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technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 nmf series isolated 1w regulated single output dc/dc converters 2010-04-12 kdc_nmfc.e03 page 1 of 5 www.murata-ps.com for full details go to www.murata-ps.com/rohs $ www.murata-ps.com selection guide order code 3 nominal input voltage output voltage output current power out ef? ciency isolation capacitance mttf 1 package style v v ma mw % pf khrs nmf0505dc 5 5 100 500 50 37 1307 dip nmf0509dc 5 9 100 900 62 42 825 nmf0512dc 5 12 83 1000 62 46 512 nmf0515dc 5 15 67 1000 62 52 316 nmf0505sc 5 5 100 500 50 37 1307 sip nmf0509sc 5 9 100 900 62 42 825 nmf0512sc 5 12 83 1000 62 46 512 nmf0515sc 5 15 67 1000 62 52 316 nmf1205dc 12 5 100 500 50 62 456 dip nmf1209dc 12 9 100 900 62 82 379 nmf1212dc 12 12 83 1000 62 98 290 nmf1215dc 12 15 67 1000 62 108 218 nmf1205sc 12 5 100 500 50 62 456 sip nmf1209sc 12 9 100 900 62 82 379 nmf1212sc 12 12 83 1000 62 98 290 nmf1215sc 12 15 67 1000 62 108 218 NMF2405DC 24 5 100 500 50 69 843 dip nmf2409dc 24 9 100 900 62 106 613 nmf2412dc 24 12 83 1000 62 129 422 nmf2415dc 24 15 67 1000 62 151 279 nmf2405sc 24 5 100 500 50 69 843 sip nmf2409sc 24 9 100 900 62 106 613 nmf2412sc 24 12 83 1000 62 129 422 nmf2415sc 24 15 67 1000 62 151 279 nmf4805dc 48 5 100 500 50 51 200 dip nmf4809dc 48 9 100 900 62 86 283 nmf4812dc 48 12 83 1000 62 108 162 nmf4815dc 48 15 67 1000 62 127 135 nmf4805sc 48 5 100 500 50 51 200 sip nmf4809sc 48 9 100 900 62 86 283 nmf4812sc 48 12 83 1000 62 108 162 nmf4815sc 48 15 67 1000 62 127 135 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. absolute maximum ratings short-circuit protection 2 1 second lead temperature 1.5mm from case for 10 seconds 300c internal power dissipation 450mw input voltage v in , nmf05 types 7v input voltage v in , nmf12 types 15v input voltage v in , nmf24 types 28v input voltage v in, nmf48 types 54v 1. calculated using mil-hdbk-217f with nominal input voltage at full load. 2. supply voltage must be discontinued at the end of the short circuit duration. 3. for parts with no trim function, sip package type, pre? x c with n, e.g. nmf0505snc. all speci? cations typical at t a =25c, nominal input voltage and rated output current unless otherwise speci? ed. features rohs compliant output regulation <1.5% output programmable power density 0.85w/cm 3 single isolated output sip & dip package styles ul 94v-0 package material no heatsink required footprint from 1.17cm 2 1kvdc isolation 5v, 12v, 24v & 48v input 5v, 9v, 12v & 15v output smd construction fully encapsulated with toroidal magnetics no external components required mttf up to 2.4 million hours pcb mounting description the nmf series of dc/dc converters is used where a tightly regulated supply is required. they are ideal for situations where the intput voltage is not tightly controlled. the output trim pin makes the device particularly suitable for applications requiring a programmable output voltage. the 5v output version can be used to give a regulated output, adjustable between 1.2v and 5.0v with a single resistor. an option not to have this function is available, on sip package type parts, pre? x c with n. the single rail regulated output makes the ideal choice to power sensors, such as pressure transducers, hall effect sensors and mass air? ow sensors.
technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 nmf series isolated 1w regulated single output dc/dc converters 2010-04-12 kdc_nmfc.e03 page 2 of 5 www.murata-ps.com output voltage adjustment (for 5v output variants) the trimming (adjust) input on the device allows output voltage adjustment from 1.2v to 3.3vdc by using a resistor as shown her e. the table below provides r trim values for the most commonly required output voltages. for applications not requiring the trim function, this pin must be left unconnected for normal regulated output. v out set (v) r trim ( ) 1.2 0 1.5 64 2.0 224 2.1 263 2.2 304 2.5 448 3.3 1071 input characteristics parameter conditions min. typ. max. units voltage range continuous operation, 5v input types 4.75 5 5.25 v continuous operation, 12v input types 11.4 12 12.6 continuous operation, 24v input types 22.8 24 25.2 continuous operation, 48v input types 45.6 48 50.4 output characteristics parameter conditions min. typ. max. units voltage set point accuracy 100% load 5% rated power 1 t a = 0 c to 70 c 1w line regulation high v in to low v in 0.25 %/% load regulation 10% load to rated load 0.9 1.5 % ripple & noise bw=dc to 20mhz, all output types 60 mv p-p isolation characteristics parameter conditions min. typ. max. units isolation test voltage flash tested for 1 second 1000 vdc resistance viso= 500vdc 0.1 g general characteristics parameter conditions min. typ. max. units switching frequency all input types 90 khz temperature characteristics parameter conditions min. typ. max. units speci? cation all output types 0 70 c case temperature above ambient 38 storage -55 150 cooling free air convection temperature derating graph 150 100 50 0 0 50% 100% safe operating area ambient temperature (oc) output power (w) 70c 125oc rohs compliance information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300oc for 10 seconds. the pin termination ? nish on the sip package type is tin plate, hot dipped over matte tin over 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 +v in v out -v out trim r trim nmf -v in
technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 nmf series isolated 1w regulated single output dc/dc converters 2010-04-12 kdc_nmfc.e03 page 3 of 5 www.murata-ps.com typical applications pressure sensor, or strain gauge equivalent circuit scmitt trigger 7 /.'4$ 7 065 7 /.'4$ "opef $buipef 7dd 7p (/% 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 isol ation. murata power solutions nmf 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 nmf series, both input and output should normally be maintained wi thin 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 nmf 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.
technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 nmf series isolated 1w regulated single output dc/dc converters 2010-04-12 kdc_nmfc.e03 page 4 of 5 www.murata-ps.com package specifications mechanical dimensions pin connections - 14 pin dip pin function 1-v in 9+v out 10 trim 11 -v out 14 +v in pin connections - 7 pin sip pin function 1+v in 2-v in 4-v out 5 trim ? 6+v out 0.77 (19.50) 0.385 (9.80) 0.268 (6.80)* 0.181 (4.60) 0.142 (3.60) 0.3 (7.62) 0.5 (12.70) 0.084 (2.13) 0.3 (7.62) 0.0118 (0.30) 0.0079 (0.20) 0.043 (1.09) 1 14 11 10 9 0.0200.002 (0.500.05) xyyww nmf1205dc 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) 0.079 (2.00) 0.022 (0.55) 0.0178 (0.45) 0.1 (2.54) 0.22 (0.55) 0.0178 (0.45) nmf1212sc xyyww 1 2 4 5 6 ? ? weight: 2.4g (dip) 2.1g (sip) except for nmf24xx and nmf48xx dip & sip : 2.9g dip package sip package ? trim pin not ? tted on suf? x snc parts. * 0.303 (7.70) for 24v & 48v variants ** 0.295 (7.50) for 24v & 48v variants 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. 1. see derating graph.
technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232 nmf series isolated 1w regulated single output dc/dc converters 2010-04-12 kdc_nmfc.e03 page 5 of 5 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 cha nge without notice. ? 2009 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered www.murata-ps.com/locations package specifications (continued) recommended footprint details tube outline dimensions

all dimensions in inches 0.01 (mm 0.25mm). 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

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all dimensions in inches 0.01 (mm 0.25mm). ? trim pin not ? tted on suf? x snc parts. ?

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