Sensors

Magnetic sensors – Support & training

What are Hall effect sensors?

Hall effect latches & switches

Hall effect switches and latches indicate the presence or absence of magnetic fields.

  • Digital output
  • Wide voltage and temperature range
  • Ultra-low power options

Linear Hall effect sensors

Linear Hall effect sensors measure magnitude of magnetic fields.

  • Analog and PWM output options
  • Unipolar option doubles voltage swing
  • Flexible Vcc, package, and sensitivity options

Latch functionality

Unipolar switch functionality

Hall effect latches require alternating north and south magnetic poles to toggle. They are used in rotary applications, whether for BLDC motor sensors or incremental encoding.

Hall effect switches indicate if a magnet is close by, based on a predefined magnetic threshold. TI offers both omnipolar and unipolar Hall effect switches.

Linear analog output

Linear PWM output

Linear hall effect sensors output a signal that's proportional to magnetic flux density for precise position measurement.

Technical Article

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Application notes

Browse Hall effect sensor use cases. Each application note includes problem analysis, implementation options and related products.

Application notes
Download application notes
Devices
Using Linear Hall Effect Sensors to Measure Angle PDF

DRV5055

Incremental Rotary Encoder Design Considerations PDF

DRV5012

DRV5013

Power Gating Systems with Magnetic Sensors PDF

DRV5012

DRV5032