: +44 (0)1908 615232 2010-07-08 KDC_MEA1.C03 Page 8 of 8