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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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ATS645LSH Fiches technique(PDF) 1 Page - Allegro MicroSystems |
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ATS645LSH Fiches technique(HTML) 1 Page - Allegro MicroSystems |
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1 / 14 page  Description The components in speed sensing applications continue to diminish in size to meet spatial constraints and weight reduction requirements. As the geometries of gears become smaller, this can compromise the capabilities of a gear speed sensor. The ATS645 Hall-element-to-Hall-element spacing of only 1.5 mm makes this device uniquely capable of accommodating very fine-pitch gears. In addition, theATS645 signal peak-detecting algorithm supports consistent switching at relatively large air gaps, where the peak-to-peak amplitude is small.These features make the ATS645 the ideal solution to detect the speed of fine- pitch targets such as those found in ABS (antilock braking) systems. The ATS645 combines a Hall-effect sensing integrated circuit and magnet to provide a manufacturer-friendly solution for true zero-speed digital gear-tooth sensing in two-wire applications. The device consists of a single-shot molded plastic package that includes a samarium cobalt magnet, a pole piece, and a Hall-effect integrated circuit that has been optimized to the magnetic circuit. This small package can be easily assembled and used in conjunction with a wide variety of gear shapes and sizes. ATS645-DS, Rev. 3 Features and Benefits • Fully optimized differential digital gear tooth sensor • Single chip IC for high reliability • Internal current regulator for 2-wire operation • Small mechanical size (8 mm diameter x 5.5 mm depth) • Air gap independent switchpoints • Digital output representing gear profile • Precise duty cycle signal over operating temperature range • Large operating air gaps • Automatic Gain Control (AGC) Two-Wire True Zero Speed Miniature Differential Peak-Detecting Gear Tooth Sensor Continued on the next page… Functional Block Diagram Not to scale Packages: 4 pin SIP (suffix SH) ATS645LSH Continued on the next page… VCC Automatic Offset Control AOA DAC Hall Amplifier AGC DAC Gain Tracking DAC Peak Hold Internal Regulator Test Signals GND Test |
Numéro de pièce similaire - ATS645LSH |
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Description similaire - ATS645LSH |
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