MLX92221LUA-BAA-102-SP

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The MLX92221LUA-BAA-102-SP Magnetic Sensor principally operates as a switch, sensing the presence of magnetic fields and alter its output accordingly. This device is used to detect the position and movement of ferromagnetic and iron materials, and thereby respond at the appropriate times when in a system requiring the detection of such metric change. This makes it a great fit for a wide range of application fields ranging from industry, consumer, automobiles, and even safety, amongst others.

Application Field

The MLX92221LUA-BAA-102-SP Magnetic Sensor is widely used in many application fields for the same reason: to sense changes in a magnetic field and respond accordingly. As this technology is cheap, non-contact, mindless, reliable, and relatively accurate, this type of magnetic sensing devices is one of the must popular type of sensoring device used in all sorts of application fields.

• Industry: Level control, proximity sensing, motor control, and various other industrial applications.
• Consumer: Additional security feature for home doors or other access points, or as a presence detection system.
• Automobiles: Detecting the position of a vehicle, diagnosis of vehicle parts, and motion control of vehicles.
• Safety: For monitoring safety conditions of various processes, or alarm systems.
• Plus many others.

Working Principle

The MLX92221LUA-BAA-102-SP Magnetic Sensor is a two terminal single-pole-double-throw switch that responds to a magnetic field generated around the device. This switch is designed with two switching actions which are open and close using two different type of materials: a ferromagnetic material and a resistor material. During ON-mode, the ferromagnetic material is attracted to the switch due to the magnetic field generated, and contact to the resistor material within. The resistor material provides an current flow paths between two terminals and the device enters the ON-mode with a voltage output of 0. In OFF-mode, the ferromagnetic material is pushed away from the switch due to the opposing magnetic field and contact to the resistor material is released. This ends the current flow paths and the device enters the OFF-mode with a voltage output of 1.

Conclusion

The MLX92221LUA-BAA-102-SP Magnetic Sensor is one of the most useful devices for detecting magnetic fields and their associated changes. This device can be used in a variety of application fields in order to sense metric changes, from industrial, consumer, automobiles, and safety, amongst others. The working principle behind this device is through two switching actions and two different materials for them, a ferromagnetic material and a resistor material. This switch is designed to be a two terminal single-pole-double-throw switch that responds to a magnetic field generated around the device, producing an output of 0 or 1, depending on which materials are contact to each other.

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