ATS675LSETN Self-Calibrating TPOS Speed Sensor Optimized for Automotive Cam Sensing Applications

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Company Information

Shenzhen Sivago Semiconductor Co., Ltd.

CN Manufacturer, Trading Company, Distributor/Wholesaler
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Payment Terms: T/T,Western Union,MoneyGram
Brand Name: Allegro MicroSystems
Usage: a
Description: a
Warranty: 3 Years
Theory: a
Output: a
Model Number: ATS675LSETN
Certificate: CE RoHS
Product Description


Self-Calibrating TPOS Speed Sensor
Optimized for Automotive Cam Sensing Applications

The ATS675 is the next generation of the Allegro® True Power-On State (TPOS) sensor family, offering improved accuracy compared to prior generations, gradual TPOS to
Running Mode adjustment for accuracy-shift reduction, and longer output fall time for improved radiated emissions performance. The ATS675 provides absolute zero-speed
performance and TPOS information.

The sensor incorporates a single-element Hall IC with an optimized custom magnetic circuit that switches in response to magnetic signals created by a ferromagnetic target. The IC contains a sophisticated digital circuit designed to eliminate the detrimental effects of magnet and system offsets. Signal processing is used to provide device performance at zero target speed, independent of air gap, and which adapts dynamically to the typical operating conditions found in automotive applications, particularly camshaft-sensing applications.

High resolution peak-detecting DACs are used to set the adaptive switching thresholds of the device, ensuring high accuracy despite target eccentricity. Internal hysteresis in the thresholds reduces the negative effects of anomalies in the magnetic signal (such as magnetic overshoot) associated with targets used in many automotive applications. The resulting output of the device is a digital representation of the ferromagnetic target
profile. The ATS675 also includes a low bandwidth filter that increases the noise immunity and the signal-to-noise ratio of the sensor.

▪ Chopper stabilized; optimized for automotive cam
sensing applications
▪ Optimized absolute timing accuracy step size through
gradual transition from TPOS to Running Mode
▪ High immunity to signal anomalies resulting from
magnetic overshoot and peak-to-peak field variation
▪ Tight timing accuracy over full operating
temperature range
▪ True zero-speed operation
▪ Automatic Gain Control circuitry for air gap
independent switchpoints
▪ Operation at supply voltages down to 3.3 V
▪ Digital output representing target profile
▪ Undervoltage lockout (UVLO)
▪ Patented Hall IC-magnet system
▪ Increased output fall time for improved radiated
emissions performance
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