nmr series isolated 1w single output dc/dc converters kdc_nmr.d02 page 1 of 5 www.murata-ps.com www.murata-ps.com/support for full details go to www.murata-ps.com/rohs $ selection guide order code nominal input voltage output voltage output current input current at rated load load regulation ripple & noise 3 ef?ciency isolation capacitance mttf 1 v v ma ma typ. max. typ. max. % pf khrs nmr100c 5 5 200 290 12.5 13.4 6 10 69 28 1847 nmr101c 5 12 83 260 6.90 7.70 4.6 10 77 33 981 nmr102c 5 15 67 253 6.50 7.50 4.3 10 79 40 667 nmr106c 12 5 200 121 12.5 13.4 5.3 10 69 36 1485 nmr107c 12 12 83 110 6.90 7.70 5 10 76 58 869 nmr108c 12 15 67 110 6.50 7.50 4 10 76 56 613 nmr112c 15 5 200 93 8.1 10 14 20 69 27 2110 nmr113c 15 12 83 85 3.3 4 12 15 77 58 1790 nmr114c 15 15 67 84 2.8 3.5 14 20 78 67 1560 nmr118c 24 5 200 60 6.80 10 8 15 70 61 1253 nmr119c 24 12 83 53 2.80 4.0 7 15 78 98 784 NMR120C 24 15 67 52 2.50 3.50 8 15 80 122 566 input characteristics parameter conditions min. typ. max. units voltage range continuous operation, 5v input types 4.5 5 5.5 v continuous operation, 12v input types 10.8 12 13.2 continuous operation, 15v input types 13.5 15 16.5 continuous operation, 24v input types 21.6 24 26.4 re?ected ripple current 5v & 12v input types 1.6 2 ma p-p 15v & 24v input types 5 10 output characteristics parameter conditions min. typ. max. units rated power 2 t a =-40c to 85c 1.0 w voltage set point accuracy see tolerance envelope line regulation high v in to low v in 1.0 1.2 %/% isolation characteristics parameter conditions min. typ. max. units isolation voltage flash tested for 1 second 1000 vdc resistance viso=1000vdc 10 g absolute maximum ratings lead temperature 1.5mm from case for 10 seconds 300c internal power dissipation 550mw input voltage v in , nmr100c, nmr101c, nmr102c 7v input voltage v in , nmr106c, nmr107c, nmr108c 15v input voltage v in , nmr112c, nmr113c, nmr114c 18v input voltage v in , nmr118c, nmr119c, NMR120C 28v 1. calculated using mil-hdbk-217fn2 with nominal input voltage at full load. 2. see derating graph. 3. see ripple & noise characterisation method. all speci?cations typical at t a =25c, nominal input voltage and rated output current unless otherwise speci?ed. features ? rohs compliant ? 1kvdc isolation ? ef?ciency up to 80% ? wide temperature performance at full 1 watt load, C40c to 85c ? power density up to 0.90w/cm 3 ? ul 94v-0 package material ? footprint from 1.17cm 2 ? industry standard pinout ? 5v, 12v, 15v & 24v input ? 5v, 12v & 15v output ? no heatsink required ? internal smd construction ? fully encapsulated with toroidal magnetics ? custom solutions available ? no electrolytic or tantalum capacitors description the nmr series of industrial temperature range dc/dc converters are the standard building blocks for on-board distributed power systems. they are ideally suited for providing single rail supplies on primarily digital boards with the added bene?t of galvanic isolation to reduce switching noise. sur- face mount technology and advanced packaging materials produce rugged reliable performance over an extended temperature range from -40oc to 85oc.
nmr series isolated 1w single output dc/dc converters kdc_nmr.d02 page 2 of 5 www.murata-ps.com/support general characteristics parameter conditions min. typ. max. units switching frequency 5v input types 110 khz 12v input types 160 15v input types 90 24v input types 80 temperature characteristics parameter conditions min. typ. max. units speci?cation all output types -40 85 c storage -50 130 case temperature above ambient 5v output types 33 all other output types 28 cooling free air convection tolerance envelopes 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 speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of that isola tion. murata power solutions nmr 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 speci?c agency approvals, such as the nmr series, both input and output should normally be maintained wit hin 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 a n 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; bu t 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 circui ts 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 nmr 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 insu lation. 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 b e reduced by 20% from speci?ed 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. +7% output load current (%) output voltage +4.5% -5% -2.5% 0% typical load line v nom 100 75 50 25 10 +4% output load current (%) output voltage +2% -3% -1% +1% typical load line v nom 100 75 50 25 10 +10% output load current (%) output voltage +5% -7.5% -2.5% +2.5% typical load line v nom 100 75 50 25 10 +2% nmr118 nmr113, nmr 114, nmr119, nmr120 all other types rohs compliance information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300oc for 10 seconds. the pin term ination ?nish on this product series is tin plate, hot dipped over matte tin with nickel preplate. the series is backward compatible with sn/ pb soldering systems. for further information, please visit www.murata-ps.com/rohs 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.
nmr series isolated 1w single output dc/dc converters kdc_nmr.d02 page 3 of 5 www.murata-ps.com/support application notes minimum load the minimum load to meet datasheet speci?cation is 10% of the full rated load across the speci?ed input voltage range. lower th an 10% minimum loading will result in an increase in output voltage, which may rise to typically double the speci?ed output voltage if the output load falls to less than 5%. capacitive loading and start up typical start up times for this series, with a typical input voltage rise time of 2.2s and output capacitance of 10f, are sho wn in the table below. the product series will start into a capacitance of 47f with an increased start time, however, the maximum recommended output capacitance is 10f. ripple & noise characterisation method ripple and noise measurements are performed with the following test con?guration. c1 1f x7r m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the dc/dc converter c2 10f tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the dc/dc converter with an esr of l ess than 100m at 100 khz c3 100nf multilayer ceramic capacitor, general purpose r1 450 resistor, carbon ?lm, 1% tolerance r2 50 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 speci?ed values. differential mode noise test schematic oscilloscope y input supply c1 c2 c3 r1 t1 r2 input output dc/dc converter r load + + - - typical start-up wave form start-up time start-up time s s nmr100c 2301 nmr112c 744 nmr101c 5570 nmr113c 1908 nmr102c 8289 nmr114c 6620 nmr106c 783 nmr118c 671 nmr107c 4770 nmr119c 5335 nmr108c 4850 NMR120C 6370
nmr series isolated 1w single output dc/dc converters kdc_nmr.d02 page 4 of 5 www.murata-ps.com/support application notes (continued) 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 recommend ed. 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 cur rent, 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 reso nant frequency) should be >20mhz. dc dc l c load power source inductor capacitor l, h smd through hole c, f nmr100c 10 82103c 11r103c 4.7 nmr101c 47 82473c 11r473c 1 nmr102c 47 82473c 11r473c 1 nmr106c 10 82103c 11r103c 4.7 nmr107c 47 82473c 11r473c 1 nmr108c 47 82473c 11r473c 1 nmr112c 10 82103c 11r103c 4.7 nmr113c 47 82473c 11r473c 1 nmr114c 47 82473c 11r473c 1 nmr118c 10 82103c 11r103c 4.7 nmr119c 47 82473c 11r473c 1 NMR120C 47 82473c 11r473c 1
nmr series isolated 1w single output dc/dc converters kdc_nmr.d02 page 5 of 5 www.murata-ps.com/support 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 her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci?cations are subject to chan ge without notice. ? 2012 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans?eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered 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/ package specifications mechanical dimensions pin connections - 7 pin sip pin function 1+v in 2-v in 4-v out 6+v out tube outline dimensions recommended footprint details 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. weight: 2.1g 7 pin sip package 0.77 (19.50) 0.236 (6.00) 0.394 (10.00) 0.181 (4.60) 0.141 (3.60) 0.0118 (0.30) 0.0079 (0.20) 0.5 (12.70) 0.05 (1.25) 0.0740.02 (1.880.50) 0.022 (0.55) 0.0178 (0.45) 0.1 (2.54) nmr100c xyywwi 1 2 4 6
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temperature derating graph 150 100 50 0 -40 0 0.5 1.0 1.5 safe operating area 85c ambient temperature (c) output power (w) 120c all dimensions in inches 0.01 (mm 0.25mm) all dimensions in inches 0.01 (mm 0.25mm) tube quantity: 25
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