nt a series isolated 1w dual output sm dc-dc converters www.dc-dc.com features n w ide temperature performance at full 1watt load, -40? to 85? n lead frame technology n cecc00802 reflow (280?) n dual isolated output n 1kvdc isolation n efficiency to 78% n power density 1.36w/cm 3 n 3.3v, 5v & 12v input n 5v, 9v, 12v and 15v output n footprint over pins 1.64cm 2 n ul 94v-0 package material n no heatsink required n internal smd construction n t oroidal magnetics n plastic encapsulated n mttf up to 1.69 million hours n custom solutions available n multi layer ceramic capacitors n lead free compatible description the nta series of miniature surface mounted dc-dc converters employ leadframe technology and transfer moulding techniques to bring all of the benefits of ic style packaging to hybrid circuitr y . the devices ar e fully compatible with cecc00802 to 280? which allows them to be placed and reflowed with ic?, thus reducing time and cost in production. 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. 1 calculated using mil-hdbk-217f with nominal input voltage at full load at 25?. 2 see derating curve. 3 12v input types have typically 3% less load regulation change. 4 supply voltage must be discontinued at the end of the short circuit duration. 5 if components are required in tape and reel format suffix order code with -r, e.g. nta0505m-r all specifications typical at t a =25 c, nominal input voltage and rated output current unless otherwise specified. parameter conditions min typ max units continuous operation, 3.3v input types 2.97 3.3 3.63 v oltage range continuous operation, 5v input types 4.5 5 5.5 v continuous operation, 12v input types 10.8 12 13.2 reflected ripple cur r ent 41 47 ma p-p short circuit duration 4 1second internal power dissipation 550mw lead temperature 1.5mm from case for 10 seconds 300? input voltage v in , nta03 types 5.5v input voltage v in , nta05 types 7v input voltage v in , nta12 types 15v input characteristics absolute maximum ratings parameter conditions min typ max units rated power 2 t a = -40? to 85? 1.0 w v oltage set point accuracy see tolerance envelope line regulation high v in to low v in 1.0 1.2 %/% 10% load to rated load, 11 14 nta0312m, nta0315m load regulation 3 10% load to rated load, 5v output types 10 12 10% load to rated load, 9v output types 6.5 8 % 10% load to rated load, 12v output types 6.0 8.5 10% load to rated load, 15v output types 6.0 7.0 ripple and noise bw=dc to 20mhz, 5v output types 50 100 mv p-p bw=dc to 20mhz, 9v output types 35 80 bw=dc to 20mhz, 12v output types 50 110 bw=dc to 20mhz, 15v output types 65 110 output characteristics selection guide nominal input input output output cur r ent at isolation v oltage v oltage cur r ent rated load efficiency capacitance mttf 1 o rd e rc o d e 5 (v) (v) (ma) (ma) (%) (pf) khrs nta0312m 3.3 12 ?2 390 77 40 375 nta0315m 3.3 15 ?3 392 77 42 206 nta0505m 5 5 ?00 290 69 33 1697 nta0509m 5 9 ?5 267 75 38 682 nta0512m 5 12 ?2 260 77 44 343 nta0515m 5 15 ?3 256 78 43 188 nta1205m 12 5 ?00 121 69 50 559 nta1209m 12 9 ?5 113 74 72 375 nta1212m 12 12 ?2 111 75 89 243 nta1215m 12 15 ?3 110 76 100 154 i when operated without additional external load capacitance, the output voltage of the devices is guaranteed to be within 95% of its steady state value within 100ms after the input voltage has reached 95% of its steady state value, ir r espective of the rise time of the input voltage . ii 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.
nt a series isolated 1w dual output sm dc-dc converters c&d technologies (ncl) ltd t anners drive, blakelands north milton keynes mk14 5bu, england t el: +44 (0)1908 615232 fax:+44 (0)1908 617545 email: info@cdtechno-ncl.com www: http://www.dc-dc.com c&d technologies (ncl), inc. 5816 creedmoore road, raleigh nc 27612, usa t el: +1 (919) 571-9405 fax: +1 (919) 571-9262 email: info@us.cdtechno-ncl.com c&d technologies (ncl) limited reserve the right to alter or improve the specification, internal design or manufacturing process at any time, without notice. please check with your supplier or visit our web site to ensure that you have the cur r ent and complete specification for your product before use. ?c&d technologies (ncl) limited 2001 ndc nta.3 no part of this publication may be copied, transmitted or stored in a r etrieval system or reproduced in any way including, but not limited to, photography, photocopy, magnetic or other recording means, without prior written permission from c&d technologies (ncl) limited. instructions for use are available from www.dc-dc.com isolation characteristics general characteristics temperature characteristics performance characteristics parameter conditions min typ max units isolation test voltage flash tested for 1 second 1000 vdc resistance v iso=1000vdc 10 g w parameter conditions min typ max units switching frequency 3v input types 100 khz 5v & 12v input types 115 parameter conditions min typ max units specification all output types -40 85 ? storage -55 125 ? case temperatur e nta312m, nta0315m 19 above ambient 5v output types 46 ? all other output types 35 cooling free air convection tolerance envelope + 10% +5% v nominal temperature derating graph 2.0 1.5 1.0 0.5 0 +2.5% -2.5% -7.5% mechanical dimensions 10 50 100 output load cur r ent (%) -40 0 50 100 150 ambient temperature (?) 85? safe operating area pin 1 gnd 3 v in 5 na 7 0v 9 -v 10 na 12 +v 14 na 16 na 18 na all dimensions in mm xx.xx ?.25mm. all pins on a 2.54mm pitch. na ?ot for electrical connection w e i g h t : 1 . 5 3 g 1 5.24 1 0. 16 11 .20 10 .40 6.60 (5.95) (6.35) 5.85 0.65 0.55 0.30 0.20 1.875 max detail a detail a 1 .50 1 .20 7.70 2.54 2.10 0.5 reference plane 5. 00 0. 25 0.10 2.79max 1 3 5 7 9 1012141618 0.1 s 0.2 m p s p nta0505m xyyww 1 0 pins seating plane s
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