MLX92221LSE-AAA-002-RE

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Magnetic sensors or switches are important components in various applications such as automotive, industrial automation, home appliances and so on. The MLX92221LSE-AAA-002-RE is a Magnetic Sensor/Switch - Solid State developed by Melexis. This article will cover the application field and working principle of MLX92221LSE-AAA-002-RE.

Application Field

The MLX92221LSE-AAA-002-RE sensor is designed to accurately detect the presence and location of magnetically marked objects, metal targets, or any other device with a strong magnetization like magnetic audible tags. This sensor can detect objects from a distance of 18 mm. It can be used to detect level of fluid in tanks, linear guides, and secure doors. It also finds application in automotive, industrial automation, home appliance, security systems and robotics.

The MLX92221LSE-AAA-002-RE sensor is capable of detecting extremely weak magnetic fields due to its advanced Switch Sense Technology. The presence of a magnetic field triggers a high output signal which helps in operating the device reliably and quickly. This sensor has excellent performance over a wide range of operating temperatures, ensuring reliable and consistent performance.

This sensor is suitable for applications in harsh environments since it offers a high immunity to mechanical vibration and shock. It also offers high reliability and durability which make it an ideal choice for automotive applications.

Working Principle

The MLX92221LSE-AAA-002-RE sensor is a two-wire switch that works based on Hall Effect sensing principle. The device senses a magnetic field generated by a nearby magnet and produces an output signal. A single on/off device is formed by using a permanent magnet and a Hall switch. The permanent magnet is used to generate a magnetic field, the switching action is determined by the magnetic field applied to the Hall switch.

The primary component of the MLX92221LSE-AAA-002-RE is a sensitive Hall element, which when exposed to a changing magnetic field, produces a proportional electrical output signal. When a permanent magnet is brought near to the device, the magnetic field strength due to the magnet increases and the Hall element produces an output signal corresponding to the increase in the magnetic field.

When the magnetic field decreases, the output signal of the Hall element will also decrease. Thus, the permanent magnet serves as the reference point for the operation of the Hall element. The output signal of the MLX92221LSE-AAA-002-RE is an open collector to provide a high output Sink current at VSAT and low output current when the magnetic field is lowered.

The MLX92221LSE-AAA-002-RE sensor provides a reliable, low-power, and fast response for detecting the presence or absence of a magnet. It is designed to ensure high accuracy over a wide temperature range. The sensor is also designed to accommodate any mechanical misalignment which increases the reliability of the device.

The MLX92221LSE-AAA-002-RE is a low-cost, reliable, and efficient magnetic switch that offers a wide range of application possibilities. It is ideal for applications in harsh environments and is capable of detecting very weak magnetic fields. Its advanced Switch Sense Technology ensures excellent performance and makes the device an ideal choice for automotive applications.

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