Infineon TLE49662GHTSA1: A High-Precision Hall-Effect Latch for Automotive and Industrial Applications
The Infineon TLE49662GHTSA1 represents a significant advancement in Hall-effect sensor technology, engineered to meet the rigorous demands of modern automotive and industrial systems. As a high-precision Hall-effect latch, this device delivers exceptional magnetic switching accuracy, reliability, and robustness, making it ideal for applications where performance under extreme conditions is non-negotiable.
Core Technology and Operation
At the heart of the TLE49662GHTSA1 is a Hall-effect sensing element integrated with advanced signal conditioning circuitry. This latch operates by detecting the strength and polarity of a magnetic field, switching its output state when the magnetic flux density exceeds a predefined threshold. The latching behavior ensures that the output state is maintained even after the magnetic field is removed, providing stable and unambiguous position information. This is critical for applications such as rotary encoding, speed detection, and angular position sensing.
Key Features and Performance Advantages
One of the standout attributes of this sensor is its high sensitivity and precision, with tightly specified magnetic switch points that ensure consistent performance across operating temperatures ranging from -40°C to 170°C. This wide temperature capability is essential for automotive environments, where components must endure both extreme cold and engine bay heat.
The device is designed with reverse polarity protection and overvoltage robustness, safeguarding it against electrical faults common in automotive electrical systems. Its low power consumption makes it suitable for battery-powered applications, while its EMC robustness ensures reliable operation in electromagnetically noisy environments, such as those found near electric motors or power inverters.
Automotive and Industrial Applications

In the automotive sector, the TLE49662GHTSA1 is extensively used for wheel speed sensing, transmission shaft monitoring, and pedal position detection. Its AEC-Q100 qualification confirms its suitability for automotive safety and reliability standards. For industrial applications, it serves in brushless DC motor commutation, flow metering, and safety interlock systems, where its durability and accuracy enhance system efficiency and safety.
Packaging and Integration
Housed in a small and robust SOT-23 package, the sensor offers mechanical durability and ease of integration into space-constrained designs. The package is optimized for surface-mount technology (SMT), facilitating automated assembly processes and reducing manufacturing costs.
Conclusion
The Infineon TLE49662GHTSA1 sets a benchmark for high-performance magnetic sensing, combining precision, durability, and environmental resilience. Its ability to operate reliably in challenging conditions makes it a preferred choice for designers in automotive and industrial fields seeking to enhance system functionality and safety.
The Infineon TLE49662GHTSA1 is a top-tier Hall-effect latch that excels in accuracy, reliability, and ruggedness, making it indispensable for critical sensing tasks in demanding automotive and industrial environments.
Keywords:
Hall-effect sensor, Magnetic latch, Automotive sensing, High-precision, Industrial applications
