By using the hall effect in a fully integrated monolithic ic it is possible to measure magnetic field strength and create a vast array of hall effect integrated circuits for many different applications.
Hall sensor ic 4 pin.
The a3423 is available in a 4 pin sip and a plastic 8 pin soic surface mount package.
Out of the total 4 pins 2 pins are connected to the constant voltage source and other two are connected to the voltmeter.
The arrangement of the connection is shown in figure below.
The ss39et ss49e ss59et linear hall effect sensor ics are small versatile devices that are operated by the magnetic field from a permanent magnet or an electromagnet.
But if one connects the sensor as follows circuit1.
The a3423 has integrated protection against transients on the supply and output pins and short circuit protection on all outputs.
Gnd one can only measure the positive voltage at the pin 2.
This is perfect because the arduino supplies 5v of power right in between this range.
When the magnetic field is absent the measured voltage across the sheet is negligible.
The a1262 2d dual channel hall effect sensor ic is offered in a 5 pin sot23w surface mount package as well as a 4 pin sip through hole package.
Allegro programming provides a sensitivity of 1 2 and zero amp output voltage offset of only 5mv over the operating temperature range of 40c to 150c.
Inspired to innovate allegro microsystems is redefining the future of sensing and power.
How to use hall effect sensor.
The linear sourcing output voltage is set by the supply voltage.
Positive input voltage v for instance 5vdc.
The continuous time nature of the hall elements delivers a fast start up of the sensor and low noise.
It is also mandatory to use a pull up resistor as shown below.
This sensor is a programmable linear hall effect current sensor ic that has been designed to achieve industry leading accuracy and resolution without compromising bandwidth.
A3144 is a digital output hall sensor meaning if it detects a magnet the output will go low else the output will remain high.
There are two main types of hall effect sensor one which gives an analog output and the other which gives a digital output.
Every one of these highly integrated devices contain a voltage regulator supporting a wide operating voltage range as well as hall sensing element and a current sink configured output driver all in a single compact low profile package.
The ic has 3 pins 2 for the power supply and 1 for the analog voltage output.
The mlx92242 is an advanced hall effect switch latch ic.
The hall voltage v h can be positive and negative.
The a1302 hall effect sensor is an ic that uses 4 5 6v as input for operation.
The above figure shows the hall effect sensor ic of 4 pin package.
