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WEBENCH® Tools/DRV5053: Analog Hall Effect sensor

Sandhya rani
Intellectual 270 points
Part Number: DRV5053
Other Parts Discussed in Thread: DRV5056, DRV5055

Tool/software: WEBENCH® Design Tools

We are building a gas level monitoring system and using an analog hall effect sensor for detecting the level.

For the test purpose, the following mechanism is used,

The magnetic flux density changes when the lever position goes up and down. 

We have tried measuring the magnetic flux density using DRV5053 but we are not getting many variations in the output voltage. The value range is between 0.97 to 1.028V. With this, we are unable to map the gas level.

Can anyone please suggest an analog Hall effect sensor for the above application.

  • 0
    TI__Mastermind 26195 points

    Hello Sandhya,

    Thank you for using the TI forum. The DRV5053 is a bipolar linear device, so if you are detecting only one magnetic pole (ie. south pole), then you would only be using about half of the sensors output range. If this is the case, you may want to use the DRV5056. This is a unidirectional device that will allow you to sensors whole output range if you are detecting only one magnetic pole.

    If in your system you need to react to either pole, then maybe you could use a different gain version of the DRV5053, or switch to the more accurate DRV5055 which is also a bipolar sensor.