Automotive linear hall effect sensor with digital PWM output


Product details


Type Ratiometric PWM output Supply voltage (Vcc) (Min) (V) 3 Supply voltage (Vcc) (Max) (V) 5.5 Accuracy (%) 6 Rating Automotive Output 8 %D to 92 %D Operating temperature range (C) -40 to 150 open-in-new Find other Linear Hall-effect sensors

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 open-in-new Find other Linear Hall-effect sensors


  • AEC-Q100 qualified for automotive applications
    • Temperature grade 0: –40°C to 150°C
  • PWM-output linear Hall effect magnetic sensor
  • Operates from 3.3-V and 5-V power supplies
  • 2-kHz clock output with 50% quiescent duty cycle
  • Magnetic sensitivity options (at VCC = 5 V):
    • A1: 2%D/mT, ±21-mT range
    • A2: 1%D/mT, ±42-mT range
    • A3: 0.5%D/mT, ±84-mT range
    • A4: 0.25%D/mT, ±168-mT range
  • Open-drain output with 20-mA sink capability
  • Compensation for magnet temperature drift
  • Industry standard package:
    • Surface-mount SOT-23

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The DRV5057-Q1 is a linear Hall effect sensor that responds proportionally to magnetic flux density. The device can be used for accurate position sensing in a wide range of applications.

The device operates from 3.3-V or 5-V power supplies. When no magnetic field is present, the output produces a clock with a 50% duty cycle. The output duty cycle changes linearly with the applied magnetic flux density, and four sensitivity options maximize the output dynamic range based on the required sensing range. North and south magnetic poles produce unique outputs. The typical pulse-width modulation (PWM) carrier frequency is 2 kHz.

Magnetic flux perpendicular to the top of the package is sensed, and the two package options provide different sensing directions.

Because the PWM signal is based on edge-to-edge timing, signal integrity is maintained in the presence of voltage noise or ground potential mismatch. This signal is suitable for distance transmission in noisy environments, and the always-present clock allows the system controller to confirm there are good interconnects. Additionally, the device features magnet temperature compensation to counteract how magnets drift for linear performance across a wide –40°C to +150°C temperature range.


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Technical documentation

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Type Title Date
* Data sheet DRV5057-Q1 Automotive Linear Hall Effect Sensor With PWM Output datasheet Aug. 13, 2019
Application note Absolute Angle Measurements for Rotational Motion Using Hall-Effect Sensors Mar. 30, 2021
Application note Linear Hall Effect Sensor Array Design Oct. 08, 2020
Application note Linear Hall Effect Sensor Angle Measurement Theory, Implementation (Rev. A) Aug. 23, 2018
Application note Overview Using Linear Hall Effect Sensors to Measure (Rev. A) Aug. 22, 2018

Design & development

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Hardware development

document-generic User guide
TheDRV505x is a linear Hall Effect magnetic-sense solution that provides ease of use and high performance. The DRV5055-5057EVM is intended to provide basic functional evaluation of this device family. The fixture layout is not intended to be a model for the target circuit, nor is it laid out for (...)
  • Evaluation of all gain options for the DRV5055, DRV5056, and DRV5057
  • Ease of access to device pins with test points
  • Capability to easily read Voltage, mT, and microcontroller ADC memory values from and LCD
  • Ability to toggle between devices through the simple press of pushbutton (S1)
document-generic User guide
Speed up your switch, latch and linear Hall sensor prototyping and testing with the HALL-ADAPTER-EVM, which provides a fast, easy and inexpensive way to interface with small ICs. You can connect any supported Hall sensor using the included Samtec terminal strips or wire them directly to existing (...)
  • Evaluation of most Hall sensor devices from TI, including SOT-23, TO-92, X2SON, and more.
  • Standard breakout footprint for easy breadboard prototyping.
  • Magnet included.

CAD/CAE symbols

Package Pins Download
SOT-23 (DBZ) 3 View options

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