MLX90371GVS-BCC-100-SP

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Position sensors, including angle and linear position measuring, are critical components found in a variety of applications ranging from automotive to aerospace. The MLX90371GVS-BCC-100-SP, in particular, is a single-axis digital angle measurement instrument, designed for use in automotive applications such as electronic power steering (EPS) and steering angle sensors. In this article, we will discuss the uses and working principles of the MLX90371GVS-BCC-100-SP.

The MLX90371GVS-BCC-100-SP utilizes anisotropic magneto-resistive (AMR) technology that enables contactless, accurate angle measurements. It is designed to operate with a power supply voltage between 3V and 5.5V, with power consumption of only 10 µA (at 3.3V). The instrument is able to measure angles from 0 to 359.5° and is offered in an industry standard SOIC-8 package to provide compatibility with standard automotive packaging techniques.

The MLX90371GVS-BCC-100-SP is designed for use in automotive applications, such as in electronic power steering (EPS) and steering angle sensors. This instrument provides outstanding accuracy and low voltage operation, making it ideal for providing precise angle measurements in a wide range of automotive systems. In addition, its anisotropic magneto-resistive (AMR) technology enables contactless operation and reliable measurements in extreme environmental conditions.

The working principle of the MLX90371GVS-BCC-100-SP is based on magnetic field sensing. This instrument combines an embedded magnetometer and a microprocessor to detect magnetic field variations and provide angle measurements. The magnetometer is made up of two rows of Hall plate elements, each row composed of eight elements arranged at right angles to each other. The magnetometer also employs a differential architecture to minimize the effect of external magnetic interference.

When a rotating magnet is placed close to the magnetometer, its magnetic field varies as a function of the angle between the two elements. This generates a sinusoidal voltage pattern on each row of Hall plates. The peak-to-peak voltage value is proportional to the field strength, while the phase difference between the sinusoidal voltages gives an indication of the angle between the magnet and the magnetometer. The microprocessor then computes the angle measurement based on the peak-to-peak voltage and phase difference.

In summary, the MLX90371GVS-BCC-100-SP is a single-axis digital angle measurement instrument, designed for use in automotive applications such as electronic power steering (EPS) and steering angle sensors. It utilizes anisotropic magneto-resistive (AMR) technology that enables contactless, accurate angle measurements and is offered in an industry standard SOIC-8 package. The working principle of the instrument is based on magnetic field sensing, where an embedded magnetometer and microprocessor detect magnetic field variations to provide angle measurements.

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