NXJ2 Series www.murata-ps.com Isolated 2W Single Output SM DC-DC Converters Switching Frequency (Typ) Isolation Capacitance mA mA % % FEATURES 5 550 400 7.5 10 50 110 Patents pending NXJ2S1212MC 12 12 215 167 7 9 30 70 72 Lower Profile NXJ2S1215MC 12 15 215 133 8 10 25 60 NXJ2S2405MC 24 5 110 400 8 10 70 170 NXJ2S2415MC 24 15 105 133 6.5 8 20 50 UL60950 Recognition pending ANSI/AAMI ES60601-1, 2 MOOP, 1MOPP recognition pending 5.2kVDC Isolation ‘Hi Pot Test’ Substrate Embedded Transformer Automated Manufacture Short Circuit Protection3 Halogen Free Parameter Voltage range Input reflected ripple current The NXJ2 series has a MSL rating 2, and is compatible with a peak reflow solder temperature of 260ÚC as per J-STD-020. pF kHrs 140 2 2874 40967 75 120 2 1766 65080 75 77.5 110 2.2 1334 49049 73 76.5 100 2.4 2026 33111 74.5 78.5 95 2.4 1232 44260 68.5 72.5 Conditions Min. Typ. Max. Units Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 24V input types 5V input 12V & 24V input 4.5 10.8 21.6 5.0 12 24 15 5 5.5 13.2 26.4 V Typ. Max. mA p-p ISOLATION CHARACTERISTICS Isolation voltage The NXJ2 series is a new range of lower profile, fully automated manufacture surface mount DC-DC converters. The NXJ2 series automated manufacturing process with substrate Embedded Transformer, offers increased product reliability and repeatability of performance in a halogen free, iLGA inspectable package. The NXJ2 series, industry standard footprint is compatible with existing designs. mVp-p INPUT CHARACTERISTICS Parameter PRODUCT OVERVIEW Output Current V 5 Telecordia Efficiency (Typ) kHz V NXJ2S0505MC Order Code1 MTTF2 MIL 217 Efficiency (Min) Load Regulation (Typ) Load Regulation (Max) Output Ripple & Noise (Typ) Output Ripple & Noise (Max) % Output Voltage % Nominal Input Voltage Rated Input Current SELECTION GUIDE Resistance Conditions Min. Production tested for 1 second Qualification tested for 1 minute Viso= 1000VDC 5200 5200 10 Units VDC GΩ OUTPUT CHARACTERISTICS Parameter Conditions Rated power Voltage set point accuracy TA=-40°C to 85°C See tolerance envelope Min. Line regulation High VIN to low VIN 24V input types All other input types Typ. Max. Units 2.0 W 1 1.1 1.1 1.2 %/% Typ. Max. Units TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types -40 -50 Product temperature rise above ambient Cooling 5V input types 12V input types 24V input types Free air convection 85 125 °C 35 30 25 ABSOLUTE MAXIMUM RATINGS Input voltage VIN, NXJ2S05 types Input voltage VIN, NXJ2S12 types Input voltage VIN, NXJ2S24 types For full details go to www.murata-ps.com/rohs 7V 15V 28V 1. Components are supplied in tape and reel packaging, please refer to package specification section. Orderable part numbers are NXJ2SXXXXMC-R7 (135 pieces per reel), or NXJ2SXXXXMC-R13 (600 pieces per reel). 2. Calculated using MIL-HDBK-217 FN2 and Telecordia SR-332 calculation model at TA=25°C with nominal input voltage at full load. 3. Please refer to short circuit application notes. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. www.murata-ps.com KDC_NXJ2.A02 Page 1 of 13 NXJ2 Series Isolated 2W Single Output SM 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 NXJ2 series of DC-DC converters are all 100% production tested at 5.2kVDC for 1 second and have been qualification tested at 5.2kVDC for 1 minute. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The NXJ2 series is pending recognition by Underwriters Laboratory, please see safety approval section for more information. When the insulation in the NXJ2 is not used as a safety barrier, i.e. provides functional isolation only, continuous or switched voltages across the barrier in excess of 1kV are sustainable. Long term reliability testing at these voltages continues. Please contact Murata for further information. 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 NXJ2 series has a PCB embedded isolated transformer, using FR4 as an insolation barrier between primary and secondary windings. While parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the FR4 insulation properties. Any material, including FR4 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 should be reduced by 20% from specified test voltage. This consideration equally applies to agency recognized parts rated for better than functional isolation where the insulation is always supplemented by a further insulation system of physical spacing or barriers. SAFETY APPROVAL ANSI/AAMI ES60601-1 The NXJ2 series is pending recognition by Underwriters Laboratory (UL) to ANSI/AAMI ES60601-1 and provides 1 MOPP (Means Of Patient Protection) and 2 MOOP (Means Of Operator Protection) based upon a working voltage of 250 Vrms max, between input and output. UL 60950 The NXJ2 series is pending recognition by Underwriters Laboratory (UL) to UL 60950 for reinforced insulation to a working voltage of 250Vrms. FUSING The NXJ2 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. Input Voltage, 5V: 1A Input Voltage, 12V: 400mA Input Voltage, 24V: 250mA All fuses should be UL recognized and rated to at least the maximum allowable DC input voltage. www.murata-ps.com KDC_NXJ2.A02 Page 2 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters 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 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 RoHS COMPLIANCE AND MSL INFORMATION This series is compatible with Pb-Free soldering systems and is also backward compatible with Sn/Pb soldering systems. The NXJ2 series can be soldered in accordance with J-STD-020 and have a classification temperature of 260°C and moisture sensitivity level 2. The termination finish on this product is Gold with plating thickness 0.12 microns. www.murata-ps.com KDC_NXJ2.A02 Page 3 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters TOLERANCE ENVELOPES 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. NXJ2S0505MC NXJ2S1212MC 8% 6% 5% 3% Output Voltage Output Voltage 2% -1% -4% 10 25 50 75 -5% 100 10 25 50 75 100 Output Load Current (%) Output Load Current (%) NXJ2S1215MC NXJ2S2405MC 9% 6% -1% Output Voltage Output Voltage 5% 3% 1% -3% 10 25 75 50 Output Load Current (%) -6% 100 10 25 75 50 Output Load Current (%) 100 NXJ2S2415MC 7% Output Voltage 4% 1% -3% 10 25 75 50 Output Load Current (%) 100 www.murata-ps.com KDC_NXJ2.A02 Page 4 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters EFFICIENCY VS LOAD 5V Input 80 Efficiency (%) 70 60 50 40 NXJ2S0505MC 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) 12V Input 80 70 Efficiency (%) 60 50 NXJ2S1212MC NXJ2S1215MC 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) 24V Input 80 70 Efficiency (%) 60 50 NXJ2S2405MC NXJ2S2415MC 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) www.murata-ps.com KDC_NXJ2.A02 Page 5 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters TEMPERATURE DERATING NXJ2S1212MC 100 100 90 90 80 80 70 70 60 50 5.5Vin 40 5Vin 30 Maximum Load % Maximum Load % NXJ2S0505MC 60 50 13.2Vin 40 12Vin 30 20 20 10 10 0 0 55 60 65 70 75 80 85 90 95 55 100 60 65 NXJ2S1215MC 75 80 85 90 95 100 NXJ2S2405MC 100 100 90 90 80 80 70 70 60 50 13.2Vin 40 12Vin Maximum Load % Maximum Load % 70 Temperature °C Temperature °C 60 50 26.4Vin 30 30 20 20 10 24Vin 40 10 0 55 60 65 70 75 80 85 90 95 0 100 55 Temperature °C 60 65 70 75 80 85 90 95 100 Temperature °C NXJ2S2415MC 100 90 80 Maximum Load % 70 60 50 26.4Vin 24Vin 40 30 20 10 0 55 60 65 70 75 80 85 90 95 100 Temperature °C www.murata-ps.com KDC_NXJ2.A02 Page 6 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters APPLICATION NOTES Short Circuit Performance The NXJ2 series short circuit performance is currently being evaluated. Please contact Murata for further information. Advisory Notes Minimum Load The NXJ2 series is not hermetically sealed, customers should ensure that parts are fully dried before input power application. 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 & Start Up Typical start up times for this series, with a typical input voltage rise time of 2.2μs with resistive only load, and with added output capacitance of 10μF, are shown in the table below. Typical Start-Up Wave Form Start-Up Time Part Number NXJ2S0505MC NXJ2S1212MC NXJ2S1215MC NXJ2S2405MC NXJ2S2415MC μS 260 840 1200 160 1110 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. NXJ2S0505MC NXJ2S1212MC NXJ2S1215MC NXJ2S2405MC NXJ2S2415MC L, μH 4.7 4.7 4.7 4.7 4.7 Inductor SMD Through Hole 82472C 11R472C 82472C 11R472C 82472C 11R472C 82472C 11R472C 82472C 11R472C Capacitor C, μF 10 4.7 4.7 10 4.7 L Power Source DC C Load DC www.murata-ps.com KDC_NXJ2.A02 Page 7 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters EMC FILTERING AND SPECTRA FILTERING The following table shows the additional input capacitor and input inductor typically required to meet EN 55022 Curve A & B CISPR22 Average Limit as shown in the following plots. The following plots show positive and negative average limit and CISPR22 Average Limit A (pink line) and CISPR22 Average Limit B (green line) adherence limits. The below values are for guidance only and should be evaluated in the application circuit. L Power Source NXJ2S0505MC NXJ2S1212MC NXJ2S1215MC NXJ2S2405MC NXJ2S2415MC Inductor SMD Through Hole 84103C 11R103C 82103C 11R103C 82103C 11R103C 82103C 11R103C 82103C 11R103C L, μH 10 10 10 10 10 DC Load C DC C, μF 15 15 15 15 15 Capacitor SMD GRM55ER71E156KA01 GRM55ER71E156KA01 GRM55ER71E156KA01 KRM55LR7YA156KH01 KRM55LR7YA156KH01 NXJ2S0505MC (Average) 80 80 70 70 60 60 50 50 dBuV dBuV NXJ2S0505MC (Quasi Peak) 40 40 30 30 20 20 10 10 0 1.00E+05 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 1.00E+06 Frequency (Hz) 80 80 70 70 60 60 50 50 40 40 30 30 20 20 10 10 1.00E+06 1.00E+08 NXJ2S1212MC (Average) dBuV dBuV NXJ2S1212MC (Quasi Peak) 0 1.00E+05 1.00E+07 Frequency (Hz) 1.00E+07 Frequency (Hz) 1.00E+08 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) www.murata-ps.com KDC_NXJ2.A02 Page 8 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters EMC FILTERING AND SPECTRA NXJ2S1215MC (Average) 80 80 70 70 60 60 50 50 dBuV dBuV NXJ2S1215MC (Quasi Peak) 40 40 30 30 20 20 10 10 0 1.00E+05 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 1.00E+06 Frequency (Hz) 80 80 70 70 60 60 50 50 40 40 30 30 20 20 10 10 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 1.00E+06 1.00E+08 NXJ2S2415MC (Average) 80 80 70 70 60 60 50 50 dBuV dBuV NXJ2S2415MC (Quasi Peak) 40 40 30 30 20 20 10 10 1.00E+06 1.00E+07 Frequency (Hz) Frequency (Hz) 0 1.00E+05 1.00E+08 NXJ2S2405MC (Average) dBuV dBuV NXJ2S2405MC (Quasi Peak) 0 1.00E+05 1.00E+07 Frequency (Hz) 1.00E+07 Frequency (Hz) 1.00E+08 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) www.murata-ps.com KDC_NXJ2.A02 Page 9 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters PACKAGE SPECIFICATIONS Mechanical Dimensions - 5V & 12V Input Types Pin Connections 15.49 [0.610] SMA PICKUP POINT Pin Function 1 2 5 6 7 8 11 12 +VIN -VIN -VOUT +VOUT NC NC -VIN NC NC - No connection. 4.41±0.45 [0.174±0.018] S SEATING PLANE SMA PICKUP POINT (TOP OF PCB) 3.16±0.24 [0.124±0.009] 0.1 (0.004) S 1.65 [0.065] x8 PINS 1 2 5 6 11.43 [0.450] 12 11 8 7 1.45 [0.057] x5 PLACES x 8 PLACES 0.61 [0.024] 2.54 [0.100] 2.54 [0.100] 12.70 [0.500] All dimensions in mm(inches), Controlling dimension is mm. Tolerances (unless otherwise stated) ±0.2 (0.008). Components shown for reference only Weight: 1.38g Recommended Footprint Details 12.70 [0.500] x8 PLACES 2.30 [0.091] RECOMMENDED ISOLATION BARRIER x8 PLACES 1.00 [0.039] 2.54 [0.100] 2.54 [0.100] www.murata-ps.com KDC_NXJ2.A02 Page 10 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters PACKAGE SPECIFICATIONS Mechanical Dimensions - 24V Input Type Pin Connections 16.00 [0.630] SMA PICKUP POINT Pin Function 1 2 5 6 7 8 11 12 +VIN -VIN -VOUT +VOUT NC NC -VIN NC NC - No connection. 4.41±0.45 [0.174±0.018] S SEATING PLANE SMA PICKUP POINT (TOP OF PCB) 3.16±0.19 [0.124±0.007] 0.1 (0.004) S 1.65 [0.065] x8 PINS 1 2 5 6 14.48 [0.570] 12 11 8 7 1.45 [0.057] x5 PLACES x 8 PLACES 0.61 [0.024] 2.54 [0.100] 2.54 [0.100] 12.70 [0.500] All dimensions in mm(inches), Controlling dimension is mm. Tolerances (unless otherwise stated) ±0.2 (0.008). Components shown for reference only Weight: 1.78g Recommended Footprint Details 12.70 [0.500] x8 PLACES 2.30 [0.091] RECOMMENDED ISOLATION BARRIER x8 PLACES 1.00 [0.039] 2.54 [0.100] 2.54 [0.100] www.murata-ps.com KDC_NXJ2.A02 Page 11 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters TAPE & REEL SPECIFICATIONS TAPE OUTLINE DIMENSIONS - 5V & 12V Input Types Tape & Reel specifications shall conform with current EIA-481 standard Unless otherwise stated all dimensions in mm(inches) Controlling dimension is mm Components shall be orientated within the carrier tape as indicated TAPE OUTLINE DIMENSIONS - 24V Input Type Tape & Reel specifications shall conform with current EIA-481 standard Unless otherwise stated all dimensions in mm(inches) Controlling dimension is mm Components shall be orientated within the carrier tape as indicated www.murata-ps.com KDC_NXJ2.A02 Page 12 of 13 NXJ2 Series Isolated 2W Single Output SM DC-DC Converters TAPE & REEL SPECIFICATIONS CONTINUED REEL OUTLINE DIMENSIONS REEL PACKAGING DETAILS Tape & Reel specifications shall conform with current EIA-481 standard Unless otherwise stated all dimensions in mm(inches) Controlling dimension is mm # Measured at hub ## Six equi-spaced slots on 180mm/7” reel Carrier tape pockets shown are illustrative only - Refer to carrier tape diagram for actual pocket details. Reel Quantity: 7” - 135 or 13” - 600 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. © 2018 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NXJ2.A02 Page 13 of 13