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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 element and amplifier in a single chip minimizes many problems 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.