nmh series isolated 2w dual output dc/dc converters kdc_nmh.e03 page 1 of 6 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 ef?ciency isolation capacitance mttf 1 package style v v ma ma % pf khrs nmh0505dc 5 5 200 500 80 24 1574 dip nmh0509dc 5 9 111 494 81 28 663 nmh0512dc 5 12 83 488 82 30 338 nmh0515dc 5 15 67 476 84 33 187 nmh0505sc 5 5 200 500 80 24 1574 sip nmh0509sc 5 9 111 494 81 28 663 NMH0512SC 5 12 83 488 82 30 338 nmh0515sc 5 15 67 476 84 33 187 nmh1205dc 12 5 200 208 80 35 490 dip nmh1209dc 12 9 111 201 83 55 343 nmh1212dc 12 12 83 198 84 63 229 nmh1215dc 12 15 67 198 84 66 148 nmh1205sc 12 5 200 208 80 35 490 sip nmh1209sc 12 9 111 201 83 55 343 nmh1212sc 12 12 83 198 84 63 229 nmh1215sc 12 15 67 198 84 66 148 nmh2405dc 24 5 200 103 81 41 318 dip nmh2409dc 24 9 111 98 85 75 249 nmh2412dc 24 12 83 97 86 95 183 nmh2415dc 24 15 67 97 86 104 127 nmh2405sc 24 5 200 103 81 41 318 sip nmh2409sc 24 9 111 98 85 75 249 nmh2412sc 24 12 83 97 86 95 183 nmh2415sc 24 15 67 97 86 104 127 nmh4805dc 48 5 200 51 82 45 235 dip nmh4809dc 48 9 111 51 82 74 195 nmh4812dc 48 12 83 49 85 90 152 nmh4815dc 48 15 67 49 85 112 112 nmh4805sc 48 5 200 51 82 45 235 sip nmh4809sc 48 9 111 51 82 74 195 nmh4812sc 48 12 83 49 85 90 152 nmh4815sc 48 15 67 49 85 112 112 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, 24v input types 21.6 24 26.4 continuous operation, 48v input types 43.2 48 52.8 re?ected ripple current 5v input types 50 ma p-p 12v input types 70 24v input types 130 48v input types 200 1. calculated using mil-hdbk-217f with nominal input voltage at full load. all speci?cations typical at t a =25c, nominal input voltage and rated output current unless otherwise speci?ed. features ? rohs compliant ? ef?ciency up to 86% ? power density up to 1.44w/cm 3 ? wide temperature performance at full 2 watt load, C40c to 85c ? dual output from a single input rail ? ul 94v-0 package material ? no heatsink required ? footprint from 1.46cm 2 ? industry standard pinout ? power sharing on output ? 1kvdc isolation ? 5v, 12v, 24v & 48v input ? 5v, 9v, 12v and 15v output ? internal smd construction ? fully encapsulated with toroidal magnetics ? no external components required ? mttf up to 1.5 million hours ? no electrolytic or tantalum capacitors description the nmh series of industrial temperature range dc/dc converters are the standard buliding blocks for on-board point-of-use power systems. they are ideally suited for providing dual rail supplies on single rail boards with the added bene?t of galvanic isolation to reduce circuit noise. all of the rated power may be drawn from a single pin provided the total load does not exceed 2 watts. pin compatibility with the nma 1 watt series ensures minimal effort in upgrading distributed power systems.
nmh series isolated 2w dual output dc/dc converters kdc_nmh.e03 page 2 of 6 www.murata-ps.com/support temperature derating graph 150 100 50 0 -40 0 1 2 3 safe operating area 85c ambient temperature (c) output power (w) tolerance envelope +10% output load current (%) output voltage +5% -7.5% -2.5% +2.5% typical load line v nom 100 75 50 25 10 output characteristics parameter conditions min. typ. max. units rated power 1 t a =-40 c to 85 c 2w voltage set point accuracy nmh0505dc/sc -5 7.5 % all other types -5 5 line regulation high v in to low v in 1.0 1.2 %/% load regulation 10% load to rated load, 5v output types 5 10 % 10% load to rated load, 9v output types 310 10% load to rated load, 12v output types 10% load to rated load, 15v output types ripple and noise bw=dc to 20mhz, 5v output types 150 200 mv p-p bw=dc to 20mhz, 9v output types 100 150 bw=dc to 20mhz, 12v output types 80 150 bw=dc to 20mhz, 15v output types 70 150 absolute maximum ratings lead temperature 1.5mm from case for 10 seconds 300c internal power dissipation 300mw input voltage v in , nmh05 types 7v input voltage v in, nmh12 types 15v input voltage v in, nmh24 types 28v input voltage v in, nmh48 types 54v isolation characteristics parameter conditions min. typ. max. units isolation test voltage flash tested for 1 second 1000 vdc resistance viso= 500v 1 10 g general characteristics parameter conditions min. typ. max. units switching frequency 5v input types 95 khz 12v input types 90 24v & 48v 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 30 12v output types 25 cooling free air convection 1. see derating graph. 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.
nmh series isolated 2w dual output dc/dc converters kdc_nmh.e03 page 3 of 6 www.murata-ps.com/support 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 nmh 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 nmh 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 nmh 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. 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. typical start-up wave form start-up time start-up time s s nmh0505sc 1072 nmh2405sc 1064 nmh0509sc 2481 nmh2409sc 1544 NMH0512SC 3546 nmh2412sc 4398 nmh0515sc 5380 nmh2415sc 4230 nmh1205sc 672 nmh4805sc 966 nmh1209sc 1152 nmh4809sc 1220 nmh1212sc 1580 nmh4812sc 2822 nmh1215sc 3150 nmh4815sc 4275 rohs compliance information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300c for 10 seconds. the pin termination ?nish 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
nmh series isolated 2w dual output dc/dc converters kdc_nmh.e03 page 4 of 6 www.murata-ps.com/support application notes (continued) 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 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: ceramic chip capacitors are recommended. it is required that the esr (equivalent series resistance) should be as low as possible, x7r types are recommended. 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 resonant frequ ency) should be >20mhz. oscilloscope y input supply c1 c2 c3 r1 t1 r2 input output dc/dc converter r load + + - - dc dc l c load power source order code l (h) inductor order codes c (f) smd through hole nmh0505xc 47 82473c 11r473c 4.7 nmh0509xc 47 82473c 11r473c 2.2 nmh0512xc 150 82154c 11r154c 3.3 nmh0515xc 100 82104c 11r104c 3.3 nmh1205xc 47 82473c 11r473c 4.7 nmh1209xc 47 82473c 11r473c 2.2 nmh1212xc 150 82154c 11r154c 3.3 nmh1215xc 100 82104c 11r104c 3.3 nmh2405xc 47 82473c 11r473c 4.7 nmh2409xc 47 82473c 11r473c 2.2 nmh2412xc 150 82154c 11r154c 3.3 nmh2415xc 100 82104c 11r104c 3.3 nmh4805xc 47 82473c 11r473c 4.7 nmh4809xc 47 82473c 11r473c 2.2 nmh4812xc 150 82154c 11r154c 3.3 nmh4815xc 100 82104c 11r104c 3.3 product speci?cation for mps inductors can be found at: 1100r series (through hole) http://www.murata-ps.com/data/magnetics/kmp_1100r.pdf 8200 series (smd) http://www.murata-ps.com/data/magnetics/kmp_8200c.pdf
nmh series isolated 2w dual output dc/dc converters kdc_nmh.e03 page 5 of 6 www.murata-ps.com/support package specifications mechanical dimensions pin connections - 14 pin dip pin function 1-v in 7nc 8ov 9+v out 11 -v out 14 +v in pin connections - 7 pin sip pin function 1+v in 2-v in 4-v out 5ov 6+v out 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: 2.85g (dip) 2.76g (sip) dip package sip package 0.77 (19.50) 0.39 (9.80) 0.303 (7.70) 0.181 (4.60) 0.142 (3.60) 0.022 (0.55) 0.0178 (0.45) 0.6 (15.24) 0.084 (2.13) 0.3 (7.62) 0.0118 (0.30) 0.0078 (0.20) 0.043 (1.09) 0.1 (2.54) 1 7 14 11 9 8 xyywwi nmh0505dc 0.77 (19.50) 0.295 (7.50) 0.4 (10.00) 0.181 (4.60) 0.142 (3.60) 0.0118 (0.30) 0.0078 (0.20) 0.5 (12.70) 0.05 (1.25) 0.079 (2.00) 0.022 (0.55) 0.0178 (0.45) 0.1 (2.54) 0.022 (0.55) 0.0178 (0.45) nmh0505sc xyywwi 1 2 4 5 6
nmh series isolated 2w dual output dc/dc converters kdc_nmh.e03 page 6 of 6 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 (continued) recommended footprint details tube outline dimensions
unless otherwise stated all dimensions in inches (mm) 0.5mm. tube length (14 pin dip) : 20.47 (520mm 2mm). tube length (7 pin sip) : 20.47 (520mm 2mm). 14 pin dip tube 7 pin sip tube 14 pin dip package 7 pin sip package tube quantity : 25
0.1 (2.54) 0.045 (1.15) 0.039 (1.00) ? 0.1 (2.54) 0.045 (1.15) 0.039 (1.00) ? 0.1 (2.54) 0.1 (2.54) 5 holes 0.00394 (0.1) 5 holes 0.00394 (0.1
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