AS5040是最小的10位多輸出旋轉(zhuǎn)磁性編碼器IC。這是一款將現(xiàn)場(chǎng)傳感霍爾(Hall)元件、A到D轉(zhuǎn)換、數(shù)字信號(hào)處理和輸出接口集成到單個(gè)芯片的系統(tǒng)級(jí)芯片(SoC)。AS5040自上市以來已被應(yīng)用于通用旋轉(zhuǎn)編碼器電路板、電梯控制、衛(wèi)星天線跟蹤、金剛砂拋光設(shè)備等多個(gè)工業(yè)領(lǐng)域,以及個(gè)人保健領(lǐng)域。由于測(cè)量精確,可靠性高,并能在惡劣環(huán)境下工作,AS5040在汽車工業(yè)市場(chǎng)也得到認(rèn)可,被應(yīng)用于方向盤角度探測(cè)、變速箱位置傳感和反向電刷控制等設(shè)備中。此外,AS5040采用了先進(jìn)的安全設(shè)計(jì)方案,可用于電子車輛穩(wěn)定(ESP)系統(tǒng)等重要安全設(shè)備。AS5040可用作遙控系統(tǒng),利用其包含的小磁體,可通過磁體的360度旋轉(zhuǎn)探測(cè)1,024個(gè)絕對(duì)位置。該器件提供了積分A/B、單通道和U-V-W交換等三種不同的增量輸出模式,既可根據(jù)用戶的特定要求設(shè)置,也可設(shè)置為脈寬調(diào)制(PWM)輸出信號(hào)。AS5040采用5.3 6.2mm16引腳SSOP封裝,可在整個(gè)工業(yè)溫度范圍下工作。此外,AS5040還提供了用戶可編程零/指針定位、磁壓監(jiān)控功能和在制造時(shí)實(shí)現(xiàn)磁體排列的診斷功能。主要特征Contactlesshighresolutionencodingoverafullturnof360 Flexiblesystemduetouserprogrammableincrementaloutputmodes:10-,9-,8-or7-bituserprogrammableresolutionQuadratureA/BandindexoutputsignalSinglechanneloutputanddirectionindicationU-V-WcommutationsignalsforbrushlessDCmotorsAbsoluteangularpositionmode:10-bitresolutionproviding1024absolutepositionsper360 (stepsize~0.35 )Synchronousserialinterface(SSI)outputforabsolutepositiondataPulsewidthmodulated(PWM)output,dutycycleproportionaltoangleUserprogrammablezeroandindexpositionFailuredetectionmodeformagnetplacementmonitoringRotationalspeedsupto10,000rpm(incrementaloutput)PushbuttonfunctionalitydetectsmovementofmagnetinZ-axis2supplyvoltages:3.3Vor5.0VWidetemperaturerange:-40 Cto125 CSSOP-16package:5.3mmx6.2mmBenefitsWorld ssmallestmultipleoutputrotaryencoderToleranttomagneticsourcemisalignmentFailuredetectionfeatureCompletesystem-on-chip:Flexiblesystemsolutionprovidesabsolute,incrementalandPWMdigitaloutputssimultaneouslyMinimumnumberofexternalcomponentsneededSerialread-outofmultipleAS5040devicesusingdaisychainmodefeatureIdealforapplicationsinharshenvironmentsduetocontactlesspositionsensing