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  &eatures n  6)nputcontrolvoltage n  !outputloadcurrent n  6outputcompliancevoltage n  7outputloadpower n - 7 outputimpedance n 6dc)solation n ?accuracyunderallconditions n ?secfull scalestepresponse n x shieldedmetalpackage n /perateinparallelforhigherpower !pplications n 0ower supplytestandcharacterization n 3taticdynamicpower supplyburn in n 0ower resistorsubstitution n 2eal timeloadsimulation n #apacitordischargetesting 4he$4,!isanisolated6dc near ideal:in: /54 - 7 analogvoltage controlled currentsink)tgs !ouputloadcurrentisstraightforwardl yprogrammedbyapplyinga 6 input4hecontrolsignalcanbegeneratedbycircuitsassimp leasthewiperofatrimpotoras sophisticatedasprogrammablelogiccontrollers0,#gs oranal og outputcomputer)/boards$! boards 4he$4,!supportsanycombinationof) /54  !mpsand6 /54  6olts )tsthermallyeflcient metalpackage whenproperlyheatsunk candissipateoutputloadpowerup to7atts 4heeasy to use$4,!isanexcellentbuildingblockfor low cost fullymexible power supply !#$#or$#$# orpower component-/3&%4gs diodes etc te standburn inapplications )tisaccuratem!offseterror overallaccuracy fast ?secfull scalestepresponse andcapableofimpressiveresolution)fitiscontrolledwith a bit  6$!converter for example one,3"leastsignilcantbit ofthe$!corresponds toam!changeinthe$4,!gs outputloadcurrent 4he$4,!ispackagedinasmallxx therma llyeflcientmetalpackageincorporating analuminumbaseplatewiththrough holemountinginserts)ti spoweredbyasingle 6supply anddrawsamerem! 4he$4,!hasanoutputcompliancevoltageof 6ol ts3houldtheoutputloadvoltage dropbelowthe6requiredforproperbiasing aninternalmo nitoringcircuitactivatesthe$4,!gs output&aultline3ee$!4%,gs$4,! ,#forcompliancevoltag esaslowas6 4he$4,!andotherelectronicloads controllerboards andsoftwarefrom$!4%,are outstandingbuilding blockcomponentsforpower supplyburn in andtestsystems4heyare extremelyreliable cost effectivesolutionsthatenableyouto quicklyconlgureimpressivelyaccurate systems )../6!4)/. and %8 # %,, % . # % /-i?i? /{?`i? 6oltage #ontrolled !mp 7att %lectronic,oads $!4%, )nc-ansleld -!53! s4el     &ax  s%mailsales date lcoms)nternetwwwdatelcom &igure3impliled3chematic *i?????>t not recommended for new designs
! ! $4, )/#onnections 0in&unction00in&unction0  6olt3upply#ontrol6olta ge)n  6olt2eturn ,oad &ault ,oad .o0in ,oad #ontrol6oltage)n  ,oa d .o0in #ontrol #om pliance 6oltage )mpedance#urrent 2esolution6oltage 0ower0ackage -odel6olts -inimum !mps m! y 6olts z 7atts #ase 0inout $4,!to 6 - 7      # 0 0erformance3pecilcationsand/rdering'uide ? -%#(!.)#!, 30%#)&)#!4)/.3 4%-0%2!452%$%2!4).' /utput0ower,oad7atts "aseplate4emperature?# 4hehorizontalaxisoftheabovechartreferencesthetemperatu reofthe$4,!gsaluminum baseplate4hedevicecancontinuallydissipateupto7att sifthebaseplateismaintained atorbelow a#!t a#ambienttemperature withnoheat sinkorsupplemenatalair mow the$4,!canreliablydissipateacontinuous7atts 6oltage2ange to6 $!4%, %lectronic,oad ! 3eries (igh2eliability 0!24.5-"%23425#452% ? 4ypicalat4 !  a#withnominal 6supplyvoltage unlessnoted ? ,istedresolutionm! isforatypicalapplicationinwhic hthe$4,!iscontrolledbyavoltage generatedbya bit$!converterwitha 6outputr ange/ne,3"leastsignilcantbit ofthe$! correspondsto offullscale!mps w hichequalsapproximatelym! ? &orproperoperation theunitgsoutputloadvoltagemustrema inwithinthisrange6oltagesgreaterthanthelisted maximumcandamagethedevice6oltageslessthanthemin imumprovideinsuflcientbiasfortheoutputstageandwill resultinunpredictableornooperation3ee/utput#ompl iance6oltageandthe&ault,inefordetails "aseplate4emperature?# /-i?i? 7!44 6/,4!'% #/.42/,,%$%,%#42/.)#,/!$ /utput /utput )nput $4,   ! #ontact$!4%,for(eat3inkinformation
/perating4em )nput #ontrol6oltage  6olts )mpedance - 7 minimum /utput 4ransfer&unction ) /54 !mps  x6 ). 6olts #urrent 2ange  !mps 2esolution x &3m! /ffset%rror y m! 'ain%rror  maximum !bsolute!ccuracy z  maximum 6oltage {  6olts 0ower |  7atts )solation6oltage !nalog)nputto,oad6dc mi nimum 60owerto)nputor,oad 6dc mi nimum !nypintocase6d c minimum )solation2esistance - 7 minimum &ault,ogic,evels ,ogic ?! 6olts minimum ,ogic m! 6olts maximum $ynamic0erformance /utput3lew2ate !?sec minimum /utput3ettling4ime } ?sec $ynamic,oading } m!to! k(z to! k(z 0ower2equirements 0ower3upply2ange  6cc 0in  6olts 6nominal 0ower3upply#urrent } m!typ m!max %nvironmental /perating4emperature ~ to a# 3torage4emperature to a# (umidity.on condensing to !ltitude!bove3ea,evel  feet 0hysical $imensions xxxxmm 3hielding 3ix sided #ase-aterial 4in platedsteelshellwith aluminumbaseplate 0in-aterial "rass soldercoated -ounting(oles 4hrough holespacers  clearance 7eight ouncesgrams 0ower3upply6oltage  6cc 0in to 6olts #ontrol6oltage)n 0in to 6olts /utput2everse 0olarity0rotection .oprotection /utput/vervoltage0rotection .oprotection /utput5ndervoltage0rotection 9es3ee&ault,ine #ase4emperature ?# 3torage4emperature nto ?# ,ead4emperature soldering sec ?# 4hesearestressratings%xposureofdevicestoanyofthese conditionsmayadverselyaffectlong term reliability0roperoperationunderconditionsotherthanthos elistedinthe0erformance&unctional 3pecilcations4ableisnotimplied !bsolute-aximum2atings ? ,istedresolutionm! isforatypicalapplicationinwhic hthe$4,!iscontrolledby avoltagegeneratedbya bit$!converterwitha 6 outputrange/ne,3"least signilcantbit ofthe$!correspondsto offullscale!mps which equalsapproximatelym! ? /ffseterrorisdelnedasthecurrentsunksourcedbythe$4, !gsoutput underany output voltageconditions whentheappliedcontrolvoltag eis6olts ? !ppliesoverallrangescombinationsofspeciledoutputcurren t loadvoltage outputpower operatingtemperatureand6 ##  ? &orproperoperation the$4,!gsoutputvoltagemustremain withintherangelisted 6oltagesgreaterthanthelistedmaximumcandamagethede vice6oltageslessthanthe listedminimumprovideinsuflcientbiasfortheoutputsta geandwillresultinunpredictableor nooperation3ee/utput#ompliance6oltageand&ault,in efordetails ? 4he$4,!canachieveitsmaximumoutputloadpoweronlywhen itsbaseplate temperatureisproperlymaintained3ee4emperature$erat ing } 3peciledforthefull scalestepfromm!to!mpssettling tom! oflnal value!minimalloadingofm!isrecommendedtoachiev ethefastestdynamicresponse ~ "aseplatetemperature3ee.oteand4emperature$erating 0erformance&unctional3pecilcations 4ypical 4 !  a#withnominal 6supplyvoltage unlessnoted 4%#(.)#!,./4%3 /verview 4he$4,!isananalogprogrammableto 6control curren tsink)ts outputloadcurrentrangeisto!mpsoveracompliancevo ltagerangeof to6oltsandanoutputloadpowerrangeofto7at ts4hedevicegs transferfunctionisasfollows )out!mps x6 ). 6olts %xamples#ontrol6 ). 6olt ) /54 !mps #ontrol6 ). 6olts ) /54 !mps )natypicalpower supplytestorburn inapplication theoutp utpinsofthe deviceundertest$54 areconnectedtothe$4,!gs ,oadpi nsand and ,oadpinsand outputs  /{ 7!44 6/,4!'% #/.42/,,%$%,%#42/.)#,/!$
$!4%,makesnorepresentationthattheuseofitsproductsint hecircuitsdescribedherein ortheuseofothertechnicalinf ormationcontainedherein willnotinfringeuponexistingorf uturepatentrights4hedescriptionscontainedhereindo notimplythegrantingoflicensestomake use orsellequipm entconstructedinaccordancetherewith3pecilcationsaresubj ecttochangewithoutnotice4he$!4%,logoisaregistered$! 4%, )nctrademark $!4%,5+ ,4$4adley %ngland4el  $!4%,3!2,-ontigny,e"retonneux &rance4el     $!4%,'mb(-nchen 'ermany4el   $!4%,++4okyo *apan4el   /saka4el   $!4%, )nc#abot"oulevard -ansleld -!  4el    &ax   )nternetwwwdatelcom%mailsales datelcom )../6!4)/. and %8 # %,, % . # % )3/ 2%')34%2%$ $3 xxx 4%#(.)#!,./4%3 /utput#ompliance6oltageandthe&ault,ine &orproperoperation the$4,!gsoutputloadvoltagemustalw aysbebetween and6olts4hedevicecannotbeusedtodirectlyload extremely lowvoltagesuchas6or6 powercomponentsortosimul ateatrue shortcircuit6olts 6oltagesgreaterthan6candamage thedevice 6oltages6willresultininsuflcientbiasingoftheoutpu tcurrentsourceand consequentlyunpredictableornooperation!ccordingly weha veinstalledan internaloutputload voltagemonitoringcircuit)ftheoutput loadvoltagedrops below6andthe$4,!gsoutputisatriskofbecomingdisab led the&ault lineactivates 4he&aultlineisanactive lowfunctionwithanopen collector outputinternal k 7 pull upresistorto 6 5ndernormalconditions itsoutput ishigh logic 5nderfaultconditions6out6 itsoutput dropstoalogic 4hereisnooutputload voltagemonitoringcircuitforvo ltagesgreaterthan 6 andoperationabove6candamagethedevice !noffsetsupplycanbeinsertedbetweenthe$4,!gs ,oado utputpins and andthepowerdeviceundertest$54 totranslatet he$4,!gs 6outputloadvoltagerange4heoffsetsupplymusthave adequatecurrent capabilitiesandbeconnectedwiththepolaritiesindicatedin &igurebelow 5ndernocircumstancesshouldthevoltageacrossthe$4,!gso utputbe allowedtoexperienceapolarityreversal )fa6!offsetsupplyisinsertedasshown therangeof$5 4voltageswill be to 6olts3uchaconlgurationcanbeusedfortru eshort circuit testing!mechanicalrelaycanbeusedtoshorttheoutputso fthe$54while theoffsetsupplyensuresthe$4,!alwaysseesatleast6ol tsacrossits outputs 4hermal#onsiderations 4he$4,!canreliablyhandle7loadsifitsaluminumbase plate temperatureismaintainedatorbelow a#7ithnoheatsink ingor auxiliarycooling thedevicecanonlyhandleloadsupto7a tts0lease refertothe4emperature$erating#urveforadditionalinformat ion$atelgs %lectronic,oad!pplications%ngineerscanassistyouindevelo pingheat sinksolutionsforyourhigher power$4,!applications0lea secontact usfordetailsandconcerningour$4, (3$heatsink &igure!noffset3upply%nables 4rue3hort #ircuit4esting  #onstant2esistance!pplication 4he$4,!operatesasaconstantcurrentelectronicloadinit stypical conlguration!constantresistancemodeofoperationcanbe achieved asfollows 4he$4,!hasahighimpedanceisolatedanaloginput thatall owsthe analoginputstobeconnecteddirectlyacrosstheload4he$4, !sinks ampsfora6fullscaleinputor)x6 ). )fyoumake6 ). 6 ,/!$ the voltageacrosstheload then26 ,/!$ )6 ,/!$ x6 ,/!$ /hms #onsequently theloadlookslikea/hmresistor &urthermore ifyoumake6 ). kx6 ,/!$ byconnectingapotentiometeror resistivedivideracrosstheload then26 ,/!$ xkx6 ,/!$ kso adjustingthepotentiometerwillgiveyouanadjustablepowerr esistoregat + then2/hm kthen2/hms etc4heonlyl imitation thatyoumustobserveisthemaximumloadvoltage6 and watt powerdissipation!multiplyingdigital to analogconverter o radigital potentiometercouldbeutilizedtomakeaprogrammableresistan ce /-i?i? 7!44 6/,4!'% #/.42/,,%$%,%#42/.)#,/!$


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