NXJ2 Series www.murata-ps.com Isolated 2W Single Output SM DC-DC Converters SELECTION GUIDE 2 MTTF 1 Order Code V V mA mA % % mVp-p % % kHz pF kHrs NXJ2S0505MC 5 5 550 400 7.5 10 50 110 68.5 72.5 140 2 2874 40967 FEATURES NXJ2S1212MC 12 12 215 167 7 9 30 70 72 75 120 2 1766 65080 Patents pending NXJ2S1215MC 12 15 215 133 8 10 25 60 75 77.5 110 2.2 1334 49049 Lower Prole NXJ2S2405MC 24 5 110 400 8 10 70 170 73 76.5 100 2.4 2026 33111 UL60950 Recognition pending NXJ2S2415MC 24 15 105 133 6.5 8 20 50 74.5 78.5 95 2.4 1232 44260 ANSI/AAMI ES60601-1, 2 MOOP, 1MOPP INPUT CHARACTERISTICS recognition pending Parameter Conditions Min. Typ. Max. Units 5.2kVDC Isolation Hi Pot Test Continuous operation, 5V input types 4.5 5.0 5.5 Voltage range Continuous operation, 12V input types 10.8 12 13.2 V Substrate Embedded Transformer Continuous operation, 24V input types 21.6 24 26.4 Automated Manufacture Input reected ripple 5V input 15 mA p-p 3 current 12V & 24V input 5 Short Circuit Protection Halogen Free ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Production tested for 1 second 5200 Isolation voltage VDC Qualication tested for 1 minute 5200 PRODUCT OVERVIEW Resistance Viso= 1000VDC 10 G The NXJ2 series is a new range of lower prole, OUTPUT CHARACTERISTICS fully automated manufacture surface mount Parameter Conditions Min. Typ. Max. Units DC-DC converters. The NXJ2 series automated Rated power TA=-40C to 85C 2.0 W manufacturing process with substrate Embedded Voltage set point accuracy See tolerance envelope Transformer, offers increased product reliability and repeatability of performance in a halogen 24V input types 1 1.1 Line regulation High VIN to low VIN %/% free, iLGA inspectable package. The NXJ2 series, All other input types 1.1 1.2 industry standard footprint is compatible with TEMPERATURE CHARACTERISTICS existing designs. Parameter Conditions Min. Typ. Max. Units The NXJ2 series has a MSL rating 2, and is com- Specication All output types -40 85 patible with a peak reow solder temperature of Storage -50 125 260 C as per J-STD-020. C 5V input types 35 Product temperature rise above ambient 12V input types 30 24V input types 25 Cooling Free air convection ABSOLUTE MAXIMUM RATINGS Input voltage VIN, NXJ2S05 types 7V Input voltage VIN, NXJ2S12 types 15V Input voltage VIN, NXJ2S24 types 28V 1. Components are supplied in tape and reel packaging, please refer to package specication 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=25C with nominal input voltage at full load. 3. Please refer to short circuit application notes. All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied. For full details go to www.murata-ps.com/rohs www.murata-ps.com KDC NXJ2.A02 Page 1 of 13 Nominal Input Voltage Output Voltage Rated Input Current Output Current Load Regulation (Typ) Load Regulation (Max) Output Ripple & Noise (Typ) Output Ripple & Noise (Max) Efciency (Min) Efciency (Typ) Switching Frequency (Typ) Isolation Capacitance MIL 217 TelecordiaNXJ2 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 specied 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 qualication 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 specied 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 dened 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