AD520-00E

Series:	AD
Packaging:	Tube
Part Status:	Active
Function:	Omnipolar Switch
Technology:	Hall Effect
Polarization:	Either
Sensing Range:	±3.4mT Trip, ±1.4mT Release
Test Condition:	-40°C ~ 125°C
Voltage - Supply:	4.5 V ~ 30 V
Current - Supply (Max):	4.5mA
Current - Output (Max):	20mA
Output Type:	Open Collector
Features:	--
Operating Temperature:	-40°C ~ 125°C (TA)
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	8-MSOP

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AD520-00E Magnetic Sensors - Switches (Solid State)

The AD520-00E is a magnetic sensor - switches (solid state) from the AD520-series manufactured by Allegro MicroSystems. It includes an integrated Schmitt trigger circuit to improve signal accuracy and minimize the amount of external components used in the application. This device is suitable for automotive, industrial and consumer applications.

Application Fields

The AD520-00E is used in various applications as a magnetic switch, such as in motor position sensing, position detection of various appliances (such as car windows, air intakes, cameras, and door locks), automatic shut-off of electrical appliances (soaps, detergents, and so on), and keyless entry systems. Additional usages include to detect pin placement on port-base motherboards, to detect document and tickets, and to detect various consumer products.

Working Principle

The working principle of the AD520-00E is based on the Hall effect principle. The unit includes a Hall element, an amplifier, and protection circuits. The Hall element senses the magnetic field generated by a magnet. This magnetic field is composed of multiple components, including a field strength, a polarity, and direction. With the magnet in proximity, the Hall voltage is generated. The integrated amplifier amplifies the Hall voltage signal and generates a logic output.The protection circuits and error corrections are designed to reduce the influence of external temperature changes, heating of the device, and other sources of interference. Furthermore, due to the integrated Schmitt trigger, signal accuracy and response time are improved. The CMOS output is enables a wide range of operating voltage and can withstand up to 1A loads.

Benefits

The AD520-00E offers various benefits such as low stress, low power consumption, low noise, and high accuracy. The device does not require signal conditioning, making it suitable for many applications. Moreover, the integrated Schmitt trigger provides improved signal timings and increased accuracy with minimal external components.The device is reliable and long-lasting, which makes it suitable for numerous applications. The solid-state design of the unit prolongs its life span, even under tough conditions. Additionally, the small form factor allows it to be used in small environments, such as on printed circuit boards.

Conclusion

The AD520-00E is a magnetic sensor - switch (solid state) from the AD520-series from Allegro MicroSystems. It is used as a switch in various applications, such as motor position sensing, appliance and pin placement detection, and document and product sensing. The working principle of the unit is based on the Hall effect principle and, with the integrated Schmitt trigger, it provides improved signal timings and accuracy.The AD520-00E offers many benefits, such as low stress, low noise, and high accuracy. The device is reliable and long-lasting, and the small form factor allows it to be used in small spaces. It is a suitable choice for a wide range of applications.

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