Product details

Type Unipolar switch Supply voltage (Vcc) (Min) (V) 2.5 Supply voltage (Vcc) (Max) (V) 5.5 Operate point (Max) (mT) 4.4, 12.5, 22.7 Release point (Min) (mT) 0.4, 3.6, 6.7 Output Open drain Operating temperature range (C) -40 to 125
Type Unipolar switch Supply voltage (Vcc) (Min) (V) 2.5 Supply voltage (Vcc) (Max) (V) 5.5 Operate point (Max) (mT) 4.4, 12.5, 22.7 Release point (Min) (mT) 0.4, 3.6, 6.7 Output Open drain Operating temperature range (C) -40 to 125
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37
  • Digital Unipolar-Switch Hall Sensor
  • 2.5-V to 5.5-V Operating VCC Range
  • Magnetic Sensitivity Options (BOP, BRP):
    • DRV5021A1: 2.9 mT, 1.8 mT
    • DRV5021A2: 9.2 mT, 7.0 mT
    • DRV5021A3: 17.9 mT, 14.1 mT
  • Fast 30-kHz Sensing Bandwidth
  • Open-Drain Output Capable of 20 mA
  • Optimized Low-Voltage Architecture
  • Integrated Hysteresis to Enhance Noise Immunity
  • Operating Temperature Range: –40°C to +125°C
  • Standard Industry Package:
    • Surface-Mount SOT-23
  • Digital Unipolar-Switch Hall Sensor
  • 2.5-V to 5.5-V Operating VCC Range
  • Magnetic Sensitivity Options (BOP, BRP):
    • DRV5021A1: 2.9 mT, 1.8 mT
    • DRV5021A2: 9.2 mT, 7.0 mT
    • DRV5021A3: 17.9 mT, 14.1 mT
  • Fast 30-kHz Sensing Bandwidth
  • Open-Drain Output Capable of 20 mA
  • Optimized Low-Voltage Architecture
  • Integrated Hysteresis to Enhance Noise Immunity
  • Operating Temperature Range: –40°C to +125°C
  • Standard Industry Package:
    • Surface-Mount SOT-23

The DRV5021 device is a low-voltage, digital-switch, Hall effect sensor for high-speed applications. Operating from a 2.5-V to 5.5-V power supply, the device senses magnetic flux density, and gives a digital output based on predefined magnetic thresholds.

This device senses magnetic fields perpendicular to the face of the package. When the applied magnetic flux density exceeds the magnetic operate point (BOP) threshold, the open-drain output of the device drives a low voltage. When the flux density decreases to less than the magnetic release point (BRP) threshold, the output goes to high impedance. The hysteresis resulting from the separation of BOP and BRP helps prevent output errors caused by input noise. This configuration makes system designs more robust against noise interference.

The device operates consistently across a wide ambient temperature range of –40°C to +125°C.

 

 

 

 

The DRV5021 device is a low-voltage, digital-switch, Hall effect sensor for high-speed applications. Operating from a 2.5-V to 5.5-V power supply, the device senses magnetic flux density, and gives a digital output based on predefined magnetic thresholds.

This device senses magnetic fields perpendicular to the face of the package. When the applied magnetic flux density exceeds the magnetic operate point (BOP) threshold, the open-drain output of the device drives a low voltage. When the flux density decreases to less than the magnetic release point (BRP) threshold, the output goes to high impedance. The hysteresis resulting from the separation of BOP and BRP helps prevent output errors caused by input noise. This configuration makes system designs more robust against noise interference.

The device operates consistently across a wide ambient temperature range of –40°C to +125°C.

 

 

 

 

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Technical documentation

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Type Title Date
* Data sheet DRV5021 Low-Voltage, Unipolar, Digital-Switch Hall Effect Sensor datasheet PDF | HTML 06 Dec 2018
Application note Position Sensing in Electronic Smart Locks Using Hall-Effect Sensors PDF | HTML 30 Jun 2022
Application note Transition Detection Using Hall-Effect Sensors (Rev. A) PDF | HTML 09 Jun 2022
Application note Design Considerations & Measurement Results, Mechanical Hall-Effect Flow Meters PDF | HTML 23 Mar 2022
Application note How Hall-Effect Sensors are Used in Electronic Smart Locks PDF | HTML 23 Mar 2022
Application note Designing With Hall-Effect Sensors for Rotary Flow Meter Applications PDF | HTML 07 Mar 2022
Application note HMI Rocker Switch With Hall-Effect Switches PDF | HTML 21 Jan 2022
Application note Two-State Selector Using Hall-Effect Sensors PDF | HTML 01 Dec 2021

Design & development

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Evaluation board

HALL-ADAPTER-EVM — Hall sensor breakout adapter evaluation module

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 (...)
User guide: PDF | HTML
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Calculation tool

HALL-PROXIMITY-DESIGN — Magnetic sensing proximity tool

HALL-PROXIMITY-DESIGN is a software tool that facilitates rapid iterative design for magnet and Hall-effect sensor systems.
Calculation tool

Magnetic Sensing Proximity Tool (Rev. F)

SLYR071F.ZIP (2180 KB)
Package Pins Download
SOT-23 (DBZ) 3 View options

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