nph15s series isolated 15w single output dc-dc converters selection guide features high efficiency to 89% power density up to 2.4w/cm 3 (39w/in 3 ) 1.5kv input to output isolation industry standard pinout ul 1950 recognised non latching current limit constant 350khz frequency v ersatile control options continuous rating to 30w at 40? without heatsink operation to zero load protected against load faults internal over temperature protection uses no electrolytic capacitors ul 94v-0 package materials description the nph15s series of dc-dc converters combines ease of application with versatility. the pin pattern is based on the popular industry standard, but two additional pins may optionally be fitted to provide a variety of features not commonly found on units of this type. high efficiency enables full rating to be achieved in a small package without heatsinking, and a high surge capability will provide for start-up and transient loads, whilst being thermally protected against sustained overload. overload protection of the ?onstant current?type ensures start-up into complex load conditions. the copper case achieves efficient heat transfer and screening. the product range has been recognised by underwriters laboratory (ul) to ul 1950 for operational insulation, file number e179522 applies. nominal output output current input voltage voltage current limit efficiency order code 1 (v) (v) (ma) (a)min (a)max (%) nph15s2403i 24 3.4 4.4 7.5 11.0 81 nph15s2405i 24 5.1 3.0 5.0 7.5 84 nph15s2412i 24 12.1 1.3 2.5 3.7 86 nph15s2415i 24 15.1 1.0 2.0 3.0 87 nph15s4803i 48 3.4 4.4 7.5 11.0 83 nph15s4805i 48 5.1 3.0 5.0 7.5 85 nph15s4812i 48 12.1 1.3 2.5 3.7 88 nph15s4815i 48 15.1 1.0 2.0 3.0 89 parameter conditions min nom max units vo ltage range continuous operation, 24v input types 18 24 36 v continuous operation, 48v input types 36 48 75 parameter conditions min typ max units v oltage set 50% load 0.5 % point error overall case temperature ?0? to 110? v oltage error load 0% - 100% 2.5 % input specified range t emperature coefficient of output voltage 250 ppm? (slope) deviation of output voltage t emperature min-max 0.5 1 % line regulation operating voltage range, 50% load 0.1 % load regulation 0% - 100% rated load 2 0.5 % ripple rms 70 mv input voltage, 24v input types ?.5v to 40v 4 input voltage, 48v input types ?.5v to 80v 4 output voltage ?.3v to regulated voltage output trim control ?v to +30v synchronisation/shutdown control ?5v relative to input return input characteristics output characteristics parameter conditions min typ max units vo ltage trimming at rated load, ?0 % range trim control at either output remote switch input 3 not operating -15 0 1.5 v (voltage relative to input negative) operating, open circuit voltage 9 10 11 start delay t ime from application of valid input voltage to output being in specification 25 50 ms synchronisation 3 specified drive signal 320 440 khz switching frequency 330 350 395 khz control characteristics absolute maximum ratings isolation characteristics parameter conditions min typ max units isolation voltage flash tested for 1 second 1500 vdc resistance viso=500vdc 1 4000 g ? 1 if optional pins adj and ss are required (as indicated in the pin connections diagram) prefix the ending ??with an e when ordering, e.g. nph15s4803ei. 2a minimum load of 10% of rating is recommended for typical applications. 3 optional where fitted. 4 absolute maximum value for 30 seconds. prolonged operation may damage the product. all specifications typical at t a =25?, nominal input voltage and rated output current unless otherwise specified. www.cdpoweronline.com
nph15s series isolated 15w single output dc-dc converters 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 current and complete specification for your product before use. for information and instructions on use, please consult the nph series application notes. ?c&d technologies (ncl) limited 2002 ndc nph15s.5 no part of this publication may be copied, transmitted or stored in a retrieval 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.cdpoweronline.com environmental parameter conditions min typ max units case temperature full load ?0 110 ? storage absolute max internal temperature ?0 125 ? relative humidity non condensing 85? 85 % thermal protection operates at case temperature 110 ? w eight: 36g all dimensions in inches(mm) 0.01(0.25) all pins on a 0.10(2.54) pitch and within ?.01(0.25) of true position case connected to 0v pin 1.97 (50.00) 0.80 (20.32) 0.58 (14.84) 0.98 (25.00) 0.80 20.32 0.4 (10.00) 0.18 (4.50) 0.15 (3.70) 0.40 (1.04) 0.04 (0.90) ss +v in -v in +v out adj 0v 0.39 (9.96) 0.20 (5.08) 0.09 (2.34) thermal characteristics thermal performance ul 1950 recognition - max permissible loads for a given ambient temperature for any nph15s model t emperature (?) power (w) temperature (?) power (w) 40 15.0 80 9.8 50 15.0 85 8.8 60 13.7 90 7.8 70 11.7 max power rating with case temperature maintained by external means (eg forced air cooling) case temperature part number 100? 105? 110? units nph15s2403 19 16 12 nph15s2405 22 19 15 w nph15s2412 25 22 19 nph15s2415 26 24 21 nph15s4803 20 17 13 nph15s4805 23 20 16 w nph15s4812 28 26 23 nph15s4815 30 28 25 mechanical dimensions 35 30 25 20 15 10 5 0 -40 -20 0 20 40 60 80 100 120 ambient temperature (?) 2412 2 415 2405 2403 output power (w) 35 30 25 20 15 10 5 0 -40 -20 0 20 40 60 80 100 120 ambient temperature (?) output power (w) 4 815 4 812 4805 4803 bottom view 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.cdpoweronline.com c&d technologies inc. 3400 e britannia drive, tucson, arizona 85706, usa t el: +1 (800) 547-2537 fax: +1 (520) 741-4598 email: sales@cdtechno.com 0.20 (5.08) 0.20 (5.08)
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