nds6 series isolated 6w wide input single & dual output dc/dc converters kdc_nds6.c05 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 2 input voltage output voltage output current input current current ripple & noise ef?ciency mttf 1 nom. min. load 100% load 0% load 100% load shut down min. typ. v v a a ma ma ma mv p-p % % khrs nds6d2405c 24 5 0.06 0.6 7 300 1.1 40 81 83 NDS6D2412C 24 12 0.025 0.250 7 290 1.1 40 85 87 nds6d2415c 24 15 0.020 0.200 7 290 1.1 45 85 87.5 nds6s2405c 24 5 0.12 1.2 4 305 1.1 40 81 82 nds6s2412c 24 12 0.05 0.5 5.5 290 1.1 40 85.5 87 nds6s2415c 24 15 0.04 0.4 6 290 1.1 40 85.5 87 input characteristics parameter conditions min. typ. max. units voltage range all nds6d24 & nds6s24 types 18 24 36 v re?ected ripple current all nds6d24 & nds6s24 types 7 ma p-p output characteristics parameter conditions min. typ. max. units rated power 6w voltage set point accuracy postive & negative except 2 % nds6d2405 negative output 4 line regulation low line to high line 0.01 0.1 % load regulation 10% total load to 100% total load 0.003 0.5 % cross regulation % voltage change on negative output when positive load varies from 12.5% to 37.5% with negative load ?xed at 50% 5v 5 % 12v & 15v 2 isolation characteristics parameter conditions min. typ. max. units isolation test voltage flash tested for 1 second 1500 vdc resistance viso = 1kvdc 1 g capacitance 225 pf absolute maximum ratings short-circuit protection continuous internal power dissipation 2.7w lead temperature 1.0mm from case for 10 seconds (to jedec jesd22-b106 iss c) 260c minimum output load for speci?cation 3 10% of rated load on each output control pin input voltage 18v input voltage, nds6 24v input types 40v 1 calculated using mil-hdbk-217f with nominal input voltage at full load. 2 to order with optional control pin, pre?x c with e. for example nds6d0505ec. 3 operation below 10% minimum load may cause increased output ripple. all speci?cations typical at t a =25 c, nominal input voltage and rated output current unless otherwise speci?ed. features ul 60950 recognized rohs compliant 2:1 wide range voltage input operating temperature range C40c to 85c short circuit protection 0.003% typical load regulation 1.5kvdc isolation ef?ciency from 81% 24v nominal input single & dual outputs power density 0.94w/cm 3 optional remote on/off ul 94v-0 package materials no electrolytic capacitors low noise product overview the nds6 series of dc/dc converters offer single and dual output voltages from an input voltage range of 18-36v. the nds6 is housed in an indus- try standard package with a standard pinout. the nds6 is packaged in a metal case for improved emi shielding and is also encapsulated for supe- rior thermal performance. versions with optional remote on/off control pin are also available. applications include telecommunications, battery powered systems, process control and distributed power systems.
nds6 series isolated 6w wide input single & dual output dc/dc converters kdc_nds6.c05 page 2 of 6 www.murata-ps.com/support general characteristics 1 parameter conditions min. typ. max. units switching frequency 130 khz control pin input module on (or pin unconnected) 3.0 v 0ma module off 0.8 v 1.5 ma temperature characteristics parameter conditions min. typ. max. units operation -40 85 c storage -50 130 case temperature rise above ambient 100% load, nom v in , still air, 5v 29 12v & 15v 22 thermal shutdown case temperature 110 application notes control pin nds6d cross regulation this provides an off function, which puts the converter into a low power mode, when the voltage applied to the pin is less than 0.8v. when the pin is high or un-connected, the converter is on. load regulation is at its best when the positive and negative loads are balanced. when the loads are asymmetric, the negative output is not as tightly regulated as the positive output. to meet datasheet speci?cation, a minimum load of 10% of output load current is required on each output. the nds6d can be used with much lighter loading but the negative output voltage may rise above maximum datasheet speci?cation. output capacitors the nds6 series does not require output capacitors to meet datasheet speci?cation. to meet datasheet speci?cation, output capac itance should not exceed: output voltage (v) output capacitance (f) 5 470 12 470 15 220 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 nds6 series of dc/dc converters are all 100% production tested at their stated isolation voltage. this i s 1.5kvdc for 1 second. a question commonly asked is, what is the continuous voltage that can be applied across the part in normal operation? the nds6 has been recognized by underwriters laboratory for functional isolation. both input and output should normally be main tained within 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 an element of a safety isolation system. the part could be expected to function correctly with several hundred volts offset applied continuously across the isolation ba rrier; but 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 c ircuits 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 nds6 series has an er ferrite core, with no additional insulation between primary and seconda ry 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 insulation. any m aterial, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tes ts should be strictly limited. we therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% fr om 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.
nds6 series isolated 6w wide input single & dual output dc/dc converters kdc_nds6.c05 page 3 of 6 www.murata-ps.com/support safety approval the nds6 series has been recognised by underwriters laboratory (ul) to ul 60950 for functional insulation in a maximum ambient temperature of 85oc and/or case temperature limit of 120oc (case temperature measured on the face opposite the pins). file number e151252 applies. note: this series gained ul 60950 recognition for products manufactured on or after datecode g1148, any nds6 parts manufactured before this date code should not be consid- ered ul 60950 recognized. any nds6 that is ul recognized will be printed with the ul logo. rohs compliance information this series is compatible with rohs soldering systems with a peak wave solder temperature of 260oc for 10 seconds. the pin term ination ?nish on this product series is a gold ?ash (0.05-0.10 micron) over nickel preplate. the series is backward compatible with sn/pb sol dering systems. for further information, please visit www.murata-ps.com/rohs characterisation test methods ripple & noise characterisation method ripple and noise measurements are performed with the following test con?guration. c1 1f x7r multilayer 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 efficiency vs load nds 24v input, dual output nds 24v input, single output oscilloscope y input supply c1 c2 c3 r1 t1 r2 input output dc/dc converter r load + + - - 0 10 20 30 40 50 60 70 80 90 010 2030405060708090100 load (%) ef?ciency (%) 15v 12v 5v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 load (%) ef?ciency (%) 15v 12v 5v
nds6 series isolated 6w wide input single & dual output dc/dc converters kdc_nds6.c05 page 4 of 6 www.murata-ps.com/support temperature derating nds6d2405c NDS6D2412C nds6d2415c nds6s2405c nds6s2412c nds6s2415c ambient temperature (oc) output power (w) 0 1 2 3 4 5 6 7 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 600 lfm 500 lfm 400 lfm 300 lfm 200 lfm 100 lfm still air ambient temperature (oc) output power (w) 0 1 2 3 4 5 6 7 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 600 lfm 500 lfm 400 lfm 300 lfm 200 lfm still air 100 lfm ambient temperature (oc) output power (w) 0 1 2 3 4 5 6 7 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 600 lfm 500 lfm 400 lfm 300 lfm still air 200 lfm 100 lfm 0 1 2 3 4 5 6 7 -40-30-20-100 1020304050607080 ambient temperature (oc) output power (w) still air 600 lfm 500 lfm 400 lfm 300 lfm 200 lfm 100 lfm 0 1 2 3 4 5 6 7 -40-30-20-100 1020304050607080 ambient temperature (oc) output power (w) still air 600 lfm 500 lfm 400 lfm 300 lfm 200 lfm 100 lfm 0 1 2 3 4 5 6 7 -40-30-20-100 1020304050607080 ambient temperature (oc) output power (w) still air 600 lfm 500 lfm 400 lfm 300 lfm 100 lfm 200 lfm
nds6 series isolated 6w wide input single & dual output dc/dc converters kdc_nds6.c05 page 5 of 6 www.murata-ps.com/support emc filtering and spectra filtering the module includes a basic level of ?ltering, typically suf?cient to meet en 55022 curve a quasi-peak emc limit, as shown in t he following plots. nds6s2405c nds6s2412c nds6s2415c nds6d2405c NDS6D2412C nds6d2415c 0 10 20 30 40 50 60 70 80 90 100000 1000000 10000000 100000000 frequency (hz) conducted emissions (dbuv) 0 10 20 30 40 50 60 70 80 90 100000 1000000 10000000 100000000 frequency (hz) conducted emissions (dbuv) 0 10 20 30 40 50 60 70 80 90 100000 1000000 10000000 100000000 frequency (hz) conducted emissions (dbuv) 0 10 20 30 40 50 60 70 80 90 100000 1000000 10000000 100000000 frequency (hz) conducted emissions (dbuv) 0 10 20 30 40 50 60 70 80 90 100000 1000000 10000000 100000000 frequency (hz) conducted emissions (dbuv) 0 10 20 30 40 50 60 70 80 90 100000 1000000 10000000 100000000 frequency (hz) conducted emissions (dbuv)
nds6 series isolated 6w wide input single & dual output dc/dc converters kdc_nds6.c05 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 mechanical dimensions pin connections pin function single dual 2-v in -v in 3-v in -v in 5* on/off on/off 9 no pin ov 11 n/c -v out 14 +v out +v out 16 -v out ov 22 +v in +v in 23 +v in +v in * optional pin tube outline dimensions recommended footprint details weight: 16.4g typ. * optional pin all dimensions in mm 0.25mm (inches 0.010). tube length 520 (20.47) all dimensions in mm 0.25mm (inches 0.010). quantity: 15 0.787 (20.0) 1.26 (32.0) xyyww nds6xxxxxc 0.02 (0.5) 0.394 (10.0) 0.600 (15.24) 0.093 (2.36) 0.100 (2.54) 0.0177-0.0217 (0.45-0.55) 0.180 (4.57) 0.200 (5.08) 0.200 (5.08) 0.600 (15.24) 0.256 (6.50) 14 16 22 23 11 9 5 * 3 2 1.000.15 (0.040.006) 23.0 (0.906) 8.5 (0.335) 20.5 (0.807) 0.1 (2.54) ? 8 holes 0.039 (1.0) 0.1 (2.54) * all dimensions in mm (inches) 0.5 (0.020) except pin to pin tolerance 0.25 (0.010). all pins on a 2.54 (0.100) pitch and within 0.25 (0.010) of true position. the copper case is connected to the output (-v out ) pin. care is needed in the design of this circuit board on which the converter is mounted. top side tracks must not contact the edge of the case on the underside of the unit. please note that from 2010 onwards, you may receive either a blue or a black case.
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