MTU2 MURATA-PS | Alldatasheet
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Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 1 of 11 www.murata.com www.murata.com For full details go to https://www.murata.com/en- global/products/power/rohs SELECTION GUIDE Order Code1 Nominal Input Voltage Output Voltage Output Current Load Regulation (Typ.) Load Regulation (Max) Ripple & Noise (Typ.)3 Ripple & Noise (Max.)3 Input Current at Full Load Efficiency (Min.) Efficiency (Typ.) Isolation Capacitance MTTF2 Recommended Alternative VV m A % mVp-p mA % % pF kHrs MTU2S0305MC 3.3 5 400 12.5 15 53 75 740 74 79 15 2650 MTU2S0505MC 5 5 400 9.5 12 47 65 480 78 82 17 2763 MTU2S0524MC 5 24 83 9 11 14 30 460 79 85 18 3060 MTU2D0505MC 5 ±5 ±200 10.5 13 30 55 480 77 82 19 2898 NXE2S0505MC-R7 MTU2D0512MC 5 ±12 ±83 8.5 11 15 35 460 79 85 19 2697 NMH0512SC MTU2S1205MC 12 5 400 7.5 10 40 60 200 72 80 20 2207 NXE2S1205MC-R7 MTU2D1212MC 12 ±12 ±83 6.5 8 15 35 190 77 83 24 2452 NXE2S1212MC-R7 MTU2S2405MC 24 5 400 8 10 30 50 100 73 80 21 2314 NXJ2S2405MC-R7 INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Voltage range Continuous operation, 3.3V input types 2.97 3.3 3.63 VContinuous operation, 5V input types 4.5 5.0 5.5 Continuous operation, 12V input types 10.8 12.0 13.2 Continuous operation, 24V input types 21.6 24 26.4 Reflected ripple current All variants 10 mA p-pOUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated power T A=-40°C to 85°C 2.0 W Voltage set point accuracy See tolerance envelope Line regulation High V IN to low VIN MTU2S0305MC 1.0 1.3 %/%All other variants 1.0 1.2 ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation voltage Flash tested for 1 minute 1000 VDC Resistance Viso= 1000VDC 10 GΩ 1. If components are required in tape and reel format suffix order code with -R, e.g. MTU20505MC-R. 2. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load. 3. See ripple & noise characterisation method. All specifications typical at T A=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
Patent protected UL 60950 recognised Footprint over pins 0.69cm2 Single & dual isolated outputs 1kVDC isolation “Hi Pot Test” Efficiency up to 85% (Typ.) MSL level 1 Power density 3.403W/cm3 3.3V & 5V inputs 5V & 24V outputs Custom solutions available Multi-layer ceramic capacitors PRODUCT OVERVIEW The MTU2 series is a new range of miniature sur- face mount, high performance 2W DC-DC convert- ers. With a footprint reduction of over 50% from the previous generations of 2W SMD DC-DC, the MTU2 series offers 2W of available output power over a wide temperature range. The MTU2 series is more efficient and offers improved regulation performance for applications where a wide output voltage variation can not be tolerated. The MTU2 series is pin compatible with the MTU2 series. The devices are suitable for all applications where high volume production is envisaged. GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency MTU2D0505MC 50 kHz All other variants 70
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 2 of 11 www.murata.com TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification All output types (see safety approval section for limitations) -40 85 °CStorage -50 125 Case temperature rise above ambient1 0305, 1205, 2405 30 45 All other variants 25 35 Cooling Free air convection ABSOLUTE MAXIMUM RATINGS Input voltage VIN, MTU2S03 types 5.5V Input voltage VIN, MTU2S05 types 7V Input voltage VIN, MTU2S12 types 15V Input voltage VIN, MTU2S24 types 28V 1 . Measured after 1 hour continuous operation at nominal VIN full load at the center of each PCB.
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 3 of 11 www.murata.com 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 MTU2 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 MTU2 has been recognised 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 MTU2 series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enamelled 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 recognised parts rated for better than functional isolation where the wire enamel insula- tion is always supplemented by a further insulation system of physical spacing or barriers. SAFETY APPROVAL The MTU2 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation to a maximum product PCB temperature of 120°C. Forced air cooling may be used to maintain this temperature requirement. File number E151252 applies. The MTU2 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. MTU2S03xxxC: 1.5A MTU2S05xxxC: 0.63A MTU2S12xxxC: 0.3A MTU2S24xxxC: 0.25A All fuses should be UL approved 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 reflow solder temperature of 245ºC as per J-STD-020D.1. Please refer to application notes for further information. The pin termination finish on this product series is Matte Tin over Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems. The series has a Moisture Sensitivity Level (MSL) 1. Samples of the product series were tested in accordance with the conditioning described for MSL level 1 in IPS/J-STD-020D.1. The product series passed electrical tests and visual inspection criteria. For further information, please visit: www.murata.com/en-global/products/power/rohs PART NUMBER STRUCTURE MTU 2 X XX XX M C -RXX Series name Power rating Output type S - Single D - Dual T - Triple Q - Quad RoHS compliant Package type S - SIP D - DIP M - Surface mount Z - ZIP Output voltage Input voltage Packaging code R7 - 7 inch reel R13 - 13 inch reel
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 4 of 11 www.murata.com 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. Typical Start-Up Wave FormStart-up time μs MTU2S0305MC 225 MTU2S0505MC 165 MTU2S0524MC 3900 MTU2S1205MC 90 MTU2S2405MC 90 MTU2D0505MC 200 MTU2D0512MC 880 MTU2D1212MC 390 CHARACTERISATION TEST METHODS 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 C2 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 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 OSCILLOSCOPE Y INPUT SUPPLY C1 C2 C3 R1 T1 R2 Input Output DC/DC Converter R LOAD + + - -
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 5 of 11 www.murata.com 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. Inductor Capacitor L, μH SMD Through Hole C, μF MTU2S0305MC 4.7 82472C 11R472C 22 MTU2S0505MC 4.7 82472C 11R472C 22 MTU2S0524MC 47 82473C 11R473C 4.7 MTU2S1205MC 4.7 82472C 11R472C 22 MTU2S2405MC 4.7 82472C 11R472C 10 MTU2D0505MC 4.7 82472C 11R472C 22 MTU2D0512MC 47 82473C 11R473C 4.7 MTU2D1212MC 47 82473C 11R473C 4.7 DC DC L L C C Load Load Power Source +VOUT OV -VOUT
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 6 of 11 www.murata.com 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. MTU2D1212MC, MTU2S2405MC & MTU2D0512MC MTU2D0505MC, MTU2S0505MC & MTU2S1205MC MTU2S0305MC MTU2S0524MC Output Load Current (%) Output Voltage Output Voltage 100 100 Output Load Current (%) 100 100 Output Voltage Output Voltage Output Load Current (%) 2.5% 8.9% 1.5% -3.9% 10.2% 4% 1.8% -4.4% 9.4% 0.4% -5.1% 13.7% 5.7% 2.2% -7.6% Output Load Current (%)
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 7 of 11 www.murata.com EFFICIENCY VS LOAD 3.3V INPUT 5V INPUT 12V INPUT 24V INPUT 0 1 02 03 04 05 06 07 08 09 0 1 0 0 Efficiency (%) Load (%) 0 1 02 03 04 05 06 07 08 09 0 1 0 0 Efficiency (%) Load (%) MTU2D0505MC MTU2D0512MC MTU2S0505MC MTU2S0524MC 0 1 02 03 04 05 06 07 08 09 0 1 0 0 Efficiency (%) Load (%) MTU2S1205MC MTU2D1212MC 0 1 02 03 04 05 06 07 08 09 0 1 0 0 Efficiency (%) Load (%)
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 8 of 11 www.murata.com TEMPERATURE DERATING MTU2S0305MC MTU2S0505MC MTU2S0524MC MTU2S1205MC MTU2S2405MC MTU2D0505MC MTU2D0512MC MTU2D1212MC 100 45 50 55 60 65 70 75 80 85 90 95 100 100 45 50 55 60 65 70 75 80 85 90 95 100 Maximum Load (%) Maximum Load (%) Temperature (°C) Temperature ( °C) 100 45 50 55 60 65 70 75 80 85 90 95 100 100 45 50 55 60 65 70 75 80 85 90 95 100 Maximum Load (%) Maximum Load (%) Temperature (°C) Temperature ( °C) 100 45 50 55 60 65 70 75 80 85 90 95 100 100 45 50 55 60 65 70 75 80 85 90 95 100 Maximum Load (%) Maximum Load (%) Temperature (°C) Temperature ( °C) 100 45 50 55 60 65 70 75 80 85 90 95 100 100 45 50 55 60 65 70 75 80 85 90 95 100 Maximum Load (%) Maximum Load (%) Temperature (°C) Temperature ( °C)
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 9 of 11 www.murata.com PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS Single Output Types Pin Function 1+ V IN 3- V IN 4 NC 5O V 6+ V OUT Dual Output Types Pin Function 1+ V IN 3- V IN 4- V OUT 5O V 6+ V OUT RECOMMENDED FOOTPRINT DETAILS TUBE OUTLINE DIMENSIONS Tube Quantity: 60 x5 PINS SEATING PLANE S 456 1.56 [0.061] (0.35 [0.014]) 0.60 [0.024] 0.25 [0.010] 8.50 MAX [0.335] 8.20 [0.323] 0.10 [0.004] S 6.50 (0.256) 2.54 (0.100) 2.54 (0.100) Unless otherwise stated all dimensions in mm (inches). Tube length: 520mm {20.472) ±2.00 (0.079).
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 10 of 11 www.murata.com TAPE & REEL SPECIFICATIONS REEL OUTLINE DIMENSIONS REEL PACKAGING DETAILS TAPE OUTLINE DIMENSIONS Unless otherwise stated all dimensions in mm (inches). Controlling dimension is mm. Components shall be orientated within the carrier tape as indicated. Reel Quantity: 400 pcs.
Isolated 2W Single & Dual Output SM DC-DC Converters KDC_MTU2_J01 Page 11 of 11 www.murata.com Murata Power Solutions (Milton Keynes) Ltd. 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. © 2023 Murata Power Solutions (Milton Keynes) Ltd. This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: https://www.murata.com/en-eu/products/power/requirements DISCLAIMER Unless otherwise stated in the datasheet, all products are designed for standard commercial and industrial applications and NOT for safety-critical and/or life-critical applications. Particularly for safety-critical and/or life-critical applications, i.e. applications that may directly endanger or cause the loss of life, inflict bodily harm and/or loss or severe damage to equipment/property, and severely harm the environment, a prior explicit written approval from Murata is strictly required. Any use of Murata standard prod- ucts for any safety-critical, life-critical or any related applications without any prior explicit written approval from Murata shall be deemed unauthorised use. These applications include but are not limited to:
- Aircraft equipment
- Aerospace equipment
- Undersea equipment
- Power plant control equipment
- Medical equipment
- Transportation equipment ( automobiles, trains, ships, etc.)
- Traffic signal equipment
- Disaster prevention / crime prevention equipment
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