AH1822-FU4G-7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Function:	Omnipolar Switch
Technology:	Hall Effect
Polarization:	Either
Sensing Range:	±5.5mT Trip, ±1mT Release
Test Condition:	25°C
Voltage - Supply:	2.5 V ~ 5.5 V
Current - Supply (Max):	16µA
Current - Output (Max):	--
Output Type:	Open Drain
Features:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	6-XFDFN Exposed Pad
Supplier Device Package:	6-DFN3020 (3.01x2.01)

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Introduction to Magnetic Sensors - Switches (Solid State)

Magnetic sensors - switches (solid state) are electronic devices that measure and respond to the presence or absence of a magnetic field. They typically consist of three main components: a source of magnetic flux, a sensing element, and an output device. These devices are used in many applications, including industrial automation, consumer electronics, robotics, medical devices, and aerospace.

AH1822-FU4G-7 Magnetic Sensor - Switch

The AH1822-FU4G-7 is a high performance magnetic sensor - switch designed for a wide range of applications. It features an integrated magnetic flux source, a CMOS Hall effect sensor, and an open collector output transistor for high current signal conditioning. The device is configured as a digital on/off switch, and is ideal for proximity sensing, motion detection, and intrusion detection.

AH1822-FU4G-7 Application Field and Working Principle

The AH1822-FU4G-7 can be used in a variety of applications, such as position sensing in automobiles, detection of magnetic field in medical devices, and motion detection in security systems.The device is able to detect the presence of a magnetic field generated by a permanent magnet or an electromagnet. When the magnetic flux from the source meets the Hall element, a voltage is generated, which is then sent to the output device. The Hall signal is processed by an integrated ASIC, providing a digital on/off output as a function of the magnetic field intensity.The AH1822-FU4G-7 device has a wide operating temperature range of between -40°C and 125°C and is rated for a maximum operating voltage of up to 30V. It features a fast response time and a robust open collector transistor which can handle high current loads up to 0.5A.The device is calibrated during production, ensuring superior repeatability and accuracy. It also includes a compensation coefficient which allows adjustments to be made for variances in temperature and external magnetic fields.

Conclusion

The AH1822-FU4G-7 magnetic sensor - switch is a versatile and reliable device that is suitable for a variety of applications. It offers a wide operating temperature range, fast response time, and a robust open collector transistor design for high current applications. The device is also calibrated during production, with the added benefit of a compensation coefficient to compensate for temperature and external magnetic fields.

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