Product details

Type Omnipolar switch Supply voltage (Vcc) (Min) (V) 1.65 Supply voltage (Vcc) (Max) (V) 5.5 Operate point (Max) (mT) 2.7, 3.8, 4, 50 Release point (Min) (mT) 0.3, 0.5, 1.2, 23.5 Output Push-pull output driver Operating temperature range (C) -40 to 125
Type Omnipolar switch Supply voltage (Vcc) (Min) (V) 1.65 Supply voltage (Vcc) (Max) (V) 5.5 Operate point (Max) (mT) 2.7, 3.8, 4, 50 Release point (Min) (mT) 0.3, 0.5, 1.2, 23.5 Output Push-pull output driver Operating temperature range (C) -40 to 125
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 X2SON (DMR) 4 2 mm² 1.4 x 1.1
  • Low power consumption:
    • 10-Hz versions: 1.3 µA at 3 V
    • 20-Hz versions: 2 µA at 3 V
    • 216-Hz versions: 16 µA at 3 V
  • 1.65-V to 5.5-V operating VCC range
  • Magnetic threshold option (typical BOP):
    • 1.8 mT with 0.6-mT hysteresis
    • 2.85 mT with 1.35-mT hysteresis
    • 3 mT with 0.8-mT hysteresis
    • 40 mT with 6.5-mT hysteresis
  • Omnipolar response
  • Push-pull output
  • Industry-standard package and pinout
    • SOT-23 package
    • X2SON package
  • Operating temperature range: –40°C to +125°C
  • Low power consumption:
    • 10-Hz versions: 1.3 µA at 3 V
    • 20-Hz versions: 2 µA at 3 V
    • 216-Hz versions: 16 µA at 3 V
  • 1.65-V to 5.5-V operating VCC range
  • Magnetic threshold option (typical BOP):
    • 1.8 mT with 0.6-mT hysteresis
    • 2.85 mT with 1.35-mT hysteresis
    • 3 mT with 0.8-mT hysteresis
    • 40 mT with 6.5-mT hysteresis
  • Omnipolar response
  • Push-pull output
  • Industry-standard package and pinout
    • SOT-23 package
    • X2SON package
  • Operating temperature range: –40°C to +125°C

The TMAG5231 is a 2nd-generation, low-power Hall-effect switch sensor, specifically designed to optimize the total system cost for compact, battery-operated consumer and industrial applications.

When the applied magnetic flux density exceeds the operating point (BOP) threshold, the device outputs a low voltage. The output stays low until the flux density decreases to less than the release point (BRP), and then the device outputs a high voltage. Omnipolar magnetic response allows the output to be sensitive to both north and south magnetic fields.

The TMAG5231 is able to operate at very low current consumption. To achieve 2 µA of current consumption the device is internally power cycled at a 20-Hz rate.

The TMAG5231 is available in the industry-standard package and pinout SOT-23 as well as X2SON.

The device operates at a VCC range of 1.65 V to 5.5 V as well as an extended temperature range of –40°C to 125°C.

The TMAG5231 is a 2nd-generation, low-power Hall-effect switch sensor, specifically designed to optimize the total system cost for compact, battery-operated consumer and industrial applications.

When the applied magnetic flux density exceeds the operating point (BOP) threshold, the device outputs a low voltage. The output stays low until the flux density decreases to less than the release point (BRP), and then the device outputs a high voltage. Omnipolar magnetic response allows the output to be sensitive to both north and south magnetic fields.

The TMAG5231 is able to operate at very low current consumption. To achieve 2 µA of current consumption the device is internally power cycled at a 20-Hz rate.

The TMAG5231 is available in the industry-standard package and pinout SOT-23 as well as X2SON.

The device operates at a VCC range of 1.65 V to 5.5 V as well as an extended temperature range of –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet TMAG5231 Low-Power, Hall Effect Switch datasheet (Rev. D) PDF | HTML 06 Sep 2022
Application note Transition Detection Using Hall-Effect Sensors (Rev. A) PDF | HTML 09 Jun 2022
More literature Introduction to Hall-Effect Sensors PDF | HTML 29 Mar 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 Hall-Effect Sensors in Vacuum Robots PDF | HTML 22 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 Multi-State Position Selection Using Hall-Effect Sensors PDF | HTML 13 Jan 2022
Application note Two-State Selector Using Hall-Effect Sensors PDF | HTML 01 Dec 2021
User guide HALL-ADAPTER-EVM User's Guide (Rev. C) PDF | HTML 21 Oct 2021
Application note Hall-Effect Sensors in Low-Power Applications (Rev. B) PDF | HTML 15 Oct 2021
Application note Reed Switch Replacement with TI's Hall-effect and Linear 3D Hall-effect Sensors PDF | HTML 13 Oct 2021
Application note Limit Detection for Tamper and End-of-Travel Detection Using Hall-Effect Sensors (Rev. A) PDF | HTML 24 Aug 2021
Application note Designing Single and Multiple Position Switches Using TI Hall Effect Sensors 26 Sep 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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
Not available on TI.com
Evaluation board

HALL-HINGE-EVM — TMAG5231 evaluation module for Hall-effect hinge

HALL-HINGE-EVM is designed with accompanying 3D-printed structures and magnet to evaluate TMAG5231B1 in a hinge-lid closure apparatus. This function is commonly used in laptop lid closures and other lid and door detection applications.

The design is compatible with the HALL-ADAPTER-EVM to allow (...)

User guide: PDF | HTML
Not available on TI.com
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
X2SON (DMR) 4 View options

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