www.micropowerdirect.com micropower direct 292 page street suite d stoughton, ma 02072 usa t: (781) 344-8226 f: (781) 344-8481 e: sales@micropowerdirect.com w: www.micropowerdirect.com key features: ? 8w output power ? 4:1 input voltage range ? en 60950 approved ? compact dip case ? 1,600 vdc i/o isolation ? meets en 55032 ?a? ? single & dual outputs ? remote on/off control ? wide temperature operation ? industry standard pin-out ma800ru 4:1 input range, 8w single & dual output dc/dc con vert ers series electrical speci? cations speci cations typical @ +25?, nominal input voltage & rated output current, unless otherwise noted. speci cations subject to change without notice. input parameter conditions min. typ. max. units input voltage range 24 vdc input 9.0 24.0 36.0 vdc 48 vdc input 18.0 48.0 72.0 start up time nominal v in & constant resistive load 20 ms input filter (pi) filter input re? ected ripple current 20.0 ma p - p output parameter conditions min. typ. max. units output voltage accuracy 1.2 % line regulation v in = min to max 0.2 % load regulation, see note 2 single output 0.5 % dual output 1.0 cross regulation, dual output see note 3 5.0 % ripple & noise (20 mhz) see note 4 75 mv p - p transient recovery time, see note 5 25% load step change 250 sec transient response deviation 3.0 % output power protection 150 % i out temperature coef? cient 0.02 %/oc output short circuit protection continuous (autorecovery) general parameter conditions min. typ. max. units isolation voltage input/output, 60 seconds 1,600 vdc case/input, output, 60 seconds 1,600 isolation resistance 500 vdc 1,000 m isolation capacitance 100 khz/1v 1,500 pf switching frequency 270 khz remote on/off (see page 2) parameter conditions min. typ. max. units supply on see note on page 3 3.0 12 vdc supply off 0.0 1.2 vdc standby input current 5.0 ma control common referenced to -input (pins 2, 3) environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +85 oc case +105 oc storage temperature range -40 +125 oc cooling free air convection humidity rh, non-condensing 95 % physical case size see mechanical diagram (page 3) case material copper with nickel coating (ul94v-0) weight 0.63 oz (18g) reliability speci? cations parameter conditions min. typ. max. units mtbf mil hdbk 217f, 25oc, gnd benign 1.0 mhours safety standards ul 60950, en 62368, en 60950 absolute maximum ratings parameter conditions min. typ. max. units input voltage surge (1 sec) 24 vdc input 50.0 vdc 48 vdc input 100.0 lead temperature 1.5 mm from case for 10 sec 260 oc caution: exceeding absolute maximum ratings may damage the module. these are not continuous operating ratings.
www.micropowerdirect.com page 2 we power your success - for less model selection guide notes: 1. the speci ed maximum capacitive load is for each output. 2. load regulation is speci ed for a load change of 0% to 100%. load regulation for 3.3v output models is 1.0% max for a load change of 0% to 100%. 3. when measuring cross regulation, the load on one output is varied from 25% to 100% while the other output is held at 100%. 4. output ripple is measured with a 1.0 f capacitor connected from the +v out to the -v out pins for single output units and from each output to common for dual output models. see the typical connection diagram & notes on page 3. 5. transient recovery is measured to within a 1% error band for a load step change of 75% to 50% to 25%. 6. operation at no-load will not damage these units. however, they may not meet all speci cations. 7. it is recommended that a fuse be used on the input of a power supply for protection. see the table above for the correct rating. temperature derating curve model number input output over voltage protection (vdc) max capacitive load (f max) ef? ciency (%, typ) fuse rating slow-blow (ma) voltage (vdc) current (ma) voltage (vdc) current (ma, max) current (ma, min) nominal range full-load no-load ma824s-03ru 24 9.0 - 36.0 345 10 3.3 2,000 0.0 3.9 1,330 80 2,000 ma824s-05ru 24 9.0 - 36.0 380 10 5.0 1,500 0.0 6.2 1,330 83 2,000 ma824s-12ru 24 9.0 - 36.0 385 15 12.0 665 0.0 15.0 288 87 2,000 ma824s-15ru 24 9.0 - 36.0 385 15 15.0 535 0.0 18.0 200 87 2,000 ma824d-05ru 24 9.0 - 36.0 400 10 5.0 800 0.0 15.0 900 86 2,000 MA824D-12RU 24 9.0 - 36.0 390 15 12.0 335 0.0 15.0 133 86 2,000 ma824d-15ru 24 9.0 - 36.0 385 15 15.0 265 0.0 18.0 90 87 2,000 ma848s-03ru 48 18.0 - 75.0 170 10 3.3 2,000 0.0 3.9 1,330 80 1,000 ma848s-05ru 48 18.0 - 75.0 185 10 5.0 1,500 0.0 6.2 1,330 84 1,000 ma848s-12ru 48 18.0 - 75.0 190 10 12.0 665 0.0 15.0 288 87 1,000 ma848s-15ru 48 18.0 - 75.0 190 10 15.0 535 0.0 18.0 200 87 1,000 ma848d-05ru 48 18.0 - 75.0 200 10 5.0 800 0.0 15.0 900 84 1,000 ma848d-12ru 48 18.0 - 75.0 190 10 12.0 335 0.0 15.0 133 87 1,000 ma848d-15ru 48 18.0 - 75.0 190 10 15.0 265 0.0 18.0 90 87 1,000 typical connection emi characteristics parameter standard criteria/level radiated emissions en 55032 class a conducted emissions en 55032 class a esd en 61000-4-2 a rs en 61000-4-3 a eft en 61000-4-4 a surge en 61000-4-5 a cs en 61000-4-6 a pfm en 61000-4-8 a to help meet conducted emissions requirements, the lter components (c 2 , c 3 & l 1 ) in the diagram above should be used. the recommended values are 2.2 f/100v for c 2 & c 3 and 12 h for l 1 . these components should be mounted as close to the module as possible. to meet the requirements of en 61000-4-4 & en 61000-4-5, an external lter capacitor (c 1 in the diagram above) is required. the recommended value for c 1 is 330 f/100v. when measuring output ripple, it is recommended that an external 1.0 f ceramic capaci- tor be placed from the +v out pin to the -v out pin for single output units and from each output to common for dual output units. for noise sensitive applications, the use of 3.3 f capacitors will reduce the output ripple. the remote on/off circuit is referenced to the minus input of the unit (pins 2 & 3). if the on/off input (pin 1) is connected to the minus input, the unit is shut off. if pin 1 is left open, the unit operates normally.
www.micropowerdirect.com micropower direct we power your success - for less! 292 page street ste d stoughton, ma 02072 ? tel: (781) 344-8226 ? fax: (781) 344-8481 ? e-mail: sales@micropowerdirect.com mechanical dimensions mechanical notes: all dimensions are typical in inch es (mm) tolerance x.xx = ?.02 (?.50) mecha n ical no t es: all di mens i ons are typ i ca l i n i nc h es ( mm ) t o l erance x.xx = ?.02 ( ?.50 ) pin single dual 1 remote on/off remote on/off 2- v in -v in 3- v in -v in 9 no pin common 11 nc -v out 14 +v out +v out 16 -v out common 22 +v in +v in 23 +v in +v in nc: no connection pin connections ef? ciency vs output load : 48 v in models ef? ciency vs output load : 24 v in models mpd offers a wide range of dc/dc converters in the standard 24 pin dip package. models range from 1w to 15w and offer wide input ranges, high isolation & tight regulation. many are approved to en 60950. for full in- formation, go to our website or contact the factory.
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