MLX90326LFR-AAA-000-SP

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Humans need to measure the environment they are in while they are in the process of understanding the world around them. This need has been carried forward to the world of electronics. The mechatronic industry requires sensors to measure physical quantities like pressure, temperature and more. One such sensor is the MLX90326LFR-AAA-000-SP, belonging to the MLX90326 family of Hall Effect sensors manufactured by Melexis. This versatile, high precision, contactless digital sensor is used for wide range of applications including steering position sensing for gear shifters, potentiometer replacement, pedal sensors, joysticks, ratchets and more. In this article, we will discuss the application field and working principle of the MLX90326LFR-AAA-000-SP.

The MLX90326LFR-AAA-000-SP is equipped with a Hall Effect sensing principle, which is based on the detection of a magnetic field passing through a Hall Effect-based device. The Hall Effect was discovered by Edwin Hall in 1879 and is one of the most widely used sensing principles in modern electronics. It detects the presence of a magnetic field via a voltage generated across two leads when placed in a transverse magnetic field. This voltage is proportional to the strength of the magnetic field, and can be used to measure the position or movement of an associated magnet.

The MLX90326LFR-AAA-000-SP uses this Hall Effect sensing principle to measure the position of an associated magnet. It is an integrated Hall Effect sensor with an integrated passive amplifier, linearizer and temperature compensation for superior stability and accuracy. The chip is small, measuring just 9mm x 9mm x 0.8mm, yet it is highly sophisticated. It can detect up to 256 different positions with a resolution of 0.5 degree and a linear accuracy of up to 0.5%. It has a quiescent current of 13uA and an operating current of just 140uA, making it an extremely efficient, cost effective solution for accurate sensing requirements.

The MLX90326LFR-AAA-000-SP is ideal for a variety of automotive and industrial applications where accurate and reliable sensing is important. It is used in applications such as steering position sensing for gear shifters, pedal sensor, joysticks, ratchets, AC/DC motors and blower fans, as well as other applications in HMI control systems. It offers superior stability and accuracy in harsh environments with wide temperature range (-40°C to +150°C) and can operate in the presence of strong airflows or a wide range of temperature gradients.

The MLX90326LFR-AAA-000-SP has a wide operation range and is extremely simple to configure and implement. It can detect magnets from a distance of up to 0.75m away, making it ideal for applications where contactless sensing is required. It also boasts a low voltage (2.5V-5V) operation and a wide range of resolution options – up to 0.5° accuracy and a maximum of 256 positions. Additionally, it includes a temperature compensation feature to increase accuracy and stability over wide temperature ranges.

The MLX90326LFR-AAA-000-SP has both trigger and output comparison modes. In the trigger mode, the output voltage is provided as soon as the Hall Effect detects a magnet passing through the sensor, while in the output comparison mode, the magnetic field is compared with a reference voltage to produce a corresponding output. Depending on the application, the output can be configured for open drain active low or push-pull active high operation.

The MLX90326LFR-AAA-000-SP is a versatile, high precision, contactless digital sensor that combines high accuracy with a wide range of temperatures and wide operation range, making it an ideal choice for a variety of automotive and industrial applications. It is easy to configure and can be implemented quickly, and its superior accuracy and stability ensure accurate position sensing over a large temperature range. All in all, the MLX90326LFR-AAA-000-SP stands as an excellent choice for a reliable, accurate and cost-effective solution for advanced positioning applications.

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