Hall-effect latches & switches
Low power, high sensitivity and cost-optimized magnetic sensing solutions for detecting the state, proximity and motion of objects within your system
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Our digital Hall-effect latches and switches provide low power, multi-axis, high voltage and speed, and programmable solutions for a wide variety of position sensing applications. Whether wanting to detect if something has opened or closed, detect when an external object is close to your system, or perform complex motor commutation, our Hall-effect latches and switches provide high-precision, contactless position measurements that will meet your system’s demands.
Select by type
Device type
Choose between one-dimensional or two-dimensional latches and unipolar (reacts to one magnetic pole) or omnipolar (reacts to both poles) switches.
Supply voltage & low power
Find low and high voltage supply range and low power options to address your application needs.
Featured Hall-effect latches & switches
Why choose our Hall-Effect latches & switches
Find the right product for your design
Explore our large and diversified portfolio of latches and switches covering unipolar switches, omnipolar switches, and 1D/2D latches to meet your system’s demands.
Quality and performance
Our Hall-effect latches and switches offer a multitude of features such as wide voltage ranges, low power, multi-axis, high speed and performance, and programmability to fit your system requirements.
Customer support
We offer resources such as EVMs, software, application notes, reference designs, simulation tools (TIMSS) and online support such as TI E2E to help you incorporate our sensors into your product.
Perfect your design with TI’s magnetic sensing latches and switches
Reduce system cost and extend battery life with our low-power latches and switches
Benefits:
- Extend system battery lifespan
- Reduce cost with extended battery life
- Increase overall system efficiency
- Reduce heat generation
Application brief
Hall-Effect Sensors in Low-Power Applications (Rev. B)
Learn how Hall-effect sensors can provide solutions for low-power applications.
Application brief
Designing With Hall-Effect Sensors for Rotary Flow Meter Applications
Learn how Hall-effect sensors can be used for rotary flow meter applications.
Application brief
How Hall-Effect Sensors are Used in Electronic Smart Locks (Rev. B)
Learn how to use low-power switches in electronic smart locks.
Featured products for Low power
High voltage latches and switches ensure safety and compatibility in systems
Benefits:
- Operates with certain sensors that have a maximum supply of 38V in automotive, grid infrastructure and factory automation systems.
- Reverse polarity, overtemperature and short-circuit protection features.
- Useful in motor commutation applications.
Application brief
Brushless DC Motor Commutation Using Hall-Effect Sensors (Rev. B)
Learn how to use Hall-effect sensors for brushless-DC motor commutation.
Application brief
Designing With Hall-Effect Sensors for Rotary Flow Meter Applications
Learn how to use Hall-effect sensors for rotary flow meter applications.
Application brief
Hall-Effect Sensors in Vacuum Robots
Learn how to use Hall-effect sensors for vacuum robot applications.
Featured products for High voltage
Increase board space and reduce overall system cost by utilizing our multiaxis 2D latches
Benefits:
- Using only one integrated circuit (IC) reduces board space and costs.
- Greater placement flexibility allows for different printed circuit board (PCB) orientations and reduces the amount of space taken up on the PCB.
- 2D latches can provide both speed and direction information using only one IC.
- 2D latches provide added resolution which reduces reliance on gear ratios for smaller mechanical increments.
- Lower magnetic operate point (BOP) and magnetic release point (BRP) thresholds enable greater placement flexibility relative to the magnet.
Application note
TMAG511x 2D Latch Benefits
Learn about the benefits of using 2D latches for various applications
Application brief
Incremental Rotary Encoders (Rev. B)
Learn about different ways to use Hall-Effect sensors to implement rotary encoding in your designs
Application note
Hall Sensor and Magnet Selection for Auto Body Motor Module Design
Learn how different Hall-effect sensors and magnets can monitor automotive motors.
Featured products for Multiaxis
Get high accuracy, reliability, resolution and speed with our Hall-effect latches
Benefits:
- The ability to sense changes in position quickly enables more precise magnetic field measurements.
- Consistent and accurate positional data.
- The combination of low jitter and low propagation delay can help increase power efficiency and reduce parasitic system-level noise.
- Suitable in high-speed applications or applications that have a high magnetic pole count.
Application brief
Brushless DC Motor Commutation Using Hall-Effect Sensors (Rev. B)
Learn about how Hall-Effect Sensors can be used for brushless DC motor commutation
APPLICATION BRIEF
Designing with Hall-effect sensors: BLDC motor commutation
Learn how to use Hall-effect sensors for brushless-DC motor commutation.
Application note
Design Considerations & Measurement Results, Mechanical Hall-Effect Flow Meters
Learn about how high speed and performance Hall-Effect sensors can be used in mechanical flow meters
High speed and performance
Achieve greater design flexibility by using a programmable Hall-effect switch
Benefits:
- Applying a voltage or connecting a resistor to the ADJ pin enables programming of the operational point (BOP) from 2mT to 15mT.
- This adjustable BOP offers design flexibility, device reuse across multiple platforms, easy last-minute design changes, simple and quick prototyping, and reduced simulation times.
- Connecting a digital-to-analog converter to the ADJ pin instead of an external resistor creates a software-programmable Hall-effect switch.
Application note
Implementing Programmability and Diagnostics With the TMAG5328 Resistor
Learn how to implement the programmability and diagnostic features of the TMAG5328.
EVM User's guide
TMAG5328 Evaluation Module User's Guide (Rev. A)
This user's guide describes the characteristics, operation and use of the TMAG5328 evaluation module.
Programmability
Technical resources
VIDEO SERIES
TI Precision Labs - Magnetic Sensors
Check out our comprehensive TI Precision Labs curriculum for Hall-effect latches and switches.
Application brief
Transition Detection Using Hall-Effect Sensors (Rev. A)
Read about key design considerations when selecting a magnetic threshold for your system.
Application brief
Incremental Rotary Encoders (Rev. B)
Learn about different ways to use Hall-effect sensors to implement rotary encoding in your designs.
Discover featured applications
Appliances
Optimize cost, performance, power and reliability with Hall-effect latches and switches
Optimize cost, performance, power and reliability with Hall-effect latches and switches
In appliances, you'll find our latches and switches used for on and off detection, liquid level sensing, knob and dial selection, brushless-DC motor commutation, and rotary encoding in applications such as cordless power tools, vacuum robots, washers and dryers, and refrigerators.
Benefits:
- Less than 1µA of current consumption extends battery life.
- 60kHz bandwidth enables fast and accurate sensor readings.
- Cost-optimized solutions reduce overall system expenses.
- Rigorous testing protocols help ensure reliable sensing.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
PRODUCTS
HARDWARE DEVELOPMENT
- HALL-ADAPTER-EVM – Hall sensor breakout adapter evaluation module
- HALL-TRIGGER-EVM – Evaluation module for contactless, Hall-effect variable-speed trigger with external field protection
DESIGN TOOLS AND SIMULATION
- TI-MAGNETIC-SENSE-SIMULATOR – Magnetic simulation software that includes mechanical motion and sensor output
Building automation
Leverage low-power modes and optimize costs with Hall-effect latches and switches
Leverage low-power modes and optimize costs with Hall-effect latches and switches
In building automation, you'll find our Hall-effect latches and switches used for open and close detection, tamper detection, and absolute position sensing in applications such as smart locks, door and window sensors, smoke and heat detectors, and wireless security cameras.
Benefits:
- Less than 1µA of current consumption extends battery life.
- Cost-optimized solutions reduce overall system expenses.
- Low power increases system efficiency.
- Tamper detection includes the ability to detect permanent magnets.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
PRODUCTS
HARDWARE DEVELOPMENT
- HALL-ADAPTER-EVM – Hall sensor breakout adapter evaluation module
- HALL-HINGE-EVM – TMAG5231 evaluation module for Hall-effect hinge
DESIGN TOOLS AND SIMULATION
- TI-MAGNETIC-SENSE-SIMULATOR – Magnetic simulation software that includes mechanical motion and sensor output
BLDC motor commutation
Explore a full portfolio of Hall-effect latches, ranging from high-performance solutions with low jitter and propagation delay to general-purpose products used in high-volume applications.
Explore a full portfolio of Hall-effect latches, ranging from high-performance solutions with low jitter and propagation delay to general-purpose products used in high-volume applications.
Our Hall-effect latches provide the ability to commutate brushless-DC motor designs by providing position sensing feedback, allowing the microcontroller to maximize torque and power efficiency.
Benefits:
- The portfolio spans high-performance and value products for industrial and automotive applications.
- Various magnetic sensitivities and package types enable mechanical flexibility and placement.
- A breadth of bandwidths enable use in high sampling environments as well as low-power applications.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
REFERENCE DESIGNS
- TIDA-00919 – Single-Layered, Refrigerator Fan Reference Design Enabling High Efficiency Drive
- TIDA-00196 – 12V and 24V Brushless DC Outrunner Motor Reference Design
PRODUCTS
DESIGN TOOLS AND SIMULATION
- TI-MAGNETIC-SENSE-SIMULATOR – Magnetic simulation software that includes mechanical motion and sensor output