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Allegro MicroSystems ATS19580 Large Air Gap GMR ICs is a giant magnetoresistance (GMR) integrated circuit (IC) that supports a user-friendly two-wire solution for applications requiring speed and direction information using ferromagnetic gear tooth targets. The ATS19580 is fully integrated with the GMR IC, a protection capacitor for EMC robustness, and a back-bias magnet in a single-in-line package.
The Allegro MicroSystems ATS19580 GMR-based ICs are designed for use with ferromagnetic gear tooth targets and are orientation compatible with Hall-effect technology. The fully integrated solution senses significant operating air gaps and over a large air gap range. State-of-the-art GMR technology on the ATS19580 with industry-leading signal processing offers accurate speed and direction information in response to low-level differential magnetic signals. The differential sensing offers the inherent rejection of interfering common-mode magnetic fields.
Integrated diagnostics are used to detect an IC failure that would impact the output protocol’s accuracy, furnishing coverage compatible with ASIL B. 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 housed in a lead (PB) free 3-pin SIP package with tin-lead frame plating. The SN package includes a GMR IC, a magnet, and a capacitor integrated into a single over-mold, with an extra molded lead-stabilizing bar for robust shipping and ease of assembly.
