Overview
The TLE49215UHALA1 is a Hall-effect sensor developed for precision magnetic field sensing in demanding environments. As part of Infineon's automotive-grade sensor portfolio, it combines high sensitivity with robust performance characteristics. This sensor operates on the Hall-effect principle, detecting changes in magnetic fields to provide accurate position or speed data. Its design prioritizes reliability, making it a preferred choice for safety-critical automotive systems such as electronic power steering and transmission control.
Structure and Working Principle
The TLE49215UHALA1 features a monolithic integrated circuit containing a Hall plate, signal conditioning electronics, and output driver. The sensing element converts magnetic flux density into a proportional voltage signal. When exposed to a magnetic field, the Hall plate generates a voltage perpendicular to both the current flow and magnetic field direction. This analog signal is processed internally to provide a clean, amplified output. The device includes built-in temperature compensation to maintain accuracy across its operating range (-40°C to 150°C).
Key Features
The sensor's high sensitivity (typically 3.5mV/G) enables detection of small magnetic field variations, crucial for precision applications. Its low quiescent current (typically 6mA) makes it suitable for battery-powered systems. A standout feature is the wide operating voltage range (3.0V to 24V), accommodating various automotive and industrial power systems. The device also offers excellent resistance to mechanical stress and ESD protection up to 4kV, ensuring long-term reliability in harsh conditions.
Application Areas
In automotive systems, the TLE49215UHALA1 is commonly used for throttle position sensing, pedal position detection, and transmission speed measurement. Its robustness against vibration and temperature extremes makes it ideal for under-hood applications. Industrial applications include rotary encoder systems, flow meters, and brushless DC motor commutation. The sensor's precision also enables its use in medical devices and aerospace systems where reliable position feedback is critical.
Maintenance and Precautions
The TLE49215UHALA1 requires minimal maintenance due to its solid-state design. However, periodic verification of output signals is recommended in critical applications to ensure continued accuracy. During installation, avoid placing the sensor near strong electromagnetic interference sources. Proper alignment with the target magnet is crucial for optimal performance. The device should be handled with ESD precautions, and solder reflow profiles must adhere to manufacturer specifications to prevent thermal damage.
B2B Procurement Guide
When sourcing the TLE49215UHALA1, verify the supplier's authorization status with Infineon to ensure genuine components. Lead times can vary significantly (typically 8-16 weeks), so plan procurement accordingly. Consider ordering evaluation kits (EVAL-IC-HALL-1) for prototyping. For high-volume purchases (10,000+ units), negotiate pricing tiers and request manufacturer's batch traceability documentation. Quality-focused buyers should specify AEC-Q100 compliance for automotive applications.
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