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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ATS668LSM Fiches technique(PDF) 1 Page - Allegro MicroSystems |
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ATS668LSM Fiches technique(HTML) 1 Page - Allegro MicroSystems |
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1 / 13 page  FEATURES AND BENEFITS • Three-wire back-biased speed sensor optimized for transmission speed-sensing applications • Integrated in-package EMC protection circuit allows compliance to most Automotive EMC environments without external circuitry • Small-signal lockout for immunity to vibration • Tight timing accuracy over full operating temperature range • True zero-speed operation • Air gap independent switchpoints • Large operating air gaps achieved through use of gain and offset adjust circuitry • Wide operating voltage range with undervoltage lockout (UVLO) • Digital output representing target profile • Single-chip sensing IC for high reliability • High-speed startup DESCRIPTION TheATS668LSM is an optimized Hall-effect integrated circuit (IC) and permanent magnet pellet combination with integrated EMCprotectioncomponentstoprovideauser-friendlysolution fortruezero-speeddigitalgeartoothsensing.Thesmallpackage can be easily assembled and used in conjunction with a wide variety of gear tooth sensing applications. The device incorporates a dual element Hall IC that switches in response to differential magnetic signals created by a ferromagnetic target. The IC contains a sophisticated compensating circuit designed to eliminate the detrimental effects of magnet and system offsets. Digital processing of the analogsignalprovideszero-speedperformanceindependentof airgapandalsodynamicadaptationofdeviceperformancetothe typical operating conditions found in automotive applications (i.e.vibrationimmunityandrunouttolerance).High-resolution peak detecting DACs are used to set the adaptive switching thresholds of the device. Hysteresis in the thresholds reduces the negative effects of any anomalies in the magnetic signal associated with system or target anomalies typically seen in many automotive applications. This device is available in a lead (Pb) free 3-pin SIP package (SM) with matte-tin leadframe plating. ATS668LSM-DS, Rev. 2 True Zero-Speed High-Accuracy Gear Tooth Sensor IC PACKAGE: 3-pin SIP (suffix SM) Functional Block Diagram Not to scale ATS668LSM Package Die Hall Amp Offset Adjust AGC PDAC NDAC + - Control Logic and Threshold Generator + - Output Control VCC VOUT GND Threshold Comparators RSUPPLY ROUT COUT CSUPPLY April 24, 2017 |
Numéro de pièce similaire - ATS668LSM |
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Description similaire - ATS668LSM |
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