DRV5032: FD Can be used to create a quadrature output for speed sensors?

CARLOS V

Part Number: DRV5032

I am looking for a Hall-effect IC switch that will be used in a back-application (I guess this IC switch must be unipolar to be used with a permanent magnet and a ferrous gear) that has two square outputs shifted 90° in order to measure rotational speed and direction. I know this signal type is called as quadrature output.

I can see that this DRV5032FD has two outputs but I am not sure whether one output will respond to positive field and second output to negative field. If this is correct, does TI have an IC with quadrature output?

Thank you and regards.

Carlos Vargas / Electrical Engineer 1

over 4 years ago

0 Scott Bryson over 4 years ago

TI__Genius 15290 points

Carlos,

Your understanding of DRV5032 is correct. In the package variant with 2 outputs, one output responds to positive field while the other output will respond to negative field. This is not the same as the quadrature measurement you are looking for. To achieve both speed and direction with our current portfolio of products you would need two sensors.

Details how to achieve this with two sensors can be found at the links below

http://www.ti.com/lit/an/sboa200/sboa200.pdf

https://training.ti.com/ti-precision-labs-magnetic-sensors-using-hall-effect-position-sensors-rotary-encoding-applications

0 Scott Bryson over 3 years ago in reply to Scott Bryson

TI__Genius 15290 points

Carlos,

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DRV5032: FD Can be used to create a quadrature output for speed sensors?