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nth series isolated 2w dual output sm dc/dc converters kdc_nth.c02 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 1 nominal input voltage output voltage output current input current at rated load ef?ciency isolation capacitance mttf 2 v v ma ma % pf khrs nth0505mc 5 5 200 500 80 27 2175 nth0509mc 5 9 111 494 81 34 913 nth0512mc 5 12 83 488 82 39 465 nth0515mc 5 15 67 476 84 37 257 nth1205mc 12 5 200 208 80 35 675 NTH1209MC 12 9 111 201 83 57 472 nth1212mc 12 12 83 198 84 66 315 nth1215mc 12 15 67 198 84 63 204 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 re?ected ripple current 5v input types 40 ma p-p 12v input types 30 output characteristics parameter conditions min. typ. max. units rated power 3 t a =-40c to 85c 2.0 w voltage set point accuracy nthxx05, 10% to 100% load -5.0 7.5 % all other variants, 10% to 100% load -5.0 5.0 line regulation high v in to low v in 1.0 1.2 %/% load regulation 2 10% load to rated load, 5v output types 5.0 10 % 10% load to rated load, all other output types 3.0 10 ripple & 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 isolation characteristics parameter conditions min. typ. max. units isolation test voltage flash tested for 1 second 1000 vdc resistance viso= 500vdc 1 10 g general characteristics parameter conditions min. typ. max. units switching frequency all 5v input types 95 khz all 12v input types 90 absolute maximum ratings lead temperature 1.5mm from case for 10 seconds 300c internal power dissipation 550mw input voltage v in , nth05 types 7v input voltage v in , nth12 types 15v 1. if components are required in tape and reel format suf?x order code code with -r, e.g. nth0505mc-r. 2. calculated using mil-hdbk-217f with nominal input voltage at full load. 3. see derating graph. all speci?cations typical at t a =25c, nominal input voltage and rated output current unless otherwise speci?ed. description the nth series of miniature surface mounted dc/dc converters employ leadframe technol- ogy and transfer moulding techniques to bring all of the bene?ts of ic style packaging to hy- brid circuitry. the component lead termination of this product range is lead-free compatible, therefore the converter can be soldered in a lead-free soldering process. co-planarity of the lead positions is based upon iec 191-6:1990. the devices are suitable for all applications where high volume production is envisaged. features ? rohs compliant ? ef?ciency up to 84% ? wide temperature performance at full 2 watt load, C40c to 85c ? ul 94v-0 package material ? lead frame technology ? 5v & 12v input ? 5v, 9v, 12v & 15v output ? internal smd construction ? dual isolated output ? 1kvdc isolation ? mttf up to 2.17 million hours ? power density 1.61w/cm 3 ? no heatsink required ? custom solutions available ? multi layer ceramic capacitors
nth series isolated 2w dual output sm dc/dc converters kdc_nth.c02 page 2 of 6 www.murata-ps.com/support temperature characteristics parameter conditions min. typ. max. units speci?cation all output types -40 85 c storage -55 125 case temperature rise above ambient 5v output types 30 all other output types 25 cooling free air convection tolerance envelope temperature derating graph 150 100 50 0 -40 0 1.0 2.0 3.0 safe operating area 85c ambient temperature (c) output power (w) rohs compliance information this series is compatible with rohs soldering systems with a peak re?ow solder temperature of 245oc and time above liquidus of 217oc for 60 seconds. the pin termination ?nish on this product series is gold, plating thickness 0.1 microns minimum. the series is backward compatible with sn/pb soldering systems. for further information, please visit www.murata-ps.com/rohs output load current (%) output voltage -5.0% -1.5% +2.0% typical load line 100 75 50 25 10 +5% +1.5% -2.0% output load current (%) output voltage -5.0% -1.25% +2.5% typical load line 100 75 50 25 10 0% +7.5% +3.75% 5v output types all other output types 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 nth 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 nth 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 nth 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. 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.
nth series isolated 2w dual output sm dc/dc converters kdc_nth.c02 page 3 of 6 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 s nth0505mc 1026 nth0509mc 3625 nth0512mc 5750 nth0515mc 8330 nth1205mc 691 NTH1209MC 2645 nth1212mc 3285 nth1215mc 6120
nth series isolated 2w dual output sm dc/dc converters kdc_nth.c02 page 4 of 6 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 nth0505mc 10 82103c 11r103c 4.7 nth0509mc 22 82223c 11r223c 2.2 nth0512mc 47 82473c 11r473c 1 nth0515mc 220 82474c 11r474c 0.22 nth1205mc 10 82103c 11r103c 4.7 NTH1209MC 22 82223c 11r223c 2.2 nth1212mc 47 82473c 11r473c 1 nth1215mc 220 82474c 11r474c 0.22
nth series isolated 2w dual output sm dc/dc converters kdc_nth.c02 page 5 of 6 www.murata-ps.com/support package specifications mechanical dimensions pin connections pin function 1-v in 3+v in 5na 9-v out 11 ov 13 +v out 14 na 16 na 18 -v out 22 nc 24 na 26 na na - not available for electrical connection. nc - no internal electrical connection.- recommended footprint details tube outline dimensions all dimensions in inches 0.01 (mm 0.25mm). all pins on a 0.1 (2.54) pitch. weight: 2.75g all dimensions in inches 0.02 (mm0.5). tube length : 18.700.079 (4752.0). tube quantity : 25 113 26 14 35 911 16 18 22 24 0.226 (5.75) 0.207 (5.25) 0.010 (0.25) 0.004 (0.10) 2.74 (0.108) max 0.06 (1.52) max 0.004 (0.1) s 0.108 (2.75) 0.700 (17.78) 0.500 (12.70) 0.710 (18.03) 0.690 (17.53) 0.100 (2.54) 0.600 (15.24) 0.008 (0.2) s seating plane s 5.0 0.020 (0.50) x12 pins reference plane detail a detail a 12 pins 0.029 (0.74) 0.025 (0.64) 5.35 (0.236) 6.00 (0.211) 0.008 (0.2) s 0.012 (0.30) 0.008 (0.20) x12 pins 0.0416-0.0534 (1.0565-1.3565) nth0505mc xyyww

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nth series isolated 2w dual output sm dc/dc converters kdc_nth.c02 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/ tape & reel specifications reel outline dimensions tape outline dimensions reel packaging details trailer section 6.30 (160) min goods enclosure section leader section 15.75 (400) min carrier tape start 3.94 (100) min xyyww nth0505mc xyyww nth0505mc xyyww nth0505mc
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reel quantity : 400 0.157 (4.00) 0.079 (2.00) 0.722 (18.33) 0.069 (1.75) 0.559 (14.20) 1.2600.012 (32.000.30) 0.726 (18.43) 0.394 (10.00) 0.945 (24.00) 0.024 (0.60) max 0.262 (6.65) 0.234 (5.95) 0.0080.002 (0.200.05) 1.118 (28.40) 0.002 (0.05) ?0.079 (?2.00) min cover tape ?1.50 +0.10 -0.00 (?0.059 +0.004 -0.000 ) (r0.75 ) +0.05 -0.00 r0.030 +0.002 -0.000 direction of unreeling xyyww nth0505mc a ll dimensions in inches 0.02 (mm0.5) a ll dimensions in inches 0.02 (mm0.5) a ll dimensions in inches 0.02 (mm0.5)

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