The ATS173LSETN-LT-RMCF-T is a highly integrated, back-biased GMR speed and direction sensor IC. Designed by Allegro MicroSystems, this sensor provides precise speed and direction information, making it suitable for a wide range of automotive and industrial applications.

Applications

• Automotive transmissions: Used for precise speed and direction sensing within transmission systems to optimize gear shifting and overall performance.
• Wheel speed sensing: Integrated into wheel speed sensors for anti-lock braking systems (ABS), traction control systems (TCS), and electronic stability control (ESC).
• Industrial motor control: Employed in industrial motor control applications to accurately monitor motor speed and direction for efficient operation.
• Vehicle speed sensing: Provides accurate vehicle speed data for speedometer displays and other vehicle control systems.
• Rotary Encoders: Can be used in high resolution rotary encoder applications.

Features

• Back-Biased GMR Technology: Utilizes advanced back-biased GMR (Giant Magnetoresistance) technology for high sensitivity and accuracy.
• Direction Detection: Provides robust direction detection capabilities, crucial for applications requiring directional information.
• High Air Gap: Designed to operate reliably with a high air gap, simplifying installation and reducing mechanical tolerances.
• Digital Output: Offers a digital output signal, facilitating easy integration with microcontrollers and other digital systems.
• Robust EMC Performance: Engineered to withstand harsh electromagnetic environments, ensuring reliable operation in demanding applications.
• Temperature Stability: Offers excellent temperature stability, maintaining performance across a wide temperature range.

Benefits

• Improved Accuracy: Back-biased GMR technology ensures highly accurate speed and direction sensing.
• Enhanced Reliability: Robust design and EMC performance provide reliable operation in challenging environments.
• Simplified Integration: Digital output and high air gap tolerance simplify system integration and reduce manufacturing costs.
• Optimized Performance: Accurate speed and direction data enables optimized performance in automotive and industrial applications.
• Reduced System Cost: High integration and simplified installation can lead to reduced overall system costs.

Additional Details

The ATS173LSETN-LT-RMCF-T operates over a wide temperature range, typically from -40°C to 150°C, making it suitable for automotive applications. The device is available in a small, surface-mount package, enabling compact system designs. It requires a supply voltage of 3.0 V to 24 V. The digital output is compatible with standard CMOS and TTL logic levels. The sensor is also designed to be highly resistant to mechanical stress and vibration, ensuring long-term reliability in demanding applications.