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ATS128 数据表(PDF) 1 Page - Allegro MicroSystems |
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ATS128 数据表(HTML) 1 Page - Allegro MicroSystems |
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1 / 25 page  Description The ATS128LSE programmable, true power-on state (TPOS), sensor IC is an optimized combination of Hall-effect IC and rare-earth pellet that switches in response to magnetic signals created by ferromagnetic targets in gear-tooth sensing and proximity sensing applications. These devices offer a wide programming range for the magnetic operate point, BOP. A fixed hysteresis then sets the magnetic release point, BRP, based on the selected BOP . The devices are externally programmable. A wide range of programmability is available on the magnetic operate point, BOP, while the hysteresis remains fixed. This advanced feature allows optimization of the sensor IC switchpoint and can drastically reduce the effects of mechanical placement tolerances found in production environments. A proprietary dynamic offset cancellation technique, with an internal high-frequency clock, reduces the residual offset voltage, which is normally caused by device overmolding, temperature dependencies, and thermal stress. Having the Hall elementandamplifierinasinglechipminimizesmanyproblems normally associated with low-level analog signals. This device is ideal for use in gathering speed or position information using gear-tooth–based configurations, or for proximity sensing with ferromagnetic targets. The ATS128 is provided in a 4-pin SIP. It is lead (Pb) free, with 100% matte tin leadframe plating. ATS128LSE-DS Features and Benefits • Chopper stabilization for stable switchpoints throughout operating temperature range • User-programmable: ▫ Magnetic operate point through theVCCpin: 9 programming bits provide 4-gauss resolution ▫ Output polarity ▫ Output fall time for reduced EMI in automotive applications • On-board voltage regulator for 3 to 24 V operation • On-chip protection against: ▫ Supply transients ▫ Output short-circuits ▫ Reverse battery condition • True Zero-Speed Operation • True Power-On State Highly Programmable, Back-Biased, Hall-Effect Switch with TPOS Functionality Package: 4-pin SIP (suffix SE) Functional Block Diagram Not to scale ATS128LSE Switchpoint TC Trim VCC GND VOUT To all subcircuits Regulator Trim Control Signal Recovery Amp Program Control Output Fall Time Output Polarity |
类似零件编号 - ATS128 |
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类似说明 - ATS128 |
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