hybrid ic VLA301-243R isolated type dc-dc converter description the VLA301-243R is a dc-dc converter. its output power is 3w and the input is isolated from the output. the over- current protection circuit is built-in and it is the best for on-board power supplies, such as industrial equipment and control equipment. features ?input voltage range:63 to 156v dc ?output: +24v, 130ma (output power : 3.1w) ?thin-profile and lightweight design ?isolation between input and output : 2000vrms, 1min ?built-in over-current protection circuit applications on-board power supplies for control equipment. outline drawing block diagram gate drive over current protection constant voltage circuit +v in -v in -vo +vo 10 feed back 9 1 3 5 4 nc nc 37.0max 23.0max 4.5max 7.0max 2.54 9=22.86 VLA301-243R ? xxxx 13.0max 7.0max 17.0max ? 4.5+/-1.5 0.25 +0.2 -0.1 0.5 +0.15 -0.1 2.54
hybrid ic VLA301-243R isolated type dc-dc converter 2 maximum ratings (unless otherwise noted, ta=25c) symbol parameter conditions ratings unit v in input voltage between pins 1 and 3 160 v i o output current between pins 10 and 9 130 ma topr operating temperature no condensation (*1) -10 ~ +75 c tstg storage temperature no condensation -20 ~ +85 c viso input-output isolation voltage ac , 1min 2000 vrms (*1) please refer to de-rating characteristics. electrical characteristics (unless otherwise noted, v in =141v, ta=25 c) symbol parameter test conditions limits unit min. typ. max. v in input voltage recommended range 63 141 156 v v o output voltage i o = 0 ~ 130ma 22.8 24.0 25.2 v r eg-i input regulation i o =200ma, v in =63 ~ 156v ? ? 50 mv r eg-l load regulation i o = 0 ~ 130ma ? ? 100 mv v p-p ripple voltage i o =130ma ? ? 150 mv efficiency i o =130ma ? 73 ? % test circuit diagram it is used the electrolytic capacitors which has the low impedance for output capacitor. v in + 1 10 9 + 3 10 f 450v 220 f 50v load VLA301-243R 4 5 v o a i o
hybrid ic VLA301-243R isolated type dc-dc converter 3 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 conditi on 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 ce rtain 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 no tices or possible deterioration of their electrical characteristics, risk of solderability, and external damage may occur. 1) devices must be stored where fluctuation of te mperature 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 unde r severe conditions, be sure to check that the exterior is free from flaw and other damages. to prevent any electrical damages, use hics wi thin 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.
hybrid ic VLA301-243R isolated type dc-dc converter 4 marketing division, marketing planning department 6-41 tsukuba, isahaya, nagasaki, 854-0065 japan dec. 2007 keep safety first in your circuit designs! - isahaya electronics corporation puts the maximum effo rt into 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 cust omers 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 thes e materials, including product data, diagrams and charts, represent information on produ cts 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 prod ucts are not designed or manufactured for us e 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 corporatio n is necessary to reprint or reproduce in whole or in part th ese materials. - if these products or technologies ar e subject to the japanese export control re strictions, 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 aut horized isahaya products distributor for further details on these materials or the products contained therein.
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