磁性角度传感器_AS5040_Datasheet_EN_v2.pdf

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1、AS504010Bit360ºProgrammableMagneticRotaryEncoderGeneralDescriptionTheAS5040isacontactlessmagneticrotaryencoderforaccurateangularmeasurementoverafullturnof360°.Itisasystem-on-chip,combiningintegratedHallelements,analogfrontendanddigitalsignalprocessinginasingledevice.To

2、measuretheangle,onlyasimpletwo-polemagnet,rotatingoverthecenterofthechip,isrequired.ThemagnetmaybeplacedaboveorbelowtheIC.Theabsoluteanglemeasurementprovidesinstantindicationofthemagnet’sangularpositionwitharesolutionof0.35°=1024positionsperrevolution.Thisdigitaldatais

3、availableasaserialbitstreamandasaPWMsignal.Furthermore,auser-programmableincrementaloutputisavailable,makingthechipsuitableforreplacementofvariousopticalencoders.AninternalvoltageregulatorallowstheAS5040tooperateateither3.3Vor5Vsupplies.OrderingInformationandContentGui

4、deappearatendofdatasheet.Figure1:TypicalArrangementofAS5040andMagnetamsDatasheetPage1[v2-11]2015-Nov-20DocumentFeedbackAS5040−GeneralDescriptionKeyBenefits&FeaturesThebenefitsandfeaturesofAS5040,10Bit360ºProgrammableMagneticRotaryEncoderarelistedbelow:Figure2:AddedValu

5、eofUsingAS5040BenefitsFeatures•Contactlesshighresolutionrotationalpositionencoding•Highestreliabilityanddurabilityoverafullturnof360degrees•Simpleuser-programmableresolution,polepairsandzero•Simpleprogrammingposition•Serialcommunicationinterface(SSI)•10-bitpulsewidthmo

6、dulated(PWM)output•Multipleinterfaces•QuadratureA/BandIndexoutputsignal•Step/DirectionandIndexoutputsignal•3-PhasecommutationforbrushlessDCmotors•Idealformotorapplications•Rationalspeedsupto30,000rpm•Failuredetectionmodeformagnetplacementmonitoring•Failurediagnosticsan

7、dlossofpowersupply•Serialread-outofmultipleinterconnecteddevicesusing•Easysetupdaisychainmode•Greatflexibilityatahugeapplication•PushbuttonfunctionalitydetectsmovementofmagnetinareaZ-axis•Fullyautomotivequalified•AEC-Q100,grade1•Smallformfactor•SSOP16(5.3mmx6.2mm)•Robu

8、stenvironmentaltolerance•Widetemperaturerange:-40°Cto125°CApplicationsAS5040isidealfor:•Industrialapplications:•Conta