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ATS19580LSNBTN-FDIHBO Datasheet(PDF) 1 Page - Allegro MicroSystems |
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ATS19580LSNBTN-FDIHBO Datasheet(HTML) 1 Page - Allegro MicroSystems |
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1 / 16 page  • Fully integrated solution has GMR IC, protection capacitor, and back-bias magnet in a single in-line overmolded package • Innovative GMR technology provides large operational air gap sensing on ferromagnetic targets • Advanced algorithms for flexible design-in and system compensation □ Advanced vibration algorithms guarantee valid direction information □ Automatically adapts to extreme mechanical changes (air gap) and thermal drifts • Measures differentially to reject common-mode stray magnetic fields • Orientation compatible with Hall-effect technology • Integrated ASIL diagnostics and certified safety design process (optional fault reporting) TheATS19580 is a giant magnetoresistance (GMR) integrated circuit (IC) that provides a user-friendly two-wire solution for applications where speed and direction information is required using ferromagnetic gear tooth targets. The fully integrated package includes the GMR IC, a protection capacitor for EMC robustness, and a back-bias magnet in a single in-line package. The GMR-based IC is designed for use with ferromagnetic gear tooth targets and is orientation-compatible with Hall- effect technology. The fully integrated solution senses at large operating air gaps and over a large air gap range. State-of-the- art GMR technology on a monolithic IC with industry-leading signal processing provides accurate speed and direction information in response to low-level differential magnetic signals. The differential sensing offers inherent rejection of interfering common-mode magnetic fields. IntegrateddiagnosticsareusedtodetectanICfailurethatwould impactoutputprotocolaccuracy,providingcoveragecompatible withASILB (assessment pending). Built-in EEPROM scratch memory offers traceability of the device throughout the IC’s product lifecycle. ASIL reporting can be enabled or disabled as a product offering depending on the applications’ needs. The ATS19580 is provided in a lead (Pb) free 3-pin SIP package with tin leadframe plating. The SN package includes a GMR IC, a magnet, and capacitor integrated into a single overmold, with an additional molded lead-stabilizing bar for robust shipping and ease of assembly. ATS19580-DS, Rev. 2 MCO-0000925 Large Air Gap, GMR Transmission Speed and Direction Sensor IC for Gear Tooth Sensing PACKAGE: 3-pin SIP (suffix SN) Functional Block Diagram Not to scale ATS19580 + - + - Oscillator ADC Digital Controller Output Current Generator ESD VCC GND EEPROM Front End Amplification Analog-to-Digital and Signal Conditioning Regulator ADC GMR Elements Diagnostics FEATURES AND BENEFITS DESCRIPTION November 18, 2020 2 - |
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