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| NMK Series 3kVDC Isolated 2W Single & Dual Output DC/DC Converters SELECTION GUIDE Load Regulation (Typ) Load Regulation (Max) Efficiency (Min.) Input Current at Rated Load Efficiency (Typ.) Output Current Ripple & Noise (Typ)1 Ripple & Noise (Max)1 Nominal Input Voltage Isolation Capacitance pF 28 36 36 34 33 53 62 56 28 33 35 31 35 50 53 57 Output Voltage Order Code V NMK0505SAC NMK0509SAC NMK0512SAC NMK0515SAC NMK1205SAC NMK1209SAC NMK1212SAC NMK1215SAC NMK0505SC NMK0509SC NMK0512SC NMK0515SC NMK1205SC NMK1209SC NMK1212SC NMK1215SC 5 5 5 5 12 12 12 12 5 5 5 5 12 12 12 12 V 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 mA 400 222 167 133 400 222 167 133 200 111 83 67 200 111 83 67 mA 470 455 450 450 200 190 190 185 470 455 450 450 200 190 190 190 5.7 4.2 3.8 3.4 4.2 2.6 2.4 2.0 5 3.9 3.7 3.5 3.4 2.4 2.2 1.9 % 7.3 5.9 5.1 4.5 4.9 3.1 2.9 2.4 6.2 5.3 4.8 5.2 3.9 2.8 2.7 2.4 mVp-p 18 20 18 17 25 19 17 14 24 18 14 12 21 16 13 13 20 25 20 20 30 20 23 16 40 30 20 20 30 20 20 20 % 80 83 83 85 80 83 85 84 81 83 84 84 80 83 84 83 % 83 86 87 87 83 87 88 89 83 86 87 87 84 87 87 87 kHrs 3998 3718 3328 2855 3532 2417 2246 2020 2324 2158 1931 1655 1952 2021 1821 1574 FEATURES RoHS compliant Efficiency from 80% Power density 1.33W/cm3 Wide temperature performance at full 2 Watt load, -40C to 85C UL 94V-0 package material No heatsink required Industry standard pinout 3kVDC isolation (1 minute) 5V & 12V input 5V, 9V, 12V, & 15V output Fully encapsulated with toroidal magnetics Unbalanced loading capability No electrolytic or tantalum capacitors When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the additional external capacitance for reliable start up. INPUT CHARACTERISTICS Parameter Voltage range Reflected ripple current Conditions Continuous operation, 5V input types Continuous operation, 12V input types Min. 4.5 10.8 Typ. 5 12 7.5 Max. 5.5 13.2 15 Units V mA p-p ABSOLUTE MAXIMUM RATINGS PRODUCT OVERVIEW The NMK series of industrial temperature range DC/DC converters, available in industry standard SIP packaging offers a power upgrade path from the 1W NMV series. The NMK offers 3kVDC isolation with 5V output minimum efficiency of 80% at 2W. The un-regulated NMK series has superior output voltage set point accuracy of 6% in conjunction with excellent load regulation for this converter type. Unbalanced loading capabilities on dual output variants, all of the rated output power may be drawn from a single output. Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN, NMK05 types Input voltage VIN, NMK12 types 300C 550mW 7V 15V OUTPUT CHARACTERISTICS Parameter Rated Power Voltage Set Point Accuracy Line regulation Conditions TA=-40C to 85C See tolerance envelope High VIN to low VIN Min. Typ. Max. 2 Units W %/% 1.05 1.2 ISOLATION CHARACTERISTICS Parameter Isolation test voltage Resistance Conditions Flash tested for 1 minute Viso= 1000VDC Min. 3000 10 Typ. Max. Units VDC G GENERAL CHARACTERISTICS Parameter Switching frequency Conditions Min. Typ. 60 Max. Units kHz For full details go to www.murata-ps.com/rohs 1. See Ripple & Noise characterisation method. 2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load. All specifications typical at TA=25C, nominal input voltage and rated output current unless otherwise specified. www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_NMKC.C01 Page 1 of 5 MTTF2 NMK Series 3kVDC Isolated 2W Single & Dual Output DC/DC Converters TEMPERATURE CHARACTERISTICS Parameter Specification Storage Case Temperature above ambient Cooling Conditions All output types 5V output types All other output types Free air convection Min. -40 -50 Typ. Max. 85 125 28 25 Units C TEMPERATURE DERATING GRAPH 3 TOLERANCE ENVELOPE NMKXXXXSAC 5% NMKXXXXSC 5% Output Voltage Output Power (W) 2 1 0 -40 85C Output Voltage Typic a 2% l Loa d Lin e Typic a Safe Operating Area VNOM 0% VNOM l Loa d Lin e 1% 0% -3% 100 50 0 Ambient Temperature (C) 150 10 25 50 75 -4% 100 10 25 50 75 100 Output Load Current (%) Output Load Current (%) 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 NMK series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 3kVDC for 1 minute. 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 specific agency approvals, such as the NMK 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 NMK 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 specified 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. RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_NMKC.C01 Page 2 of 5 NMK Series 3kVDC Isolated 2W Single & Dual Output DC/DC Converters RIPPLE & NOISE CHARACTERISATION METHOD All measurement to be taken with the following components connected to the UUT as detailed below. 50 Ohm coax cable, solder connections one end, BNC plug at the other end. C1 C2 C3 R1 R2 T1 - 1F X7R multilayer ceramic capacitor rated at minimum 3 x the output voltage of the UUT - 10F tantalum capacitor rated at minimum 1.5 x the output voltage of the UUT with ESR of less than 100 milliohms at 100 kHz e.g. AVX TPS series. - 100nF multilayer ceramic capacitor, general purpose - 450 Ohm resistor, carbon film, 1% - 50 Ohm BNC termination - 3T of the coax cable through a ferrite toroid eg Ferroxcube TN32/19/13-3E25 RLOAD - Resistive load at the UUT maximum rating. Connections via twisted wires. Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 + SUPPLY Input R1 T1 R2 Y INPUT + Output - - R LOAD www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_NMKC.C01 Page 3 of 5 NMK Series 3kVDC Isolated 2W Single & Dual Output DC/DC Converters EFFICIENCY VS LOAD NMK05XXSAC 90 80 NMK12XXSAC 90 80 Efficiency (%) Efficiency (%) 70 60 50 40 30 20 10 0 0 10 20 30 40 15V 12V 9V 5V 70 60 50 40 30 20 10 0 15V 12V 9V 5V 50 Load (%) 60 70 80 90 100 0 10 20 30 40 50 Load (%) 60 70 80 90 100 NMK05XXSC 90 80 Efficiency (%) 70 60 50 40 30 20 10 0 0 10 20 30 40 50 Load (%) 60 70 80 90 100 NMK12XXSC 90 80 70 Efficiency (%) 15V 12V 9V 5V 60 50 40 30 20 10 0 0 10 20 30 40 50 Load (%) 60 15V 12V 9V 5V 70 80 90 100 www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_NMKC.C01 Page 4 of 5 NMK Series 3kVDC Isolated 2W Single & Dual Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS 0.77 (19.50) 0.30 (7.50) RECOMMENDED FOOTPRINT DETAILS 4 HOLES O 0.045 (1.15) 0.040 (1.00) 0.00394 (0.1) 0.394 (10.00) NMK0505SAC XYYWW 0.1 (2.54) 0.0016 (0.40) Min. * 12 0.181 (4.60) 0.142 (3.60) 5 6* 7 0.50 (0.020) 0.1 (2.54) * Hold not required for single output variants. Unless otherwise stated all dimensions in inches (mm) 0.5mm. 0.1 (2.54) 0.099 (2.52) 0.061 (1.54) 0.0118 (0.30) 0.0079 (0.20) TUBE OUTLINE DIMENSIONS 0.057 (1.45) 0.039 (1.00) * Pin not fitted on single output variants. 0.6 (15.24) Weight: 2.8g All dimensions in inches 0.01 (mm 0.25mm). All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position. PIN CONNECTIONS Single output variants Pin Function 1 2 5 7 +VIN -VIN -VOUT +VOUT Dual output variants Pin Function 1 2 5 6 7 +VIN -VIN -VOUT OV +VOUT Unless otherwise stated all dimensions in inches (mm) 0.5mm. Tube length : 20.47 (520mm 2mm). Tube Quantity : 25 USA: Canada: UK: Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED 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. (c) 2008 Murata Power Solutions, Inc. France: Japan: China: Germany: Munchen, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com www.murata-ps.com Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 KDC_NMKC.C01 Page 5 of 5 |
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