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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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.
New products
High-bandwidth (30-kHz), high-voltage (26 V) Hall-effect latch for low-cost applications
Approx. price (USD) 1ku | 0.105
Automotive low-power (10 Hz, 1 µA) low-voltage (down to 1.65 V) Hall-effect switch
Approx. price (USD) 1ku | 0.139
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
TI’s Hall-Effect latches and switches offer a multitude of features such as wide voltage ranges, low power, multi-axis, high speed & 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
Hall-Effect Sensors in Low-Power Applications (Rev. B)
Designing With Hall-Effect Sensors for Rotary Flow Meter Applications
How Hall-Effect Sensors are Used in Electronic Smart Locks
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.
Brushless DC Motor Commutation Using Hall-Effect Sensors (Rev. B)
Designing With Hall-Effect Sensors for Rotary Flow Meter Applications
Hall-Effect Sensors in Vacuum Robots
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.
TMAG511x 2D Latch Benefits
Incremental Rotary Encoders (Rev. B)
Hall Sensor and Magnet Selection for Auto Body Motor Module Design
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.
Brushless DC Motor Commutation Using Hall-Effect Sensors (Rev. B)
Designing with Hall-effect sensors: BLDC motor commutation
Design Considerations & Measurement Results, Mechanical Hall-Effect Flow Meters
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.
Implementing Programmability and Diagnostics With the TMAG5328 Resistor
TMAG5328 Evaluation Module User's Guide (Rev. A)
Technical resources
TI Precision Labs - Magnetic Sensors
Transition Detection Using Hall-Effect Sensors (Rev. A)
Incremental Rotary Encoders (Rev. B)
Discover featured applications
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
- 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
- Hall-Effect Sensors in Vacuum Robots – Application brief
- Brushless DC Motor Commutation Using Hall-Effect Sensors (Rev. B) – Application brief
- TI-MAGNETIC-SENSE-SIMULATOR – Magnetic simulation software that includes mechanical motion and sensor output
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
- HALL-ADAPTER-EVM – Hall sensor breakout adapter evaluation module
- HALL-HINGE-EVM – TMAG5231 evaluation module for Hall-effect hinge
- Position Sensing in Electronic Smart Locks Using Hall-Effect Sensors – Application note
- Understanding tamper detection sensors – Technical article
- TI-MAGNETIC-SENSE-SIMULATOR – Magnetic simulation software that includes mechanical motion and sensor output
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
- TIDA-00919 – Single-Layered, Refrigerator Fan Reference Design Enabling High Efficiency Drive
- TIDA-00196 – 12V and 24V Brushless DC Outrunner Motor Reference Design
- Brushless DC Motor Commutation Using Hall-Effect Sensors (Rev. B) – Application brief
- Introduction to Hall-Effect Sensors (Rev. B) – Product overview
- TI-MAGNETIC-SENSE-SIMULATOR – Magnetic simulation software that includes mechanical motion and sensor output