NTE Series www.murata-ps.com Isolated 1W Single Output SM DC/DC Converters SELECTION GUIDE Nominal Input Output Output Isolation 2 Input Current at Efciency MTTF 1 Order Code Voltage Current Capacitance Voltage Rated Load V V mA mA % pF kHrs NTE0303MC 3.3 3.3 303 410 73 30 5348 NTE0305MC 3.3 5 200 390 78 35 3847 NTE0309MC 3.3 9 111 400 77 31 3134 NTE0312MC 3.3 12 83 400 77 28 3473 FEATURES NTE0315MC 3.3 15 66 400 77 29 2473 RoHS compliant NTE0503MC 5 3.3 303 270 74 40 5515 NTE0505MC 5 5 200 294 68 35 6857 Lead frame technology NTE0505MEC 5 5 200 260 77 40 3933 Single isolated output NTE0506MC 5 6 167 278 72 39 6677 NTE0509MC 5 9 111 267 75 43 5501 1kVDC Isolation NTE0512MC 5 12 83 260 77 42 3957 Efciency up to 78% NTE0515MC 5 15 66 256 78 44 2747 3 NTE1205MC 12 5 200 124 67 47 4683 Power density 1.8W/cm NTE1209MC 12 9 111 114 73 77 4008 Wide temperature performance at full NTE1212MC 12 12 83 113 74 88 3121 1 Watt load, 40C to 85C NTE1215MC 12 15 66 111 75 95 2316 UL 94V-0 Package material INPUT CHARACTERISTICS 2 Footprint over pins 1.37cm Parameter Conditions Min. Typ. Max. Units 3.3V, 5V & 12V Input Continuous operation, 3.3V input types 2.97 3.3 3.63 Voltage range Continuous operation, 5V input types 4.5 5.0 5.5 V 3.3V, 5V, 9V, 12V & 15V output Continuous operation, 12V input types 10.8 12.0 13.2 No heatsink required Reected ripple current 30 47 mA p-p Internal SMD construction ISOLATION CHARACTERISTICS Toroidal magnetics Parameter Conditions Min. Typ. Max. Units MTTF up to 6.8 million hours Isolation voltage Flash tested for 1 second 1000 VDC Resistance Viso= 1000VDC 10 G Custom solutions available Multi-layer ceramic capacitors GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency All output types 110 kHz PRODUCT OVERVIEW The NTE series of miniature surface mounted ABSOLUTE MAXIMUM RATINGS DC/DC Converters employ leadframe technol- Internal power dissipation 600mW ogy and transfer moulding techniques to bring Input voltage VIN, NTE03 types 5.5V all of the benets of IC style packaging to hybrid circuitry. The co-planarity of the pin positions is Input voltage VIN, NTE05 types 7V based upon IEC 191-6:1990. The devices are Input voltage VIN, NTE12 types 15V suitable for all applications where high volume 1. If components are required in tape and reel format sufx order code with -R, e.g. NTE0505MC-R. production is envisaged. 2. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load. 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/support KDC NTE.K05 Page 1 of 6NTE Series Isolated 1W Single Output SM DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated power TA=-40C to 85C 1.0 W Voltage set point accuracy See tolerance envelope Line regulation High VIN to low VIN 1.0 1.2 %/% 10% load to rated load, 03XXMC, 0503MC, 0505MEC 10 14 10% load to rated load, 0505MC & 1205MC 12.8 15 10% load to rated load, 0506MC 9.2 10 1 Load regulation % 10% load to rated load, 0509MC & 1209MC 8.3 9.0 10% load to rated load, 0512MC & 1212MC 6.8 7.5 10% load to rated load, 0515MC & 1215MC 6.3 7.0 BW=DC to 20MHz, 03XXMC, 0503MC, 0505MEC 40 60 BW=DC to 20MHz, 0505MC & 1205MC 62 85 BW=DC to 20MHz, 0506MC 103 170 Ripple and noise mV p-p BW=DC to 20MHz, 0509MC & 1209MC 49 75 BW=DC to 20MHz, 0512MC & 1212MC 39 65 BW=DC to 20MHz, 0515MC & 1215MC 38 76 TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specication All output types -40 85 Storage -55 125 0305MC, 0309MC, 0315MC 25 C 0303MC, 0312MC, 0503MC, 0505MEC, 0509MC, 0512MC, 0515MC 30 Case temperature rise above ambient 0505MC, 1205MC 43 1209MC, 1212MC, 1215MC 40 Cooling Free air convection 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 NTE 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 For a part holding no specic agency approvals, such as the NTE series, 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 NTE 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 specied 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. TEMPERATURE DERATING GRAPH 1.5 85C 1.0 0.5 Safe Operating Area 0 -40 100 150 0 50 Ambient Temperature (C) 1. 12V input types have typically 3% less load regulation change. www.murata-ps.com/support KDC NTE.K05 Page 2 of 6 Output Power (W)