hybrid ic VLA217-241218 non-isolated type dc-dc converter descripiton VLA217-241218 is a non-isolated type dc-dc converter. features ?input dc9 v~ 36v ?output 12v, 1.5a (18w) 5v, 1.5a (7.5w) 3.3v, 1.5a (4.95w) (adjust external resistance) ?over current protection (auto resumption) applications machine control block diagram dimensions : mm outline drawing VLA217-241218 ? xxxx
hybrid ic VLA217-241218 non-isolated type dc-dc converter 2 maximum ratings (unless otherwise noted, ta=25c) symbol parameter e ? o? vin input voltage 36 v io output voltage 1.5 a topr operating temperature no condensation (*1) -20 ~ +70 c ts t g storage temperature no condensation -20 ~ +80 c (*1) please refer to de- rating characteristics. electrical characteristics (unless otherwise noted, vin=24v, ta=25c) symbol parameter conditions limits unit min. typ. max. vin input voltage recommended range (*2) 9 24 36 v vo output voltage io=0.075a ~ 1.5a (*3) 11.4 12.0 12.6 v 4.75 5.00 5.25 v 3.14 3.30 3.46 v reg-i input regulation vo=12v: io=1.5a, vin=9v ~ 36v - - 240 mv vo=5v: io=1.5a, vin=9v ~ 36v - - 100 mv vo=3.3v: io=1.5a, vin=9v ~ 36v - - 33 mv reg-l load regulation vo=12v: io=0.075a ~ 1.5a - - 360 mv vo=5v: io=0.075a ~ 1.5a - - 150 mv vo=3.3v: io=0.075a ~ 1.5a - - 99 mv vp-p ripple voltage vo=12v: io=1.5a (*4) - - 600 mv vo=5v: io=1.5a (*4) - - 250 mv vo=3.3v: io=1.5a (*4) - - 215 mv efficiency vo=12v: io=1.5a, vin=24v - 87 - % vo=5v: io=1.5a, vin=24v - 77 - % vo=3.3v: io=1.5a, vin=24v - 70 - % (*2) when output voltage is 12v, minimum input voltage is 18v (*3) adjust external resistance (please refer to ?chart 1? in page 3.) (*4) not contain the spike noise.
hybrid ic VLA217-241218 non-isolated type dc-dc converter 3 test circuit diagram value of resistance r1 r2 r3 output voltage 12v 47k ohm 2.2k ohm 1.2k ohm 5v 15k ohm 3.3k ohm 1k ohm 3.3v 6.8k ohm 3.9k ohm 1k ohm *1 r1, r2 (tolerance 1%), r3 chart 1 *2 please do not connect anyt hing with the test pin( no.3). vo= (r1+r2+3900) 2.26 10 -4 maximum value of r1+r2 must be 50kohm. minimum value of r1+r2 must be 10.7kohm
hybrid ic VLA217-241218 non-isolated type dc-dc converter 4 typical characteristics (de-rating)
hybrid ic VLA217-241218 non-isolated type dc-dc converter 5 typical characteristics (vo=12v) (ta=25 c )
hybrid ic VLA217-241218 non-isolated type dc-dc converter 6 typical characteristics (vo=5v) (ta=25 c )
hybrid ic VLA217-241218 non-isolated type dc-dc converter 7 typical characteristics (vo=3.3v) (ta=25 c )
hybrid ic VLA217-241218 non-isolated type dc-dc converter 8 for ? safety ? using ? ????? great ? detail ? and ? careful ? attention ? are ? given ? to ? the ? production ? activity ? of ? hics, ? such ? as ? the ? development, ? the ? quality ? of ? production, ? ?????? and ? in ? it?s ? reliability. ?? however ? the ? reliability ? of ? hics ? depends ? not ? only ? on ? their ? own ? factors ? but ? also ? in ? their ? condition ? of ? usage. ? ?????? when ? handling ? hics, ? please ? note ? the ? following ? cautions. ? ? cautions ? ? packing ? ? ? ? carrying ? ? ? ? ? ? storage ? ? ? ? ? ? ? ? ? extended ? storage ? ? ? ? maximum ? ratings ? ? ? polarity ? ? ? the ? materials ? used ? in ? packing ? hics ? can ? only ? withstand ? normal ? external ? conditions. ? ? when ? exposed ? to ? outside ? shocks, ? rain ? and ? certain ? environmental ? contaminators, ? the ? packing ? ? materials ? will ? deteriorates. ?? please ? take ? care ? in ? handling. ? ? 1) don?t ? stack ? boxes ? too ? high. ?? avoid ? placing ? heavy ? materials ? on ? boxes. ? 2) boxes ? must ? be ? positioned ? correctly ? during ? transportation ? to ? avoid ? breakage. ? 3) don't ? throw ? or ? drop ? boxes. ? 4) keep ? boxes ? dry. ?? avoid ? rain ? or ? snow. ? 5) minimal ? vibration ? and ? shock ? during ? transportation ? is ? desirable. ? ? ? when ? storing ? hics, ? please ? observe ? the ? following ? notices ? or ? possible ? deterioration ? of ? their ? electrical ? ? characteristics, ? risk ? of ? solderability, ? and ? external ? damage ? may ? occur. ???? 1) devices ? must ? be ? stored ? where ? fluctuation ? of ? temperature ? and ? humidity ? is ? minimal, ? and ? must ? ???? not ? be ? exposed ? to ? direct ? sunlight. ?? store ? at ? the ? normal ? temperature ? of ? 5 ? to ? 30 ? degrees ? celsius ? ???? with ? humidity ? at ? 40 ? to ? 60%. ? 2) avoid ? locations ? where ? corrosive ? gasses ? are ? generated ? or ? where ? much ? dust ? accumulates. ? 3) storage ? cases ? must ? be ? static ? proof. ? 4) avoid ? putting ? weight ? on ? boxes. ? ? ? when ? extended ? storage ? is ? necessary, ? hics ? must ? be ? kept ? non \ processed. ?? when ? using ? hics ? which ? ? have ? been ? stored ? for ? more ? than ? one ? year ? or ? under ? severe ? conditions, ? be ? sure ? to ? check ? that ? the ?? ? exterior ? is ? free ? from ? flaw ? and ? other ? damages. ? ? ? to ? prevent ? any ? electrical ? damages, ? use ? hics ? within ? the ? maximum ? ratings. ?? the ? temperature, ??? ? current, ? voltage, ? etc. ? must ? not ? exceed ? these ? conditions. ? ? ? to ? protect ? hics ? from ? destruction ? and ? deterioration ? due ? to ? wrong ? insertion, ? make ? sure ? of ? polarity ? in ? ? inserting ? leads ? into ? the ? board ? holes, ? conforming ? to ? the ? external ? view ? for ? the ? terminal ? arrangement. ? ? ? marketing division, marketing planning department 6-41 tsukuba, isahaya, nagasaki, 854-0065 japan keep safety first in your circuit designs! ~ isahaya electronics corporation puts the maximum effort in to making semiconductor products better and more reliable, but there is always the possibility that trouble may o ccur with them. trouble with semi conductors may lead to personal injury, fire or property damage. remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (1)placement of substitu tive, auxiliary circuits, (2)use of non-flammable material or (3)prevention agains t any malfunction or mishap. notes regarding these materials ~ these materials are intended as a reference to our customers in the selection of the isahaya products best suited to the customer's application; they don't convey any licens e under any intellectual property rights, or any other rights, belong ing to isahaya electronics corporation or a third party. ~ isahaya electronics corporation assumes no responsibility for any damage, or infringement of any third party's rights, originating in the use of any product data, diagrams, c harts or circuit application exampl es contained in these materials . ~ all information contained in these materi als, including product data, diagrams and c harts, represent information on products at the time of publication of these materials, and ar e subject to change by isahaya el ectronics corporation without notic e due to product improvements or other reasons. it is therefore recommended that customer s contact isahaya electronics corporation or an authorized isahaya products distribut or for the latest product information before purchasing a product listed herein. ~ isahaya electronics corporation products are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. please contact isahaya electronics corporation or an authorized isahaya products distributor when consideri ng the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. ~ the prior written approval of isahaya electronics corporation is nec essary to reprint or reproduce in whole or in part these materials. ~ if these products or technologies are subject to the japanese export control restrictions, they must be exported under a license from the japanese gov ernment and cannot be imported into a count ry other than the approved destination. any diversion or re-export contrary to the export control laws and regulations of japan and/or the country of destination is prohibited. ~ please contact isahaya electronics corporation or an authoriz ed isahaya products distributor for further details on these materials or the products contained therein. oct. 2009
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