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| (R) P r o d uPA92o v a t i o n F r o m ct Inn PA92 PA92 DESCRIPTION High Voltage Power Operational Amplifiers FEATURES HIGHVOLTAGE--400V(200V) LOWQUIESCENTCURRENT--10mA HIGHOUTPUTCURRENT--4A PROGRAMMABLECURRENTLIMIT The PA92 is a high voltage, low quiescent current MOSFEToperationalamplifierdesignedasalowcost solutionfordrivingcontinuousoutputcurrentsupto4A andpulsecurrentsupto7A.Thesafeoperatingarea (SOA) has no second breakdown limitations and can beobservedforalltypeloadsbychoosinganappropriatecurrentlimitingresistor.TheMOSFEToutputstage isbiasedABforlinearoperation.Externalcompensationprovidesflexibilityinchoosingbandwidthandslew ratefortheapplication.ApexPrecisionPower'sPower SIPpackageusesaminimumofboardspaceallowing forhighdensitycircuitboards.ThePowerSIPpackage iselectricallyisolated. APPLICATIONS PIEZOELECTRICPOSITIONING HIGHVOLTAGEINSTRUMENTATION ELECTROSTATICTRANSDUCERS PROGRAMMABLEPOWERSUPPLIESUP TO390V 12 11 +VS EQUIVALENT SCHEMATIC R1 R2 C1 R3 Q1 Q6 Q5 Q14A 1 -IN R5 R8 2 +IN Q15 R11 Q2 5 CC2 Q3 R4 Q4 ILIM 9 4 CC1 Q14B R6 R9 Q8 Q11 R7 10 6 OUT Q12 3 IQ Q16 Q13 R10 Q17 -VS 7 8 R12 EXTERNAL CONNECTIONS 1 2 3 Rc -IN +IN 4 5 Cc RCL 6 7 8 9 10 11 12 PATENTED * IQ TO LOAD AND FEEDBACK -Vs +Vs * (See text.) * Bypassing required. Formedleadsavailable SeepackagestyleEE 12-pin SIP PACKAGE STYLE DP PA92U www.cirrus.com Copyright (c) Cirrus Logic, Inc. 2010 (All Rights Reserved) MAR 2010 1 APEX - PA92UREVL PA92 (R) Product Innovation From CHARACTERISTICS AND SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Parameter SUPPLYVOLTAGE,+VSto-VS OUTPUTCURRENT,source, sink, peak,withinSOA POWERDISSIPATION,continuous @ TC = 25C INPUTVOLTAGE,differential INPUTVOLTAGE,commonmode TEMPERATURE,pinsolder,10smax. TEMPERATURE,junction(Note2) TEMPERATURERANGE,storage OPERATINGTEMPERATURERANGE,case -40 -25 -20 -VS Symbol Min Max 400 7 80 20 VS 260 150 85 85 Units V A W V V C C C C CAUTION ThePA92isconstructedfromMOSFETtransistors.ESDhandlingproceduresmustbeobserved. Theexposedsubstratecontainsberyllia(BeO).Donotcrush,machine,orsubjecttotemperatures inexcessof850Ctoavoidgeneratingtoxicfumes. Parameter Test Conditions Min Typ 2 Fulltemperaturerange 15 10 75 200 4 50 10 VS15 VCM=90V 100KHzbandwidth, RS=1K,CC=10pF RL=2K,CC=10pF RL=2K,CC=10pF RL=2K,CC=10pF Fulltemperaturerange IO=4A CC=10pF Fulltemperaturerange 1 VS12 4 50 94 80 98 1 11 SPECIFICATIONS Max 10 50 25 2000 500 Units mV V/C V/V V/kh pA pA/V pA pF V dB VRMS INPUT OFFSETVOLTAGE,initial OFFSETVOLTAGEvs.temperature OFFSETVOLTAGEvs.supply OFFSETVOLTAGEvs.time BIASCURRENT,initial BIASCURRENTvs.supply OFFSETCURRENT,initial INPUTIMPEDANCE,DC INPUTCAPACITANCE COMMONMODEVOLTAGERANGE (Note3) COMMONMODEREJECTION,DC NOISE GAIN OPENLOOP@15Hz GAINBANDWIDTHPRODUCT@1MHz POWERBANDWIDTH PHASEMARGIN OUTPUT VOLTAGESWING(Note3) CURRENT,continuous SLEWRATE,AV=100 CAPACITIVELOAD,AV=+1 2 VS10 V A V/S nF PA92U 111 18 30 60 dB MHz kHz 4 (R) Product Innovation From PA92 Test Conditions Min Typ 1 10 50 150 10 200 14 1 1.5 30 -25 +85 Parameter SETTLINGTIMEto0.1% RESISTANCE,noload POWER SUPPLY VOLTAGE(Note5) CURRENT,quiescent THERMAL RESISTANCE,AC,junctiontocase (Note4) RESISTANCE,DC,junctiontocase RESISTANCE,junctiontoair TEMPERATURERANGE,case Max Units S V mA C/W C/W C/W C CC=10pF,2Vstep Fulltemprange,F>60Hz Fulltemprange,F<60Hz Fulltemprange Meetsfullrangespecifications NOTES: 1. (AllMin/MaxcharacteristicsandspecificationsareguaranteedovertheSpecifiedOperatingConditions.Typicalperformancecharacteristicsandspecificationsarederivedfrommeasurementstaken attypicalsupplyvoltagesandTC=25C). 2. Longtermoperationatthemaximumjunctiontemperaturewillresultinreducedproductlife.Derate powerdissipationtoachievehighMTTF. 3. +VSand-VSdenotethepositiveandnegativepowersupplyrailrespectively. 4. Ratingappliesiftheoutputcurrentalternatesbetweenbothoutputtransistorsataratefasterthan 60Hz. 5. Deratemaxsupplyrating0.625V/Cbelow25Ccase.Noderatingneededabove25Ccase. TYPICAL PERFORMANCE GRAPHS POWER DERATING INTERNAL POWER DISSIPATION, P(W) PHASE RESPONSE NORMALIZED QUIESCENT CURRENT, IQ (X) NORMALIZED QUIESCENT CURRENT 1.6 80 90 60 PHASE, () 135 1.4 40 180 CC = 150pF 225 CC = 100pF CC = 47pF CC = 10pF 1.2 20 0 0 25 50 75 100 125 CASE TEMPERATURE, TC (C) 270 100k 1M 10M FREQUENCY F (Hz) 1.0 25 50 100 125 75 CASE TEMPERATURE, TC (C) OPEN LOOP GAIN, A (dB) 40 30 20 10 0 -10 100K 8.0 OUTPUT VOLTAGE, VO(VP-P) CC = 150pF CC = 100pF CC = 47pF CC = 10pF VOLTAGE DROP FROM SUPPLY, VS - VO (V) 50 SMALL SIGNAL RESPONSE OUTPUT VOLTAGE SWING 8.5 400 POWER RESPONSE 100 CC = 10pF CC = 47pF CC = 100pF CC = 150pF 7.5 7.0 1M 10M FREQUENCY, F (Hz) 6.5 0 3 2 1 OUTPUT CURRENT, IO (A) 4 10 1K 10K 100K FREQUENCY, F (Hz) 1M SLEW RATE 60 40 PA92U 30 (V/S) , (%) HARMONIC DISTORTION PO = 1W PO = 20W PO = 62W GE, V (nVHz) INPUT NOISE VOLTAGE 20 15 10 .1 3 20 OPEN LOOP GAIN, A 30 20 10 0 CC = 10pF VOLTAGE DROP FROM SUPPLY OUTPUT VOLTAGE, VO 100 CC = 10pF CC = 47pF CC = 100pF CC = 150pF 7.5 PA92 -10 100K 1M 10M FREQUENCY, F (Hz) 7.0 (R) Product Innovation From 6.5 0 3 2 1 OUTPUT CURRENT, IO (A) 4 10 1K 10K 100K FREQUENCY, F (Hz) 1M SLEW RATE 60 40 30 SLEW RATE, (V/S) DISTORTION, (%) HARMONIC DISTORTION PO = 1W PO = 20W PO = 62W INPUT NOISE VOLTAGE, V (nVHz) INPUT NOISE VOLTAGE 20 15 10 7 5 .1 20 10 8 6 4 3 2 1 30 60 100 200 300 10 EXT. COMPENSATION CAPACITOR, CC (pF) .01 3 2 10 .001 100 1K FREQUENCY, F (Hz) 10K 100 1K 10K FREQUENCY, F (Hz) 100K CURRENT LIMIT 4 CURRENT LIMIT, ILIM (A) 3 PHASE COMPENSATION GAIN CC* RC 1 150pF 100 2 100pF 100 3 47pF 0 12 10pF 0 *CCNevertobe<10pF.CCtoberatedforthefullsupply voltage+Vto-Vs.UseceramicNPO(COG)type. 0.2 0.4 0.6 0.8 1.0 1.2 RESISTOR VALUE, RCL () 2 1 0 0.0 GENERAL PleasereadApplicationNote1"GeneralOperatingConsiderations"whichcoversstability,supplies,heatsinking, mounting,currentlimit,SOAinterpretation,andspecificationinterpretation.Visitwww.cirrus.comfordesigntools thathelpautomatetaskssuchascalculationsforstability,internalpowerdissipation,currentlimit;heatsinkselection;ApexPrecisionPower'scompleteApplicationNoteslibrary;TechnicalSeminarWorkbook;andEvaluationKits. CURRENT LIMIT OUTPUT CURRENT FROM +VS OR -VS, (A) Forproperoperation,thecurrentlimitresistor(RCL)must be connected as shown in the external connection diagram.Foroptimumreliabilitytheresistorvalueshouldbe set as high as possible. The value is calculated as follows;withthemaximumpracticalvalueof16ohms. .65 RCL= ILIM 8 6 4 2 SOA DC, TC = 25C 200mS 10 SAFE OPERATING AREA (SOA) 1 .8 .6 .4 .3 .2 .1 .08 .06 .04 10 0m T S C = TheMOSFEToutputstageofthispoweroperationalamplifierhastwodistinctlimitations: 1. ThecurrenthandlingcapabilityoftheMOSFETgeometryandthewirebonds. 2. ThejunctiontemperatureoftheoutputMOSFETs. NOTE: The output stage is protected against transient flyback. However, for protection against sustained, high energy flyback, external fast-recovery diodes should be used. 4 T 85 C = C 12 5C 20 30 40 60 80 100 200 300 500 SUPPLY TO OUTPUT DIFFERENTIAL, VS -VO (V) PA92U (R) Product Innovation From PA92 SAFE OPERATING CURVES INPUT PROTECTION Thesafeoperatingareacurvesdefinethemaximumadditionalinternalpowerdissipationtheamplifiercantolerate whenitproducesthenecessaryoutputtodriveanexternalload. +VS Z1 1 Q1 Q2 +IN Q3 PA90 Q4 2 7, 8 11, 12 6 Although the PA92 can withstand differential voltages up to 20V, additionalexternalprotectionisrecommended.Lowleakage,lowcapacitanceJFETsconnectedasdiodesarerecommended(e.g.2N4416,Q1Q4inFigure2).Thedifferentialinputvoltagewillbeclampedto1.4V. Thisissufficientoverdrivetoproducemaximumpowerbandwidth. -IN POWER SUPPLY PROTECTION Unidirectional zener diode transient suppressors are recommended as protectiononthesupplypins.SeeFigure2.Thezenersclamptransients FIGURE 2. Z2 tovoltageswithinthepowersupplyratingandalsoclamppowersupply OVERVOLTAGE -VS reversals to ground. Whether the zeners are used or not, the system PROTECTION power supply should be evaluated for transient performance including power-onovershootandpower-offpolarityreversalsaswellaslineregulation. Conditionswhichcancauseopencircuitsorpolarityreversalsoneitherpowersupplyrailshouldbeavoidedorprotectedagainst.Reversalsoropensonthenegativesupplyrailisknowntoinduceinputstagefailure.Unidirectional transzorbspreventthis,anditisdesirablethattheybebothelectricallyandphysicallyasclosetotheamplifieras possible. STABILITY ThePA92isexternallycompensatedandperformancecanbetailoredtotheapplication.Usethegraphsofsmall signalresponseandpowerresponseasaguide.ThecompensationcapacitorCCmustberatedat500Vworking voltage.AnNPOcapacitorisrecommended.ThecompensationnetworkCCRCmustbemountedcloselytotheamplifierpins4and5toavoidspuriousoscillation. QUIESCENT CURRENT REDUCTION Whenpin3(IQ)isshortedtopin5(CC2)theABbiasingoftheoutputstageisdisabled.Thislowersquiescentpower butalsoraisesdistortionsincetheoutputstageisthenclassCbiased.Theoutputstagebiascurrentisnominally setat1mA.Pin3maybeleftopenifnotused. PA92U 5 PA92 (R) Product Innovation From CONTACTING CIRRUS LOGIC SUPPORT ForallApexPrecisionPowerproductquestionsandinquiries,calltollfree800-546-2739inNorthAmerica. Forinquiriesviaemail,pleasecontactapex.support@cirrus.com. InternationalcustomerscanalsorequestsupportbycontactingtheirlocalCirrusLogicSalesRepresentative. Tofindtheonenearesttoyou,gotowww.cirrus.com IMPORTANTNOTICE CirrusLogic,Inc.anditssubsidiaries("Cirrus")believethattheinformationcontainedinthisdocumentisaccurateandreliable.However,theinformationissubject tochangewithoutnoticeandisprovided"ASIS"withoutwarrantyofanykind(expressorimplied).Customersareadvisedtoobtainthelatestversionofrelevant informationtoverify,beforeplacingorders,thatinformationbeingreliedoniscurrentandcomplete.Allproductsaresoldsubjecttothetermsandconditionsofsale suppliedatthetimeoforderacknowledgment,includingthosepertainingtowarranty,indemnification,andlimitationofliability.NoresponsibilityisassumedbyCirrus fortheuseofthisinformation,includinguseofthisinformationasthebasisformanufactureorsaleofanyitems,orforinfringementofpatentsorotherrightsofthird parties.ThisdocumentisthepropertyofCirrusandbyfurnishingthisinformation,Cirrusgrantsnolicense,expressorimpliedunderanypatents,maskworkrights, copyrights,trademarks,tradesecretsorotherintellectualpropertyrights.CirrusownsthecopyrightsassociatedwiththeinformationcontainedhereinandgivesconsentforcopiestobemadeoftheinformationonlyforusewithinyourorganizationwithrespecttoCirrusintegratedcircuitsorotherproductsofCirrus.Thisconsent doesnotextendtoothercopyingsuchascopyingforgeneraldistribution,advertisingorpromotionalpurposes,orforcreatinganyworkforresale. CERTAINAPPLICATIONSUSINGSEMICONDUCTORPRODUCTSMAYINVOLVEPOTENTIALRISKSOFDEATH,PERSONALINJURY,ORSEVEREPROPERTYORENVIRONMENTALDAMAGE("CRITICALAPPLICATIONS").CIRRUSPRODUCTSARENOTDESIGNED,AUTHORIZEDORWARRANTEDTOBE SUITABLEFORUSEINPRODUCTSSURGICALLYIMPLANTEDINTOTHEBODY,AUTOMOTIVESAFETYORSECURITYDEVICES,LIFESUPPORTPRODUCTSOROTHERCRITICALAPPLICATIONS.INCLUSIONOFCIRRUSPRODUCTSINSUCHAPPLICATIONSISUNDERSTOODTOBEFULLYATTHECUSTOMER'SRISKANDCIRRUSDISCLAIMSANDMAKESNOWARRANTY,EXPRESS,STATUTORYORIMPLIED,INCLUDINGTHEIMPLIEDWARRANTIESOF MERCHANTABILITYANDFITNESSFORPARTICULARPURPOSE,WITHREGARDTOANYCIRRUSPRODUCTTHATISUSEDINSUCHAMANNER.IFTHE CUSTOMERORCUSTOMER'SCUSTOMERUSESORPERMITSTHEUSEOFCIRRUSPRODUCTSINCRITICALAPPLICATIONS,CUSTOMERAGREES, BYSUCHUSE,TOFULLYINDEMNIFYCIRRUS,ITSOFFICERS,DIRECTORS,EMPLOYEES,DISTRIBUTORSANDOTHERAGENTSFROMANYANDALL LIABILITY,INCLUDINGATTORNEYS'FEESANDCOSTS,THATMAYRESULTFROMORARISEINCONNECTIONWITHTHESEUSES. CirrusLogic,Cirrus,andtheCirrusLogiclogodesigns,ApexPrecisionPower,ApexandtheApexPrecisionPowerlogodesignsaretrademarksofCirrusLogic,Inc. Allotherbrandandproductnamesinthisdocumentmaybetrademarksorservicemarksoftheirrespectiveowners. 6 PA92U |
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