DRV5057Z4www.57.com

DRV5057LinearHallEffectSensorWithPWMOutput1FeaturesPWM-outputlinearHalleffectmagneticsensorOperatesfrom3.
3-Vand5-Vpowersupplies2-kHzclockoutputwith50%quiescentdutycycleMagneticsensitivityoptions(atVCC=5V):–A1/Z1:2%D/mT,±21-mTrange–A2/Z2:1%D/mT,±42-mTrange–A3/Z3:0.
5%D/mT,±84-mTrange–A4/Z4:0.
25%D/mT,±168-mTrangeOpen-drainoutputwith20-mAsinkcapabilityCompensationformagnettemperaturedriftforA1/A2/A3/A4VersionsandNoneforZ1/Z2/Z3/Z4VersionsIndustrystandardpackage:–Surface-mountSOT-23–Through-holeTO-922ApplicationsPrecisepositionsensingIndustrialautomationandroboticsHomeappliancesGamepads,pedals,keyboards,triggersHeightleveling,tiltandweightmeasurementFluidflowratemeasurementMedicaldevicesAbsoluteangleencodingCurrentsensing3DescriptionTheDRV5057isalinearHalleffectsensorthatrespondsproportionallytomagneticfluxdensity.
Thedevicecanbeusedforaccuratepositionsensinginawiderangeofapplications.
Thedeviceoperatesfrom3.
3-Vor5-Vpowersupplies.
Whennomagneticfieldispresent,theoutputproducesaclockwitha50%dutycycle.
Theoutputdutycyclechangeslinearlywiththeappliedmagneticfluxdensity,andfoursensitivityoptionsmaximizetheoutputdynamicrangebasedontherequiredsensingrange.
Northandsouthmagneticpolesproduceuniqueoutputs.
Thetypicalpulse-widthmodulation(PWM)carrierfrequencyis2kHz.
Magneticfluxperpendiculartothetopofthepackageissensed,andthetwopackageoptionsprovidedifferentsensingdirections.
BecausethePWMsignalisbasedonedge-to-edgetiming,signalintegrityismaintainedinthepresenceofvoltagenoiseorgroundpotentialmismatch.
Thissignalissuitablefordistancetransmissioninnoisyenvironments,andthealways-presentclockallowsthesystemcontrollertoconfirmtherearegoodinterconnects.
Additionally,thedevicefeaturesmagnettemperaturecompensationtocounteracthowmagnetsdriftforlinearperformanceacrossawide–40°Cto+125°Ctemperaturerange.
Deviceoptionsfornotemperaturecompensationofmagnetdriftarealsoavailable.
DeviceInformationPARTNUMBERPACKAGE(1)BODYSIZE(NOM)DRV5057SOT-23(3)2.
92mm*1.
30mmTO-92(3)4.
00mm*3.
15mm(1)Forallavailablepackages,seethepackageoptionaddendumattheendofthedatasheet.
TypicalSchematicMagneticResponsewww.
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comDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020Copyright2020TexasInstrumentsIncorporatedSubmitDocumentFeedback1ProductFolderLinks:DRV5057DRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,intellectualpropertymattersandotherimportantdisclaimers.
PRODUCTIONDATA.
TableofContents1Features.
12Applications.
13Description.
14RevisionHistory.
25PinConfigurationandFunctions.
3PinFunctions.
36Specifications.
36.
1AbsoluteMaximumRatings.
36.
2ESDRatings.
46.
3RecommendedOperatingConditions.
46.
4ThermalInformation.
46.
5ElectricalCharacteristics.
46.
6MagneticCharacteristics.
46.
7TypicalCharacteristics.
67DetailedDescription.
107.
1Overview.
107.
2FunctionalBlockDiagram.
107.
3FeatureDescription.
107.
4DeviceFunctionalModes.
138ApplicationandImplementation.
148.
1ApplicationInformation.
148.
2TypicalApplications.
158.
3WhattoDoandWhatNottoDo.
229PowerSupplyRecommendations.
2310Layout.
2310.
1LayoutGuidelines.
2310.
2LayoutExamples2311DeviceandDocumentationSupport.
2411.
1DocumentationSupport.
2411.
2ReceivingNotificationofDocumentationUpdates.
.
2411.
3SupportResources.
2411.
4Trademarks.
2411.
5ElectrostaticDischargeCaution.
2411.
6Glossary.
2412Mechanical,Packaging,andOrderableInformation.
244RevisionHistoryChangesfromRevision*(November2018)toRevisionA(August2020)PageUpdatedthenumberingformatfortables,figures,andcross-referencesthroughoutthedocument.
1AddedZeroTCsensitivityoptions1AddedZeroTCinformationtoSection6.
64FixedlabelsforsomeoftheplotsforgraphsforDRV5057A1/A2/A3/A4devicesandaddedZeroTCcharacteristicsplotsforDRV5057Z1/Z2/Z3/Z4devicesinSection6.
76UpdatedSection7.
3.
4sectionforZeroTCoptions.
12DRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
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com2SubmitDocumentFeedbackCopyright2020TexasInstrumentsIncorporatedProductFolderLinks:DRV50575PinConfigurationandFunctionsFigure5-1.
DBZPackage3-PinSOT-23TopViewFigure5-2.
LPGPackage3-PinTO-92TopViewPinFunctionsPINTYPEDESCRIPTIONNAMESOT-23TO-92GND32GroundGroundreferenceOUT23OutputAnalogoutputVCC11PowerPowersupply.
Connectthispintoaceramiccapacitortogroundwithavalueofatleast0.
01F.
6Specifications6.
1AbsoluteMaximumRatingsoveroperatingfree-airtemperaturerange(unlessotherwisenoted)(1)MINMAXUNITVCCPowersupplyvoltageVCC–0.
37VOutputvoltageOUT–0.
36VOutputcurrentOUT30mABMagneticfluxdensityUnlimitedTTJOperatingjunctiontemperature–40150°CTstgStoragetemperature–65150°C(1)StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.
Thesearestressratingsonly,whichdonotimplyfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommendedOperatingConditions.
Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
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2ESDRatingsVALUEUNITV(ESD)ElectrostaticdischargeHuman-bodymodel(HBM),perANSI/ESDA/JEDECJS-001(1)±3000VCharged-devicemodel(CDM),perJEDECspecificationJESD22-C101(2)±750(1)JEDECdocumentJEP155statesthat500-VHBMallowssafemanufacturingwithastandardESDcontrolprocess.
(2)JEDECdocumentJEP157statesthat250-VCDMallowssafemanufacturingwithastandardESDcontrolprocess.
6.
3RecommendedOperatingConditionsoveroperatingfree-airtemperaturerange(unlessotherwisenoted)MINMAXUNITVCCPower-supplyvoltage(1)33.
63V4.
55.
5VOOutputpullupvoltage05.
5VIOOutputcontinuouscurrent020mATAOperatingambienttemperature(2)–40125°C(1)TherearetwoisolatedoperatingVCCranges.
FormoreinformationseetheSection7.
3.
3section.
(2)Powerdissipationandthermallimitsmustbeobserved.
6.
4ThermalInformationTHERMALMETRIC(1)DRV5057UNITSOT-23(DBZ)TO-92(LPG)3PINS3PINSRθJAJunction-to-ambientthermalresistance170121°C/WRθJC(top)Junction-to-case(top)thermalresistance6667°C/WRθJBJunction-to-boardthermalresistance4997°C/WΨJTJunction-to-topcharacterizationparameter1.
77.
6°C/WΨJBJunction-to-boardcharacterizationparameter4897°C/W(1)Formoreinformationabouttraditionalandnewthermalmetrics,seetheSemiconductorandICPackageThermalMetricsapplicationreport.
6.
5ElectricalCharacteristicsforVCC=3Vto3.
63Vand4.
5Vto5.
5V,overoperatingfree-airtemperaturerange(unlessotherwisenoted)PARAMETERTESTCONDITIONSMINTYPMAXUNITICCOperatingsupplycurrent610mAtONPower-ontime(seeFigure7-4)(2)B(1)=0mT,noloadonOUT0.
60.
9msfPWMPWMcarrierfrequency1.
82.
02.
2kHzDJDutycyclepeak-to-peakjitterFromchangeinBtochangeinOUT±0.
1%D(1)IOZHigh-impedanceoutputleakagecurrentVCC=5V100nAVOLLow-leveloutputvoltageIOUT=20mA0.
150.
4V(1)Thisunitisapercentageofdutycycle.
(2)tONisthetimefromwhenVCCgoesabove3Vuntilthefirstrisingedgeofthefirstvalidpulse.
6.
6MagneticCharacteristicsforVCC=3Vto3.
63Vand4.
5Vto5.
5V,overoperatingfree-airtemperaturerange(unlessotherwisenoted)PARAMETERTESTCONDITIONSMINTYPMAXUNITDLLineardutycyclerange892%D(1)DRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
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63Vand4.
5Vto5.
5V,overoperatingfree-airtemperaturerange(unlessotherwisenoted)PARAMETERTESTCONDITIONSMINTYPMAXUNITDCLClamped-lowdutycycleB(1)250mT93.
39494.
7DQQuiescentdutycycle(2)B=0mT,TA=25°C,VCC=3.
3Vor5V465054%DVQΔLQuiescentdutycyclelifetimedriftHigh-temperatureoperatingstressfor1000hours<0.
5%SSensitivity(5)VCC=5V,TA=25°CDRV5057A1/Z11.
8822.
12%D/mTDRV5057A2/Z20.
9411.
06DRV5057A3/Z30.
470.
50.
53DRV5057A4/Z40.
230.
250.
27VCC=3.
3V,TA=25°CDRV5057A1/Z11.
131.
21.
27DRV5057A2/Z20.
560.
60.
64DRV5057A3/Z30.
280.
30.
32DRV5057A4/Z40.
1380.
150.
162BLLinearmagneticfluxdensitysensingrange(2)(3)(5)VCC=5V,TA=25°CDRV5057A1/Z1±21mTDRV5057A2/Z2±42DRV5057A3/Z3±84DRV5057A4/Z4±168STCSensitivitytemperaturecompensationformagnets(4)DRV5057A1,DRV5057A2,DRV5057A3,DRV5057A40.
12%/°CSTCzSensitivitytemperaturecompensationformagnets(4)(5)DRV5057Z1,DRV5057Z2,DRV5057Z3,DRV5057Z40%/°CSLESensitivitylinearityerror(2)OutputdutycycleiswithinDL±1%RSESensitivityerroroveroperatingVCCrangeOutputdutycycleiswithinDL±1%SΔLQuiescenterroroveroperatingVCCrange<0.
5%(1)Bistheappliedmagneticfluxdensity.
(2)SeetheSection7.
3.
2section.
(3)BLdescribestheminimumlinearsensingrangeat25°CtakingintoaccountthemaximumVQandsensitivitytolerances.
(4)STCdescribestheratethedeviceincreasesSensitivitywithtemperature.
Formoreinformation,seetheSection7.
3.
4sectionandFigure6-7toFigure6-20.
(5)ProductPreviewdataonlyforDRV5055Z1-DRV5055Z4deviceoptions.
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7TypicalCharacteristicsforTA=25°C(unlessotherwisenoted)VCC=5.
0VFigure6-1.
SensitivityvsSupplyVoltageVCC=5.
0VFigure6-2.
SensitivityvsSupplyVoltageVCC=3.
3VFigure6-3.
SensitivityvsSupplyVoltageVCC=3.
3VFigure6-4.
SensitivityvsSupplyVoltageDRV5057A1/A2/A3/A4Figure6-5.
SupplyCurrentvsTemperatureDRV5057Z1/Z2/Z3/Z4Figure6-6.
SupplyCurrentvsTemperatureDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
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0VFigure6-7.
SensitivityvsTemperatureDRV5057A1,VCC=3.
3VFigure6-8.
SensitivityvsTemperatureDRV5057Z1,VCC=5.
0VFigure6-9.
SensitivityvsTemperatureDRV5057Z1,VCC=3.
3VFigure6-10.
SensitivityvsTemperatureDRV5057A2,VCC=5.
0VFigure6-11.
SensitivityvsTemperatureDRV5057A2,VCC=3.
3VFigure6-12.
SensitivityvsTemperaturewww.
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0VFigure6-13.
SensitivityvsTemperatureDRV5057Z2,VCC=3.
3VFigure6-14.
SensitivityvsTemperatureDRV5057A3,VCC=5.
0VFigure6-15.
SensitivityvsTemperatureDRV5057A3,VCC=3.
3VFigure6-16.
SensitivityvsTemperatureDRV5057Z3,VCC=5.
0VFigure6-17.
SensitivityvsTemperatureDRV5057Z3,VCC=3.
3VFigure6-18.
SensitivityvsTemperatureDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
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0VFigure6-19.
SensitivityvsTemperatureDRV5057A4,VCC=3.
3VFigure6-20.
SensitivityvsTemperatureDRV5057Z4,VCC=5.
0VFigure6-21.
SensitivityvsTemperatureDRV5057Z4,VCC=3.
3VFigure6-22.
SensitivityvsTemperaturewww.
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1OverviewTheDRV5057isa3-pinpulse-widthmodulation(PWM)outputHalleffectsensorwithfullyintegratedsignalconditioning,temperaturecompensationcircuits,mechanicalstresscancellation,andamplifiers.
Thedeviceoperatesfrom3.
3-Vand5-V(±10%)powersupplies,measuresmagneticfluxdensity,andoutputsapulse-widthmodulated,2-kHzdigitalsignal.
7.
2FunctionalBlockDiagram7.
3FeatureDescription7.
3.
1MagneticFluxDirectionAsshowninFigure7-1,theDRV5057issensitivetothemagneticfieldcomponentthatisperpendiculartothetopofthepackage.
Figure7-1.
DirectionofSensitivityDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
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com10SubmitDocumentFeedbackCopyright2020TexasInstrumentsIncorporatedProductFolderLinks:DRV5057Magneticfluxthattravelsfromthebottomtothetopofthepackageisconsideredpositiveinthisdocument.
Thisconditionexistswhenasouthmagneticpoleisnearthetop(marked-side)ofthepackage.
Magneticfluxthattravelsfromthetoptothebottomofthepackageresultsinnegativemilliteslavalues.
Figure7-2showsfluxdirection.
Figure7-2.
FluxDirectionforPositiveB7.
3.
2SensitivityLinearityThedeviceproducesapulse-widthmodulateddigitalsignaloutput.
AsshowninFigure7-3,theduty-cycleofthePWMoutputsignalisproportionaltothemagneticfielddetectedbytheHallelementofthedevice.
Ifthereisnomagneticfieldpresent,thedutycycleis50%.
TheDRV5057candetectbothmagneticnorthandsouthpoles.
Theoutputdutycyclemaintainsalinearrelationshipwiththeinputmagneticfieldfrom8%to92%.
Figure7-3.
MagneticResponse7.
3.
3OperatingVCCRangesTheDRV5057hastworecommendedoperatingVCCranges:3Vto3.
63Vand4.
5Vto5.
5V.
WhenVCCisinthemiddleregionbetween3.
63Vto4.
5V,thedevicecontinuestofunctionbutsensitivityislessknownbecausethereisacrossoverthresholdnear4Vthatadjustsdevicecharacteristics.
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3.
4SensitivityTemperatureCompensationforMagnetsMagnetsgenerallyproduceweakerfieldsastemperatureincreases.
TheDRV5057A1-DRV5057A4deviceoptionshaveatemperaturecompensationfeaturethatisdesignedtodirectlycompensatetheaveragedriftofneodymium(NdFeB)magnetsandpartiallycompensateferritemagnets.
Theresidualinduction(Br)ofamagnettypicallyreducesby0.
12%/°CforNdFeB,and0.
20%/°Cforferrite.
Whentheoperatingtemperatureofasystemisreduced,temperaturedrifterrorsarealsoreduced.
TheDRV5057Z1-DRV5057Z4devicesoptionsdonotcompensateforthedriftexternalmagnets7.
3.
5Power-OnTimeAftertheVCCvoltageisapplied,theDRV5057requiresashortinitializationtimebeforetheoutputisset.
TheparametertONdescribesthetimefromwhenVCCcrosses3VuntilOUTiswithin5%ofVQ,with0mTappliedandnoloadattachedtoOUT.
Figure7-4showsthistimingdiagram.
Figure7-4.
tONDefinitionDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
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3.
6HallElementLocationFigure7-5showsthelocationofthesensingelementinsideeachpackageoption.
Figure7-5.
HallElementLocation7.
4DeviceFunctionalModesTheDRV5057hasonemodeofoperationthatapplieswhentheRecommendedOperatingConditionsaremet.
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TI'scustomersareresponsiblefordeterminingsuitabilityofcomponentsfortheirpurposes.
Customersshouldvalidateandtesttheirdesignimplementationtoconfirmsystemfunctionality.
8.
1ApplicationInformation8.
1.
1SelectingtheSensitivityOptionSelectthehighestDRV5057sensitivityoptionthatcanmeasuretherequiredrangeofmagneticfluxdensitysothattheoutputvoltageswingismaximized.
Larger-sizedmagnetsandfarthersensingdistancescangenerallyenablebetterpositionalaccuracythanverysmallmagnetsatclosedistances,becausemagneticfluxdensityincreasesexponentiallywiththeproximitytoamagnet.
TIcreatedanonlinetooltohelpwithsimplemagnetcalculationsontheDRV5057productfolder.
8.
1.
2DecodingaPWMAPWMoutputhelpssystemdesignersdrivesignalsforlongdistancesinnoisyenvironments,withtheabilitytoretrievethesignalaccurately.
Adecoderisemployedattheloadtoretrievetheanalogmagneticsignal.
Twodifferentmethodsofdecodingarediscussedinthissection.
8.
1.
2.
1DecodingaPWM(Digital)8.
1.
2.
1.
1CaptureandCompareTimerInterruptManymicrocontrollershaveacaptureandcomparetimermodethatcansimplifythePWMdecodingprocess.
Usethetimerincaptureandcomparemodewithaninterruptthattriggersonboththerisingandfallingedgesofthesignaltoobtainboththerelativehigh(on)andlow(off)timeofthePWM.
MakesurethatthetimerperiodissignificantlyfasterthantheperiodofthePWM,basedonthedesiredresolution.
Calculatethepercentdutycycle(%D)ofthePWMwithEquation1byusingtherelativeonandofftimeofthesignal.
(1)8.
1.
2.
1.
2OversamplingandCountingWithaTimerInterruptIfacaptureandcomparetimerisnotavailable,astandardtimerinterruptandacountercanbeused.
ConfigurethetimerinterrupttobesignificantlyfasterthantheperiodofthePWM,basedonthedesiredresolution.
Counthowmanytimesthetimerinterruptswhilethesignalishigh(OnTime),thencounthowmanytimesthetimerinterruptswhilethesignalislow(OffTime).
ThenuseEquation1tocalculatethedutycycle.
8.
1.
2.
1.
3AccuracyandResolutionTheaccuracyandresolutionforthemethodsdescribedintheSection8.
1.
2.
1.
1andSection8.
1.
2.
1.
2sectionsdependssignificantlyonthetimersamplingfrequency.
Equation2calculatestheleastsignificantbitofthedutycycle(%DLSB)basedonthechosentimersamplingfrequency.
(2)Forexample,witha2-kHzPWManda400-kHzsamplingfrequency,the%DLSBis:(2kHz/400kHz)*100=0.
5%DLSBIfthesamplingfrequencyinincreasedto2-MHz,the%DLSBisimprovedtobe:(2MHz/400kHz)*100=0.
1%DLSBHowever,accuracyandresolutionarestillsubjecttonoiseandsensitivity.
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1.
2.
2DecodingaPWM(Analog)Ifananalogsignalisneededattheendofalargetraveldistance,firstuseamicrocontrollertodigitallydecodethePWM,thenuseaDACtoproducetheanalogsignal.
Ifananalogsignalisneededafterashortsignaltraveldistance,useananalogoutputdevice,suchastheDRV5055.
Ifananalogsignalisneededattheendofalargetraveldistanceandamicrocontrollerisunavailable,usealow-passfiltertoconvertthePWMsignalintoananalogvoltage,asshowninFigure8-1.
Whenusingthismethod,notethefollowing:Arippleappearsattheanalogvoltageoutput,causingadecreaseinaccuracy.
TherippleintensityandfrequencydependonthevalueschosenforRandCinthefilter.
TheminimumandmaximumvoltagesofthePWMmustbeknowntocalculatethemagneticfieldstrengthfromtheanalogvoltage.
Thus,ifthesignalistravelingalargedistance,thentheminimumandmaximumvaluesmustbeeithermeasuredorbufferedbacktoaknownvalue.
Figure8-1.
Low-PassRCFilter8.
2TypicalApplicationsTheDRV557-Q1isaveryrobustlinearpositionsensorforapplicationssuchasthrottlepositions,brakes,andclutchpedals.
Inlinearpositionapplications,dependingonthemechanicalplacementanddesignlimitations,twocommontypesofmagnetorientationsareselected:full-swingandhalf-swing.
8.
2.
1Full-SwingOrientationExampleInthefull-swingorientation,amagnettravelsinparalleltotheDRV5057-Q1surface.
Inthiscase,themagneticrangeextendsfromsouthpolaritytonorthpolarity,andallowstheDRV5057-Q1tousethefulllinearmagneticfluxdensitysensingrange.
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Full-SwingOrientationExample8.
2.
1.
1DesignRequirementsUsetheparameterslistedinTable8-1forthisdesignexample.
Table8-1.
DesignParametersDESIGNPARAMETEREXAMPLEVALUEDeviceDRV5057VCC5VMagnetCylinder:4.
7625-mmdiameter,12.
7-mmthick,neodymiumN52,Br=1480mTTraveldistance10mmDesiredaccuracy<0.
1mm8.
2.
1.
2DetailedDesignProcedureLinearHalleffectsensorsprovideflexibilityinmechanicaldesignbecausemanypossiblemagnetorientationsandmovementsproduceausableresponsefromthesensor.
Figure8-2illustratesoneofthemostcommonorientationsthatusesthefullnorthtosouthrangeofthesensorandcausesaclose-to-linearchangeinmagneticfluxdensityasthemagnetmovesacrossthesensor.
Figure8-3illustratestheclose-to-linearchangeinmagneticfieldpresentatthesensorasthemagnetmovesagivendistanceacrossthesensor.
Theusablelinearregionisclosetobutlessthanthelength(thickness)ofthemagnet.
Whendesigningalinearmagneticsensingsystem,alwaysconsiderthesethreevariables:themagnet,sensingdistance,andtherangeofthesensor.
SelecttheDRV5057withthehighestsensitivitypossiblebasedonthesystemdistancerequirementswithoutrailingthesensorPWMoutput.
Todeterminethemagneticfluxdensitythesensorreceivesatthevariouspositionsofthemagnet,useamagneticfieldcalculatororsimulationsoftware,referringtomagnetspecifications,andtesting.
Determineifthedesiredaccuracyismetbycomparingthemaximumalloweddutycycleleastsignificantbit(%DLSBmax)withthenoiselevel(PWMjitter)ofthedevice.
Equation3calculatesthe%DLSBmaxbytakingintoaccounttheusedlengthofthelinearregion(traveldistance),thedesiredresolution,andtheoutputPWMswing(withinthelineardutycyclerange).
(3)DRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
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1=0.
84%DLSBmax.
Thisvalueislargerthanthe0.
1%Djitter,andthereforethedesiredaccuracycanbeachievedbyusingEquation2toselecta%DLSBthatisequaltoorlessthan0.
84.
Then,simplycalibratethemagnetpositiontoalignthesensoroutputalongthemovementpath.
8.
2.
1.
3ApplicationCurveFigure8-3showsthemagneticfieldpresentatthesensorasthemagnetpassesbyasdescribedinFigure8-2.
Thechangeindistancefromthetroughtothepeakisapproximatelythelength(thickness)ofthemagnet.
Bchangesbasedonthestrengthofthemagnetandhowclosethemagnetistothesensor.
Figure8-3.
MagneticFieldvsDistancewww.
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2.
2Half-SwingOrientationExampleInthehalf-swingorientation,amagnettravelsperpendiculartotheDRV5057-Q1surface.
Inthiscase,themagneticrangeextendsonlytoeitherthesouthornorthpole,usingonlyhalfoftheDRV5057-Q1linearmagneticfluxdensitysensingrange.
Figure8-4.
Half-SwingOrientationExample8.
2.
2.
1DesignRequirementsUsetheparameterslistedinTable8-2forthisdesignexample.
Table8-2.
DesignParametersDESIGNPARAMETEREXAMPLEVALUEDeviceDRV5057VCC5VMagnetCylinder:4.
7625mmdiameter,12.
7mmthick,NeodymiumN52,Br=1480mTTraveldistance5mmDesiredaccuracy<0.
1mm8.
2.
2.
2DetailedDesignProcedureAsillustratedinFigure8-4,thisdesignexampleconsistsofamechanicalcomponentthatmovesbackandforth,anembeddedmagnetwiththesouthpolefacingtheprinted-circuitboard,andaDRV5057.
TheDRV5057outputsaPWMthatdescribestheprecisepositionofthecomponent.
Thecomponentmustnotcontainferromagneticmaterialssuchasiron,nickel,andcobaltbecausethesematerialschangethemagneticfluxdensityatthesensor.
Whendesigningalinearmagneticsensingsystem,alwaysconsiderthesethreevariables:themagnet,sensingdistance,andtherangeofthesensor.
SelecttheDRV5057withthehighestsensitivitypossiblebasedonthesystemdistancerequirementswithoutrailingthesensorPWMoutput.
Todeterminethemagneticfluxdensitythesensorreceivesatthevariouspositionsofthemagnet,useamagneticfieldcalculatororsimulationsoftware,referringtomagnetspecifications,andtesting.
Magnetsaremadefromvariousferromagneticmaterialsthathavetradeoffsincost,driftwithtemperature,absolutemaximumtemperatureratings,remanenceorresidualinduction(Br),andcoercivity(Hc).
TheBrandthedimensionsofamagnetdeterminethemagneticfluxdensity(B)producedin3-dimensionalspace.
ForsimpleDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
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Figure8-5showsdiagramsforEquation4andEquation5.
Figure8-5.
RectangularBlockandCylinderMagnetsUseEquation4fortherectangularblockshowninFigure8-5:(4)UseEquation5forthecylinderillustratedinFigure8-5:(5)where:WiswidthLislengthTisthickness(thedirectionofmagnetization)DisdistanceCisdiameterThisexampleusesacylindermagnet;therefore,Equation5canbeusedtocreatealookuptableforthedistancesfromaspecificmagnetbasedonamagneticfieldstrength.
Figure8-6showsamagneticfieldfrom0mmto16mmwiththemagnetdefinedinTable8-2asC=4.
7625mm,T=12.
7mm,andBr=1480mT.
Figure8-6.
MagneticFieldvsDistancewww.
ti.
comDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020Copyright2020TexasInstrumentsIncorporatedSubmitDocumentFeedback19ProductFolderLinks:DRV5057Inthissetup,eachgainversionofthesensorproducesthecorrespondingdutycycleshowninFigure8-7for0mmto16mm.
Figure8-7.
%DvsSouthPoleDistance(AllGains)Withadesired5-mmmovementswing,selecttheDRV5057withthelargestpossiblesensitivitythatfitsthesystemrequirementsforthemagnetdistancetothesensor.
Assumethatforthisexample,becauseofmechanicalrestrictions,themagnetatthenearestpointtothesensormustbeselectedtobewithin5mmto8mm.
Thelargestsensitivityoption(A1)doesnotworkinthissituationbecausethedeviceoutputisrailedatthefarthestalloweddistanceof8mm.
TheA2versionisnotrailedatthispoint,andisthereforethesensorselectedforthisexample.
Choosetheclosestpointofthemagnettothesensortobeadistancethatallowsthemagnettogetasclosetothesensoraspossiblewithoutrailingbutstayswithintheselectable5-mmto8-mmallowedrange.
BecausetheA2versionrailsatapproximately6mm,chooseaclosestdistanceof6.
5mmtoallowforalittlebitofmargin.
Withthischoice,Figure8-8showsthe%Dresponseatthesensoracrossthefullmovementrange.
Figure8-8.
%DvsSouthPoleDistance(GainA2)DRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
ti.
com20SubmitDocumentFeedbackCopyright2020TexasInstrumentsIncorporatedProductFolderLinks:DRV5057ThemagneticfieldstrengthiscalculatedusingEquation6,whereanegativenumberrepresentstheoppositepole(inthisexampleasouthpoleisoverthesensor,causingtheresultstobeapositivenumber).
(6)Forexample,iftheA2versionoftheDRV5057measuredadutycycleof%D=74.
6%usingEquation1,thenthemagneticfieldstrengthpresentatthesensoris(74.
6–50)/1=24.
6mT.
UsingthelookuptablethatwasusedtocreatetheplotinFigure8-6,thedistancefromthemagnetat24.
6mTisD≈8.
2mm.
Formoreaccurateresults,thelookuptablecanbecalibratedalongthemovementpathofthemagnet.
Additionally,insteadofusingthecalibratedlookuptableforeachmeasurement,considerusingabest-fitpolynomialequationfromthecurveforthedesiredmovementrangetocalculateDintermsofB.
ThecurveinFigure8-8isnotlinear;therefore,theachievableaccuracyvariesforeachpositionalongthemovementpath.
Thelocationwiththeworstaccuracyiswherethereisthesmallestchangeinoutputforagivenamountofmovement,whichinthisexampleiswherethemagnetisfarthestfromthesensor(at11.
5mm).
Determineifthedesiredaccuracyismetbycheckingiftheneeded%DLSBatthislocationforthespecifiedaccuracyisgreaterthanthenoiselevel(PWMjitter)of0.
1%D.
Thus,withadesiredaccuracyof0.
1mm,theneeded%DLSBisthechangein%Dbetween11.
4mmand11.
5mm.
UsingthelookuptabletofindBandthensolvingfor%DinEquation6,at11.
5mm,B=11.
815mT(whichequatesto61.
815%D),andat11.
4mmB=12.
048mT(whichequatesto62.
048%D).
Thedifferencein%Dbetweenthesetwopointsis62.
048–61.
815=0.
223%DLSB.
Thisvalueislargerthanthe0.
1%Djitter,sothedesiredaccuracycanbemetaslongasa%DLSBisselectedthatisequaltoorlessthan0.
223usingEquation2.
www.
ti.
comDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020Copyright2020TexasInstrumentsIncorporatedSubmitDocumentFeedback21ProductFolderLinks:DRV50578.
3WhattoDoandWhatNottoDoTheHallelementissensitivetomagneticfieldsthatareperpendiculartothetopofthepackage.
Therefore,tocorrectlydetectthemagneticfield,makesuretousethecorrectmagnetorientationforthesensor.
Figure8-9showscorrectandincorrectorientation.
Figure8-9.
CorrectandIncorrectMagnetOrientationDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
ti.
com22SubmitDocumentFeedbackCopyright2020TexasInstrumentsIncorporatedProductFolderLinks:DRV50579PowerSupplyRecommendationsUseadecouplingcapacitorplacedclosetothedevicetoprovidelocalenergywithminimalinductance.
Useaceramiccapacitorwithavalueofatleast0.
01F.
10Layout10.
1LayoutGuidelinesMagneticfieldspassthroughmostnonferromagneticmaterialswithnosignificantdisturbance.
EmbeddingHalleffectsensorswithinplasticoraluminumenclosuresandsensingmagnetsontheoutsideiscommonpractice.
Magneticfieldsalsoeasilypassthroughmostprinted-circuitboards,whichmakesplacingthemagnetontheoppositesidepossible.
10.
2LayoutExamplesFigure10-1.
LayoutExampleswww.
ti.
comDRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020Copyright2020TexasInstrumentsIncorporatedSubmitDocumentFeedback23ProductFolderLinks:DRV505711DeviceandDocumentationSupport11.
1DocumentationSupport11.
1.
1RelatedDocumentationForrelateddocumentationseethefollowing:TexasInstruments,UsingLinearHallEffectSensorstoMeasureAngletechnoteTexasInstruments,IncrementalRotaryEncoderDesignConsiderationstechnoteTexasInstruments,DRV5055RatiometricLinearHallEffectSensordatasheet11.
2ReceivingNotificationofDocumentationUpdatesToreceivenotificationofdocumentationupdates,navigatetothedeviceproductfolderonti.
com.
ClickonSubscribetoupdatestoregisterandreceiveaweeklydigestofanyproductinformationthathaschanged.
Forchangedetails,reviewtherevisionhistoryincludedinanyreviseddocument.
11.
3SupportResourcesTIE2Esupportforumsareanengineer'sgo-tosourceforfast,verifiedanswersanddesignhelp—straightfromtheexperts.
Searchexistinganswersoraskyourownquestiontogetthequickdesignhelpyouneed.
Linkedcontentisprovided"ASIS"bytherespectivecontributors.
TheydonotconstituteTIspecificationsanddonotnecessarilyreflectTI'sviews;seeTI'sTermsofUse.
11.
4TrademarksTIE2EisatrademarkofTexasInstruments.
Allothertrademarksarethepropertyoftheirrespectiveowners.
11.
5ElectrostaticDischargeCautionThisintegratedcircuitcanbedamagedbyESD.
TexasInstrumentsrecommendsthatallintegratedcircuitsbehandledwithappropriateprecautions.
Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.
ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.
Precisionintegratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.
11.
6GlossaryTIGlossaryThisglossarylistsandexplainsterms,acronyms,anddefinitions.
12Mechanical,Packaging,andOrderableInformationThefollowingpagesincludemechanical,packaging,andorderableinformation.
Thisinformationisthemostcurrentdataavailableforthedesignateddevices.
Thisdataissubjecttochangewithoutnoticeandrevisionofthisdocument.
Forbrowser-basedversionsofthisdatasheet,refertotheleft-handnavigation.
DRV5057SBAS646A–NOVEMBER2018–REVISEDAUGUST2020www.
ti.
com24SubmitDocumentFeedbackCopyright2020TexasInstrumentsIncorporatedProductFolderLinks:DRV5057PACKAGEOPTIONADDENDUMwww.
ti.
com10-Dec-2020Addendum-Page1PACKAGINGINFORMATIONOrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Leadfinish/Ballmaterial(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)SamplesDRV5057A1QDBZRACTIVESOT-23DBZ33000RoHS&GreenSNLevel-2-260C-1YEAR-40to12557A1DRV5057A1QDBZTACTIVESOT-23DBZ3250RoHS&GreenSNLevel-2-260C-1YEAR-40to12557A1DRV5057A1QLPGACTIVETO-92LPG31000RoHS&GreenSNN/AforPkgType-40to12557A1DRV5057A1QLPGMACTIVETO-92LPG33000RoHS&GreenSNN/AforPkgType-40to12557A1DRV5057A2QDBZRACTIVESOT-23DBZ33000RoHS&GreenSNLevel-2-260C-1YEAR-40to12557A2DRV5057A2QDBZTACTIVESOT-23DBZ3250RoHS&GreenSNLevel-2-260C-1YEAR-40to12557A2DRV5057A2QLPGACTIVETO-92LPG31000RoHS&GreenSNN/AforPkgType-40to12557A2DRV5057A2QLPGMACTIVETO-92LPG33000RoHS&GreenSNN/AforPkgType-40to12557A2DRV5057A3QDBZRACTIVESOT-23DBZ33000RoHS&GreenSNLevel-2-260C-1YEAR-40to12557A3DRV5057A3QDBZTACTIVESOT-23DBZ3250RoHS&GreenSNLevel-2-260C-1YEAR-40to12557A3DRV5057A3QLPGACTIVETO-92LPG31000RoHS&GreenSNN/AforPkgType-40to12557A3DRV5057A3QLPGMACTIVETO-92LPG33000RoHS&GreenSNN/AforPkgType-40to12557A3DRV5057A4QDBZRACTIVESOT-23DBZ33000RoHS&GreenSNLevel-2-260C-1YEAR-40to12557A4DRV5057A4QDBZTACTIVESOT-23DBZ3250RoHS&GreenSNLevel-2-260C-1YEAR-40to12557A4DRV5057A4QLPGACTIVETO-92LPG31000RoHS&GreenSNN/AforPkgType-40to12557A4DRV5057A4QLPGMACTIVETO-92LPG33000RoHS&GreenSNN/AforPkgType-40to12557A4DRV5057Z1QDBZRACTIVESOT-23DBZ33000RoHS&GreenSNLevel-2-260C-1YEAR-40to12557Z1DRV5057Z1QDBZTACTIVESOT-23DBZ3250RoHS&GreenSNLevel-2-260C-1YEAR-40to12557Z1DRV5057Z2QDBZRACTIVESOT-23DBZ33000RoHS&GreenSNLevel-2-260C-1YEAR-40to12557Z2DRV5057Z2QDBZTACTIVESOT-23DBZ3250RoHS&GreenSNLevel-2-260C-1YEAR-40to12557Z2PACKAGEOPTIONADDENDUMwww.
ti.
com10-Dec-2020Addendum-Page2OrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Leadfinish/Ballmaterial(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)SamplesDRV5057Z3QDBZRACTIVESOT-23DBZ33000RoHS&GreenSNLevel-2-260C-1YEAR-40to12557Z3DRV5057Z3QDBZTACTIVESOT-23DBZ3250RoHS&GreenSNLevel-2-260C-1YEAR-40to12557Z3DRV5057Z4QDBZRACTIVESOT-23DBZ33000RoHS&GreenSNLevel-2-260C-1YEAR-40to12557Z4DRV5057Z4QDBZTACTIVESOT-23DBZ3250RoHS&GreenSNLevel-2-260C-1YEAR-40to12557Z4(1)Themarketingstatusvaluesaredefinedasfollows:ACTIVE:Productdevicerecommendedfornewdesigns.
LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect.
NRND:Notrecommendedfornewdesigns.
Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartinanewdesign.
PREVIEW:Devicehasbeenannouncedbutisnotinproduction.
Samplesmayormaynotbeavailable.
OBSOLETE:TIhasdiscontinuedtheproductionofthedevice.
(2)RoHS:TIdefines"RoHS"tomeansemiconductorproductsthatarecompliantwiththecurrentEURoHSrequirementsforall10RoHSsubstances,includingtherequirementthatRoHSsubstancedonotexceed0.
1%byweightinhomogeneousmaterials.
Wheredesignedtobesolderedathightemperatures,"RoHS"productsaresuitableforuseinspecifiedlead-freeprocesses.
TImayreferencethesetypesofproductsas"Pb-Free".
RoHSExempt:TIdefines"RoHSExempt"tomeanproductsthatcontainleadbutarecompliantwithEURoHSpursuanttoaspecificEURoHSexemption.
Green:TIdefines"Green"tomeanthecontentofChlorine(Cl)andBromine(Br)basedflameretardantsmeetJS709Blowhalogenrequirementsof<=1000ppmthreshold.
Antimonytrioxidebasedflameretardantsmustalsomeetthe<=1000ppmthresholdrequirement.
(3)MSL,PeakTemp.
-TheMoistureSensitivityLevelratingaccordingtotheJEDECindustrystandardclassifications,andpeaksoldertemperature.
(4)Theremaybeadditionalmarking,whichrelatestothelogo,thelottracecodeinformation,ortheenvironmentalcategoryonthedevice.
(5)MultipleDeviceMarkingswillbeinsideparentheses.
OnlyoneDeviceMarkingcontainedinparenthesesandseparatedbya"~"willappearonadevice.
IfalineisindentedthenitisacontinuationofthepreviouslineandthetwocombinedrepresenttheentireDeviceMarkingforthatdevice.
(6)Leadfinish/Ballmaterial-OrderableDevicesmayhavemultiplematerialfinishoptions.
Finishoptionsareseparatedbyaverticalruledline.
Leadfinish/Ballmaterialvaluesmaywraptotwolinesifthefinishvalueexceedsthemaximumcolumnwidth.
ImportantInformationandDisclaimer:TheinformationprovidedonthispagerepresentsTI'sknowledgeandbeliefasofthedatethatitisprovided.
TIbasesitsknowledgeandbeliefoninformationprovidedbythirdparties,andmakesnorepresentationorwarrantyastotheaccuracyofsuchinformation.
Effortsareunderwaytobetterintegrateinformationfromthirdparties.
TIhastakenandcontinuestotakereasonablestepstoproviderepresentativeandaccurateinformationbutmaynothaveconducteddestructivetestingorchemicalanalysisonincomingmaterialsandchemicals.
TIandTIsuppliersconsidercertaininformationtobeproprietary,andthusCASnumbersandotherlimitedinformationmaynotbeavailableforrelease.
PACKAGEOPTIONADDENDUMwww.
ti.
com10-Dec-2020Addendum-Page3InnoeventshallTI'sliabilityarisingoutofsuchinformationexceedthetotalpurchasepriceoftheTIpart(s)atissueinthisdocumentsoldbyTItoCustomeronanannualbasis.
OTHERQUALIFIEDVERSIONSOFDRV5057:Automotive:DRV5057-Q1NOTE:QualifiedVersionDefinitions:Automotive-Q100devicesqualifiedforhigh-reliabilityautomotiveapplicationstargetingzerodefectsTAPEANDREELINFORMATION*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQReelDiameter(mm)ReelWidthW1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W(mm)Pin1QuadrantDRV5057A1QDBZRSOT-23DBZ33000180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057A1QDBZTSOT-23DBZ3250180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057A2QDBZRSOT-23DBZ33000180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057A2QDBZTSOT-23DBZ3250180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057A3QDBZRSOT-23DBZ33000180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057A3QDBZTSOT-23DBZ3250180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057A4QDBZRSOT-23DBZ33000180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057A4QDBZTSOT-23DBZ3250180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057Z1QDBZRSOT-23DBZ33000180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057Z1QDBZTSOT-23DBZ3250180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057Z2QDBZRSOT-23DBZ33000180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057Z2QDBZTSOT-23DBZ3250180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057Z3QDBZRSOT-23DBZ33000180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057Z3QDBZTSOT-23DBZ3250180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057Z4QDBZRSOT-23DBZ33000180.
08.
43.
152.
771.
224.
08.
0Q3DRV5057Z4QDBZTSOT-23DBZ3250180.
08.
43.
152.
771.
224.
08.
0Q3PACKAGEMATERIALSINFORMATIONwww.
ti.
com30-Aug-2020PackMaterials-Page1*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQLength(mm)Width(mm)Height(mm)DRV5057A1QDBZRSOT-23DBZ33000213.
0191.
035.
0DRV5057A1QDBZTSOT-23DBZ3250213.
0191.
035.
0DRV5057A2QDBZRSOT-23DBZ33000213.
0191.
035.
0DRV5057A2QDBZTSOT-23DBZ3250213.
0191.
035.
0DRV5057A3QDBZRSOT-23DBZ33000213.
0191.
035.
0DRV5057A3QDBZTSOT-23DBZ3250213.
0191.
035.
0DRV5057A4QDBZRSOT-23DBZ33000213.
0191.
035.
0DRV5057A4QDBZTSOT-23DBZ3250213.
0191.
035.
0DRV5057Z1QDBZRSOT-23DBZ33000213.
0191.
035.
0DRV5057Z1QDBZTSOT-23DBZ3250213.
0191.
035.
0DRV5057Z2QDBZRSOT-23DBZ33000213.
0191.
035.
0DRV5057Z2QDBZTSOT-23DBZ3250213.
0191.
035.
0DRV5057Z3QDBZRSOT-23DBZ33000213.
0191.
035.
0DRV5057Z3QDBZTSOT-23DBZ3250213.
0191.
035.
0DRV5057Z4QDBZRSOT-23DBZ33000213.
0191.
035.
0DRV5057Z4QDBZTSOT-23DBZ3250213.
0191.
035.
0PACKAGEMATERIALSINFORMATIONwww.
ti.
com30-Aug-2020PackMaterials-Page2www.
ti.
comPACKAGEOUTLINE4.
13.
93X15.
515.
13X0.
480.
352X1.
270.
053.
253.
053X0.
510.
363X0.
550.
402X(45)0.
860.
661.
621.
422.
642.
442.
682.
285.
05MAX(0.
5425)3X(0.
8)4221343/C01/2018TO-92-5.
05mmmaxheightLPG0003ATRANSISTOROUTLINENOTES:1.
Alllineardimensionsareinmillimeters.
Anydimensionsinparenthesisareforreferenceonly.
DimensioningandtolerancingperASMEY14.
5M.
2.
Thisdrawingissubjecttochangewithoutnotice.
13123SCALE1.
300www.
ti.
comEXAMPLEBOARDLAYOUTTYPALLAROUND0.
05MAXFULLRTYP(1.
07)(1.
7)(1.
27)(2.
54)(R0.
05)TYP2X(1.
07)2X(1.
7)3X(0.
75)VIA4221343/C01/2018TO-92-5.
05mmmaxheightLPG0003ATRANSISTOROUTLINELANDPATTERNEXAMPLENON-SOLDERMASKDEFINEDSCALE:20XMETALTYPOPENINGSOLDERMASK1322XMETAL2XSOLDERMASKOPENINGwww.
ti.
comTAPESPECIFICATIONS010112.
912.
56.
556.
1513.
012.
42.
5MIN6.
55.
53.
8-4.
2TYP9.
58.
519.
017.
51MAX21180.
450.
350.
250.
15TO-92-5.
05mmmaxheightLPG0003ATRANSISTOROUTLINE4221343/C01/20184203227/Cwww.
ti.
comPACKAGEOUTLINECTYP0.
200.
080.
252.
642.
101.
12MAXTYP0.
100.
013X0.
50.
3TYP0.
60.
21.
90.
95TYP-80A3.
042.
80B1.
41.
2(0.
95)SOT-23-1.
12mmmaxheightDBZ0003ASMALLOUTLINETRANSISTOR4214838/C04/2017NOTES:1.
Alllineardimensionsareinmillimeters.
Anydimensionsinparenthesisareforreferenceonly.
DimensioningandtolerancingperASMEY14.
5M.
2.
Thisdrawingissubjecttochangewithoutnotice.
3.
ReferenceJEDECregistrationTO-236,exceptminimumfootlength.
0.
2CAB132INDEXAREAPIN1GAGEPLANESEATINGPLANE0.
1CSCALE4.
000www.
ti.
comEXAMPLEBOARDLAYOUT0.
07MAXALLAROUND0.
07MINALLAROUND3X(1.
3)3X(0.
6)(2.
1)2X(0.
95)(R0.
05)TYP4214838/C04/2017SOT-23-1.
12mmmaxheightDBZ0003ASMALLOUTLINETRANSISTORNOTES:(continued)4.
PublicationIPC-7351mayhavealternatedesigns.
5.
Soldermasktolerancesbetweenandaroundsignalpadscanvarybasedonboardfabricationsite.
SYMMLANDPATTERNEXAMPLESCALE:15XPKG132SOLDERMASKOPENINGMETALUNDERSOLDERMASKSOLDERMASKDEFINEDMETALSOLDERMASKOPENINGNONSOLDERMASKDEFINED(PREFERRED)SOLDERMASKDETAILSwww.
ti.
comEXAMPLESTENCILDESIGN(2.
1)2X(0.
95)3X(1.
3)3X(0.
6)(R0.
05)TYPSOT-23-1.
12mmmaxheightDBZ0003ASMALLOUTLINETRANSISTOR4214838/C04/2017NOTES:(continued)6.
Lasercuttingapertureswithtrapezoidalwallsandroundedcornersmayofferbetterpasterelease.
IPC-7525mayhavealternatedesignrecommendations.
7.
Boardassemblysitemayhavedifferentrecommendationsforstencildesign.
SOLDERPASTEEXAMPLEBASEDON0.
125THICKSTENCILSCALE:15XSYMMPKG132IMPORTANTNOTICEANDDISCLAIMERTIPROVIDESTECHNICALANDRELIABILITYDATA(INCLUDINGDATASHEETS),DESIGNRESOURCES(INCLUDINGREFERENCEDESIGNS),APPLICATIONOROTHERDESIGNADVICE,WEBTOOLS,SAFETYINFORMATION,ANDOTHERRESOURCES"ASIS"ANDWITHALLFAULTS,ANDDISCLAIMSALLWARRANTIES,EXPRESSANDIMPLIED,INCLUDINGWITHOUTLIMITATIONANYIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEORNON-INFRINGEMENTOFTHIRDPARTYINTELLECTUALPROPERTYRIGHTS.
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