nmxu series isolated 5w single & dual output dc/dc converters kdc_nmxu.d01 page 1 of 3 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 ef?ciency (typ.) isolation capacitance (typ.) mttf 1 recommended alternative v v a % pf khrs nmxd0505uc 5 5 0.5 75 31.5 779 nmxd0512uc 5 12 0.208 75 33 158 NMXD0515UC 5 15 0.167 75 34.2 86 nmxd1205uc 12 5 0.5 75 34.7 233 ncs6d1205c nmxd1212uc 12 12 0.208 75 52.9 107 ncs6d1212c nmxd1215uc 12 15 0.167 75 59.9 68 ncs6d1215c nmxs0505uc 5 5 1.0 75 30.6 792 nmxs0512uc 5 12 0.417 75 31.2 158 nmxs0515uc 5 15 0.333 75 32.6 86 nmxs1205uc 12 5 1.0 75 32.5 233 ncs6s1205c nmxs1212uc 12 12 0.417 75 51.9 107 ncs6s1212c nmxs1215uc 12 15 0.333 75 54.1 68 ncs6s1215c 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 conditions min. typ. max. units voltage range continuous operation, 5v input types 4.5 5.0 5.5 v continuous operation, 12v input types 10.8 12.0 13.2 re?ected ripple voltage bw=dc to 20mhz, all output types 200 mv output characteristics parameter conditions min. typ. max. units rated power t a = 0c to 70c 5.0 w voltage set point accuracy see tolerance envelope line regulation high v in to low v in 1.1 %/% load regulation 10% load to rated load, 5v output types 7 12 % 10% load to rated load, 12v & 15v output types 5 7.5 ripple and noise bw=dc to 20mhz, all output types 125 mv p-p absolute maximum ratings short-circuit protection 2 1 second lead temperature 1.5mm from case for 10 seconds 300c input voltage v in , nmxu05 types 7v input voltage v in , nmxu12 types 15v 1. calculated using mil-hdbk-217f with nominal input voltage at full load. 2. supply voltage must be disconnected at the end of the short circuit duration. all speci?cations typical at t a =25c, nominal input voltage and rated output current unless otherwise speci?ed. features rohs compliant single or dual output 1kvdc isolation pin compatible with nmxso series power density 0.85w/cm 3 ul 94v-0 package material footprint 5.88cm 2 industry standard pinout 5v & 12v input 5v, 12v & 15v output no heatsink required internal smd construction fully encapsulated with toroidal magnetics no external components required pcb mounting description the nmxu series of dc/dc converters is par- ticularly suited to isolating and/or converting dc power rails. the galvanic isolation allows the device to be con?gured to provide an isolated negative rail in systems where only positive rails exist. the devices are particularly suited for use in distributed power systems where there is low variation in the bus voltage levels. & s soat soat
nmxu series isolated 5w single & dual output dc/dc converters kdc_nmxu.d01 page 2 of 3 www.murata-ps.com/support isolation characteristics parameter conditions min. typ. max. units isolation test voltage flash tested for 1 second 1000 vdc resistance viso= 1000vdc 1 g general characteristics parameter conditions min. typ. max. units switching frequency all input types 70 khz temperature characteristics parameter conditions min. typ. max. units speci?cation all output types 0 70 c storage -55 100 case temperature rise above ambient 5v output types 30 all other output types 20 cooling free air convection 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 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 nmxu series of dc/dc converters are all 100% production tested at their stated isolation voltage. this i s 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 nmxu 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 materi- als, construction and environment. the nmxu series has toroidal isolation transformers, with no additional insulation between p rimary 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 wir e insulation. any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implyi ng 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 voltag e be 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. 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 this product series is matte tin over nickel preplate. the series is backward compatible with sn/pb soldering systems. for further information, please visit www.murata-ps.com/rohs
nmxu series isolated 5w single & dual output dc/dc converters kdc_nmxu.d01 page 3 of 3 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. ? 2013 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 single output variants dual output variants pin function pin function 1-v in 1v in 2+v in 2+v in 3+v out 3+v out 4 not ?tted 4 common 5-v out 5-v out recommended footprint details tube outline dimensions * pin not ?tted on single output 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. weight: 10g 0.4 (10.16) 0.4 (10.16) 0.093 (2.35) 0.2 (5.08) 0.80 (20.32) 0.157 (4.0) 0.394 (10.00) 0.925 (23.50) 0.985 (25.03) xyyww NMXD0515UC 0.063 (1.59) 1 2 3 4 5 * 0.0350.00197 (0.900.05) 0.0098 0 (0.250.
? ) 0 - & 4
* hole not required for single output variants all dimensions in inches 0.01 (mm 0.25mm).
not to scale. all dimensions in inches 0.01 (mm 0.25mm).
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