A1146LLHLT

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Magnetic Sensors - Switches (Solid State)

A1146LLHLT (hall effect latch) is a solid-state capability switch, utilizing an integrated circuit Hall effect latch to detect changes in the magnetic field flux. It functions as a sensor for metal surfaces in applications requiring zero contact.

Application Field

A1146LLHLT is used in applications such as door and window sensors, automotive non-contact switches, and security systems. Its main function is to sense fast switching speeds or changes in the magnetic flux. For instance, it can detect the presence of a magnetic field, which can be made available for a security system, and can be used for opening and closing doors or windows.

Working Principle

The hall-effect latch works using a Hall-effect transistor which is made up of a thin sheet of semiconductor material. The transistor is connected to a source, between which there is a magnetic field. The transistor, when placed in this magnetic field, creates a voltage difference between its two leads. This voltage difference or the resistance is then read by the circuit and used to determine when a switch has been triggered.

Specifically, an A1146LLHLT contains an integrated circuit Hall-effect latch. This integrated circuit includes two Hall-effect transistors, which are connected in series inside the device. This circuit is programmed to activate when it receives a fixed amount of current that can be adjusted through the use of external resistors. When a magnet is close enough to generate a current through the Hall-effect transistors, the transistor’s output will be triggered.

The output of the integrated circuit is designed to switch between two logic states, depending on the presence of a magnetic field. When a magnet is close enough to activate the transistors, the output is set to “active”, and when the magnet is then removed, the output automatically changes back to its original state.

Typically, the circuit output is in an “active low” configuration, meaning that when it receives an input current, the output logic level is set to 0V. However, an “active high” setup is also available.

A1146LLHLT is a versatile and reliable device that can be used in a wide range of applications. It is designed to be resilient to external interference, and its small size and low power consumption make it suitable for operation in tight spaces or in environments with limited power.

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