NXJ1 Series www.murata-ps.com Isolated 1W Single Output SM DC/DC Converters SELECTION GUIDE 1 Order Code V V mA mA % % mVp-p % % kHz pF kHrs NXJ1S0303MC 3.3 3.3 400 333 10.5 11.5 75 105 66 69.5 80 2 2430 FEATURES NXJ1S0305MC 3.3 5 400 200 8.5 10 25 45 70 72 90 2.5 3065 Patents pending NXJ1S0505MC 5 5 250 200 12 13.5 20 50 69 73.5 205 2.5 1988 Lower Prole NXJ1S1205MC 12 5 110 200 6 8.5 22 45 69 72 110 2.5 2244 UL60950 Recognised NXJ1S1212MC 12 12 115 83 4.5 5 15 40 65 71 125 2.5 3473 ANSI/AAMI ES60601-1, 2 MOOP, 1MOPP NXJ1S1215MC 12 15 120 67 4 5 15 40 69 71 135 2.5 3208 Recognised INPUT CHARACTERISTICS 4.2kVDC Isolation Hi Pot Test Parameter Conditions Min. Typ. Max. Units Continuous operation, 3V input types 2.97 3.3 3.63 Substrate Embedded Transformer Voltage range Continuous operation, 5V input types 4.5 5.0 5.5 V Automated Manufacture Continuous operation, 12V input types 10.8 12 13.2 3V input 6 Industry Standard Footprint Input reected ripple 5V input 2 mA p-p 3 current Short Circuit Protection 12V input 2 Halogen Free ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units PRODUCT OVERVIEW Production tested for 1 second 4200 Isolation voltage VDC The NXJ1 series is a new range of low cost, lower Qualifcation tested for 1 minute 4200 prole, fully automated manufacture surface Resistance Viso= 1000VDC 10 G mount DC/DC converters. The NXJ1 series OUTPUT CHARACTERISTICS automated manufacturing process with substrate Parameter Conditions Min. Typ. Max. Units Embedded Transformer, offers increased product reliability and repeatability of performance in a Rated power TA=-40C to 85C 1.0 W halogen free, iLGA inspectable package. The NXJ1 Voltage set point accuracy See tolerance envelope series, industry standard footprint is compatible 0505 variant 1.15 1.2 Line regulation High VIN to low VIN %/% with existing designs. All other variants 1.1 1.2 The NXJ1 series has a MSL rating 2, and is com- TEMPERATURE CHARACTERISTICS patible with a peak reow solder temperature of Parameter Conditions Min. Typ. Max. Units 245C as per J-STD-020 and J-STD-075. Specication All output types -40 85 Storage -50 125 C Product temperature rise above ambient All output types 16 Cooling Free air convection ABSOLUTE MAXIMUM RATINGS Input voltage VIN, NXJ1S03 types 5.5V Input voltage VIN, NXJ1S05 types 7V Input voltage VIN, NXJ1S12 types 15V 1. Components are supplied in tape and reel packaging, please refer to package specication section. Orderable part numbers are NXJ1S0505MC-R7 (180 pieces per reel), or NXJ1S0505MC-R13 (800 pieces per reel). 2. Calculated using MIL-HDBK-217 FN2 calculation model 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 All enquiries: www.murata-ps.com/support KDC NXJ1.C02 Page 1 of 10 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 2 MTTFNXJ1 Series Isolated 1W 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 NXJ1 series of DC/DC converters are all 100% production tested at 4.2kVDC for 1 second and have been qualication tested at 4.2kVDC for 1 minute. A question commonly asked is, What is the continuous voltage that can be applied across the part in normal operation The NXJ1 series has been recognized by Underwriters Laboratory, please see saftey approval section for more information. When the insulation in the NXJ1 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 NXJ1 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 NXJ1 series is recognised by Underwriters Laboratory (UL) to ANSI/AAMI ES60601-1 and provides 1 MOPP (Means Of Patient Protection) based upon a working voltage of 250 Vrms max, between input and output. UL 60950 The NXJ1 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for reinforced insulation to a working voltage of 200Vrms and for basic insulation to a working voltage of 250Vrms. FUSING The NXJ1 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, 3.3V: 1A Input Voltage, 5V: 0.5A Input Voltage, 12V: 0.25A All fuses should be UL recognized and rated to at least the maximum allowable DC input voltage. www.murata-ps.com All enquiries: www.murata-ps.com/support KDC NXJ1.C02 Page 2 of 10