ACS711-Datasheet

FeaturesandBenefits▪Noexternalsenseresistorrequired;singlepackagesolution▪ReducedPowerLoss:▫0.6mΩinternalconductorresistanceonEXpackage▫1.2mΩinternalconductorresistanceonLCpackage▪Economicallow-andhigh-sidecurrentsensing▪OutputvoltageproportionaltoACorDCcurrents▪±12.5Aand±25AfullscalesensingrangesonLCpackage▪±15.5Aand±31AfullscalesensingrangesonEXpackage▪Overcurrent¯F¯¯A¯¯U¯¯L¯¯T¯tripsandlatchesat100%offull-scalecurrent▪Low-noiseanalogsignalpath▪100kHzbandwidth▪Smallfootprint,low-profileSOIC8andQFNpackages▪3.0to5.5V,singlesupplyoperation▪Integratedelectrostaticshieldforoutputstability▪Factory-trimmedforaccuracy▪Extremelystableoutputoffsetvoltage▪Zeromagnetichysteresis▪RatiometricoutputfromsupplyvoltageDescriptionTheAllegro®ACS711provideseconomicalandprecisesolutionsforACorDCcurrentsensingin100Vaudio,communicationssystems,andwhitegoods.Thedevicepackageallowsforeasyimplementationbythecustomer.Typicalapplicationsincludecircuitprotection,currentmonitoring,andmotorandinvertercontrol.ThedeviceconsistsofalinearHallsensorcircuitwithacopperconductionpathlocatednearthesurfaceofthedie.AppliedcurrentflowingthroughthiscopperconductionpathgeneratesamagneticfieldwhichissensedbytheintegratedHallICandconvertedintoaproportionalvoltage.DeviceaccuracyisoptimizedthroughthecloseproximityofthemagneticsignaltotheHalltransducer.TheoutputofthedevicehasapositiveslopeproportionaltothecurrentflowfromIP+toIP–(pins1and2,topins3and4).Theinternalresistanceofthisconductivepathis0.6mΩfortheEXpackage,and1.2mΩfortheLCpackage,providinganon-intrusivemeasurementinterfacethatsavespowerinapplicationsthatrequireenergyefficiency.TheACS711isoptimizedforlow-sidecurrentsensingapplications,althoughtheterminalsoftheconductivepathareelectricallyisolatedfromthesensorICleads,providingsufficientinternalcreepageandclearancedimensionsforalowACorDCworkingvoltageapplications.ThethicknessIP+IP+IP–IP–IPGNDACS711+3.3VVIOUTVCCCBYP0.1μFCLOADRPUFAULTACS711ACS711A-DSHallEffectLinearCurrentSensorwithOvercurrentFaultOutputfor100VIsolationApplicationsContinuedonthenextpage…ApproximateScale1:1Packages:TypicalApplication8-pinSOICNwithinternallyfusedpath(LCpackage)12-contactQFN3mm×3mm×0.75mm(EXpackage)Application1.TheACS711outputsananalogsignal,VIOUT,thatvarieslinearlywiththebi-directionalACorDCprimarycurrent,IP,withintherangespecified.The¯F¯¯A¯U¯¯L¯¯T¯pintripswhenIPreaches±100%ofitsfull-scalecurrent.HallEffectLinearCurrentSensorwithOvercurrentFaultOutputfor100VIsolationApplicationsACS7112AllegroMicroSystems,Inc.115NortheastCutoffWorcester,Massachusetts01615-0036U.S.A.1.508.853.5000;–0.1VOutputVoltageVIOUT7VReverseOutputVoltageVRIOUT–0.1VWorkingVoltageforBasicIsolationVWORKINGVoltageappliedbetweenpins1-4and5-8100VACpeakorVDC¯F¯¯A¯U¯¯L¯¯T¯PinVoltageVFAULT7VOvercurrentTransientToleranceIPOC1pulse,100ms100ANominalOperatingAmbientTemperatureTARangeE–40to85ºCRangeK–40to125ºCMaximumJunctionTemperatureTJ(max)165ºCStorageTemperatureTstg–65to170ºCSelectionGuidePartNumberPackagePacking1TA(°C)OptimizedAccuracyRange,IP(A)Sensitivity2,Sens(Typ)(mV/A)ACS711ELCTR-12AB-T8-pinSOICN3000pieces/reel–40to85±12.5110ACS711ELCTR-25AB-T8-pinSOICN3000pieces/reel–40to85±2555ACS711KLCTR-12AB-T8-pinSOICN3000pieces/reel–40to125±12.5110ACS711KLCTR-25AB-T8-pinSOICN3000pieces/reel–40to125±2555ACS711EEXLT-15AB-T312-contactQFNwithfusedcurrentloop1500pieces/reel–40to85±15.590ACS711EEXLT-31AB-T312-contactQFNwithfusedcurrentloop1500pieces/reel–40to85±3145ACS711KEXLT-15AB-T312-contactQFNwithfusedcurrentloop1500pieces/reel–40to125±15.590ACS711KEXLT-31AB-T312-contactQFNwithfusedcurrentloop1500pieces/reel–40to125±31451ContactAllegroforadditionalpackingoptions.2SensitivitymeasuredwithVCC=3.3V.3QFNpackagenotqualifiedforautomotiveapplications.ofthecopperconductorallowssurvivalofthedeviceatupto5×overcurrentconditions.TheACS711isprovidedinsmall,surfacemountpackages:SOIC8andQFN12.Theleadframeisplatedwith100%mattetin,whichiscompatiblewithstandardlead(Pb)freeprintedcircuitboardassemblyprocesses.Internally,thedeviceisPb-free,exceptforflip-chiphigh-temperaturePb-basedsolderballs,currentlyexemptfromRoHS.Thedeviceisfullycalibratedpriortoshipmentfromthefactory.Description(continued)HallEffectLinearCurrentSensorwithOvercurrentFaultOutputfor100VIsolationApplicationsACS7113AllegroMicroSystems,Inc.115NortheastCutoffWorcester,Massachusetts01615-0036U.S.A.1.508.853.5000;–IP–VCCVIOUTFAULTGND12348765109871234561211VCCVIOUTGNDFAULTNCNCNCNCIP+IP+IP–IP–TerminalListTableNameNumberDescriptionEXLCGND55Signalgroundterminal¯F¯¯A¯U¯¯L¯¯T¯66Overcurrentfault;activelowIP–3and43and4Terminalsforcurrentbeingsensed;fusedinternallyIP+1and21and2Terminalsforcurren