A3144 Hall Effect Sensor Switch

1) The principle of hall-effect and is used to detect magnets.
2) Each side of the sensor can detect one particular pole.
3) It can also be easily interfaced with a microcontroller since it works on transistor logic.
4) Resistant to Physical Stress.

Specifications:

• Digital Output Hall-effect sensor.
• Operating voltage: 4.5V to 28V (typically 5V).
• Output Current: 25mA.
• Can be used to detect both the poles of a magnet.
• Output voltage is equal to operating voltage.
• Operating temperature: -40°C to 85°C.
• Turn on and Turn off time is 2uS each.
• Inbuilt reverse polarity protection.
• Suitable for Automotive and Industrial Applications.

Where To Use The HALL-EFFECT SENSOR:

A hall-effect sensor as then name suggests works with the principle of hall-effect and is used to detect magnets. Each side of the sensor can detect one particular pole. It can also be easily interfaced with a microcontroller since it works on transistor logic.

So if you are looking for a sensor to detect magnet for measuring the speed of a moving object or just to detect objects then this sensor might be the perfect choice for your project.

How To Use The HALL-EFFECT SENSOR:

There are two main types of hall-effect sensors, one which gives an analog output and the other which gives a digital output. A3144

 is a digital output hall sensor, meaning if it detects a magnet the output will go low else the output will remain high. It is also mandatory to use a pull-up resistor as shown below to keep the output high when no magnet is detected.

Applications:

• Used to detect magnets(objects) in automation systems.
• Used in magnetic door alarm system.
• Measure speed in automobiles.
• Detect the pole of magnets in BLDC motors.

Package Include:

• 5 X  A3144 Hall Effect Sensor Switch.