Magnetic sensors
Low-power highly accurate cost-optimized magnetic solutions for real-time motion monitoring, system state detection and human control detection
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Our magnetic sensing portfolio consists of switches, latches, and single and multi-axis linear and angle sensors that offer high performance, low power and cost optimization in position- and current-sensing applications. These sensors have capabilities such as open and close or on and off detection, rotary encoding, angle sensing, and linear displacement and low-drift current measurement.
Why choose our magnetic position sensors?
Find the right product for your design
Our magnetic position sensors span simple solutions, such as one switch for open and close detection, to multiple linear sensors that can make a system tamperproof.
Enhanced quality and performance
Our magnetic position sensors offer sought-after features such as high accuracy, sensitivity, voltage and bandwidth, along with low power and various packaging options at a cost-optimized price.
Complete customer support
Our support resources include evaluation modules, software, application notes, reference designs, training, simulation tools (TIMSS) and online support.
Magnetic sensing technologies
Use TIMSS to quickly simulate magnetic fields to determine the best magnet and device placement.
Benefits:
- Quickly simulate magnetic fields and emulate device behavior to expedite the design process.
- Fast and easy to use, which saves weeks of design time.
- Enables simulations across a range of system tolerances to reduce the number of system revisions.
- More than 60 times faster than competing simulation software.
- 400 device variants available, as well as multiple motion and magnet types.
- No coding necessary.
User guide
Texas Instruments' Magnetic Sense Simulator User's Guide
Learn the features and functions of our Magnetic Sense Simulator (TIMSS) and the methods and approaches that aid in successful simulation configurations.
Application brief
Introduction to TI Magnetic Sense Simulator Features
This application brief introduces the supported functions and modes accessible within TIMSS. These functions and modes include motion types, magnet selection, and advanced functions like parametric sweeps and design comparisons.
RESOURCE
TI-MAGNETIC-SENSE-SIMULATOR
The TI-MAGNETIC-SENSE-SIMULATOR (TIMSS) webtool estimates magnetic flux density and TI magnetic sensor outputs for magnetic position sensing systems. The tool has device emulation and supports various magnet shapes...
Featured products for TIMSS
Improve placement flexibility by detecting horizontal magnetic fields in relation to the package.
Benefits
- Sensor placement flexibility helps save system cost and space by enabling designers to place magnets in orientations not possible with standard orthogonal sensing solutions.
- Vertical sensors built into the silicon can detect magnetic fields parallel to the surface or horizontally from the side of the package in either the X or Y direction.
- Sensor points out the side of package.
- Good sensitivity and precision at a competitive price point.
Video
Precision labs series: Magnetic sensors
This magnetic sensor curriculum contains short training videos that cover the basics of magnetic sensors, key specifications for designing, tips for Hall applications and more!
Application brief
Sensing Magnetic Fields In-Plane Versus Out-of-Plane (Rev. C)
Learn about the differences of sensing magnetic fields in-plane versus out-of-plane.
Technical article
6 more myths about Hall-effect sensors
Learn about Hall-Effect Sensor myths including that only TMR sensors can take in-plane measurements.
Featured products for In-Plane
Achieve fast, precise and accurate angle sensing with anisotropic magnetoresistance (AMR) sensors.
Benefits
- Enables highly accurate (0.1 degree) angle sensing to achieve higher torque and efficiency.
- Provides wide operating magnetic field range (20mT-1T).
- TMAG6180-Q1 contains integrated Hall-Effect sensors for 360-degree functionality while TMAG6181-Q1 features an integrated turns counter to keep track of the number of rotations.
- Works in saturation which allows a lower-cost ferrite magnet to be used instead of Neodymium.
- Has no hysteresis or orthogonality error along with minimal noise.
Application brief
eBike Position Sensor Functions
Learn about the different ways that position sensors can be used in e-Bike applications.
RESOURCE
TMAG6180-6181 evaluation module
Evaluate the performance of our AMR sensors for rotary position sensing applications.
Technical article
Designing a Position Sensing System With an AMR Angle Sensor
Learn how to incorporate AMR angle sensors into position sensing systems.
Featured products for AMR
TMAG6180-Q1ACTIVE
Automotive high-precision analog AMR angle sensor with 360° angle range
TMAG6181-Q1ACTIVE
Automotive high-precision analog AMR angle sensor with integrated turns
counter
Ensure system safety and reduce risk with TI Functional Safety-Compliant magnetic sensors.
Benefits
- Meets functional safety standards like TI QRAS AP00210 new product development process, ISO26262 and IEC61508.
- ASIL B to ASIL D systemic capability with diagnostics to detect fault and redundancy features for improved safety.
- Ability to detect failure in the integrity of sensing paths and offer a robust reporting mechanism to the microcontroller.
- Important for safety critical systems like Electric Power Steering (EPS), Electric Vehicle (EV) and Hybrid-Electric Vehicle (HEV) inverter systems, and industrial motor drive applications.
- Diagnostics provide important information about device status such as errors in communication or problems with the analog front end (AFE).
White paper
Auto Functional Safety and How TI is Helping Customers W/ High-Precision Sensors
This article explores the concept of automotive functional safety, why functional safety is important, and the role that TI plays in making sure that the vehicles we drive are safe.
Functional safety at TI
Learn more about functional safety at TI on our functional safety webpage.
Featured products for Functional safety/Diagnostics
TMAG5173-Q1ACTIVE
Automotive, high-precision, linear 3D Hall-effect sensor with I²C interface
TMAG5170-Q1ACTIVE
Automotive, high-precision linear 3D Hall-effect sensor with serial peripheral interface
TMAG5170D-Q1ACTIVE
Automotive, high-precision, 3D linear Hall-effect dual-die sensor with SPI interface
Reduce system cost and extend battery life by utilizing our magnetic sensors.
Benefits
- Extend system battery lifespan.
- Reduced maintenance cost due to extended battery life.
- Increased overall system efficiency.
- Offers low power modes such as sleep and deep sleep mode to reduce current consumption when the device is not in use.
- Includes wake up and sleep mode to reduce the sensors active time by cyclically checking its environment for new data.
Application note
Low Power Design Using Hall-Effect Sensors (Rev. A)
Explore the various ways to optimize Hall-effect sensor power usage while not compromising on the user experience.
Application brief
How Hall-Effect Sensors are Used in Electronic Smart Locks (Rev. B)
Learn how low power switches can be used in electronic smart locks.
Application brief
Hall-Effect Sensors in Low-Power Applications (Rev. B)
Learn about how Hall-effect sensors can provide solutions for low power applications.
Featured products for Low power
Technical resources
Technical article
What is a Hall-effect sensor?
Learn about the benefits of Hall-effect sensors and how they can be used in your systems.
VIDEO SERIES
TI Precision Labs - Magnetic Sensors
Check out our comprehensive TI Precision Labs curriculum for magnetic sensors.
Technical article
How to select the right current sense technology for your high-voltage system
In systems that incorporate high-voltage domains, signal and power isolation can help protect people and critical circuits from high-voltage AC or DC power sources and loads.
Featured applications
Appliances
Optimize power, performance, cost and size with magnetic position sensors for appliances
Optimize power, performance, cost and size with magnetic position sensors for appliances
In appliance designs, you can implement our magnetic position sensors to perform functions such as obstacle avoidance, motor commutation, level sensing, open and close detection, and knob selection in applications that include vacuum robots, power tools, washing machines, refrigerators, cooktops and robotic lawn mowers.
Benefits:
- Less than 1µA of current consumption.
- Fast and accurate sensor readings with up to 60kHz bandwidth.
- Cost-optimized solutions.
- Ultra-small package options.
- Built-in coordinate rotation digital computer enables fast, accurate and precise angle calculations.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
PRODUCTS
HARDWARE DEVELOPMENT
- DRV5055-5057EVM – DRV5055, DRV5056 and DRV5057 linear Hall effect sensor evaluation module
- HALL-ADAPTER-EVM – Hall sensor breakout adapter evaluation module
Leverage low-power modes, optimize cost, and reduce size in your building automation designs
Leverage low-power modes, optimize cost, and reduce size in your building automation designs
In building automation, our magnetic position sensors perform functions such as open and close detection, tamper detection, and absolute position sensing in applications including smart locks, door and window sensors, and smoke and heat detectors.
Benefits:
- Less than 1µA of current consumption helps extend battery life.
- Ultra-small package options for space constrained applications.
- Built-in coordinate rotation digital computer enables fast, accurate and precise angle calculations.
- Detects the presence, strength and proximity of external magnetic fields to help prevent tampering.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
PRODUCTS
HARDWARE DEVELOPMENT
- DRV5055-5057EVM – DRV5055, DRV5056 and DRV5057 linear Hall effect sensor evaluation module
- HALL-ADAPTER-EVM – Hall sensor breakout adapter evaluation module
DESIGN TOOLS AND SIMULATION
- TI-MAGNETIC-SENSE-SIMULATOR – Magnetic simulation software that includes mechanical motion and sensor output
Supplying magnetic sensors for all of your factory automation designs including robotics, transport systems, position sensors, proximity switches and many more applications
Supplying magnetic sensors for all of your factory automation designs including robotics, transport systems, position sensors, proximity switches and many more applications
In factory automation and control, our magnetic position sensors enable precise object detection and distance measurements, high-resolution angular (robotic arms) and slide-by-motion (linear motor transportation systems).
Benefits:
- High resolution, low latency (2µs) angle sensing using linear and angle sensors.
- Various power modes, including wakeup and sleep on many 3D linear sensors, help conserve power.
- Less than 1µA of current consumption on various switched devices.
- Ultra-small packages for space-constrained applications such as proximity and position sensors.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
REFERENCE DESIGNS
- TIDA-060045 – Accurate low-latency linear position sense reference design with quad 3D Hall-effect sensors
- TIDA-060040 – Absolute angle encoder reference design with Hall-effect sensors for precise motor position control
PRODUCTS
- TMAG5170 – High-precision linear 3D Hall-effect sensor with serial peripheral interface
- TMAG6180-Q1 – Automotive high-precision analog AMR angle sensor with 360° angle range
HARDWARE DEVELOPMENT
- TMAG6180-6181EVM – TMAG6180 and TMAG6181 evaluation module with differential sine and cosine analog outputs
- TMAG5170UEVM – TMAG5170 evaluation module
Design & development resources
Simulation tool
Magnetic simulation software that includes mechanical motion and sensor output
The TI-MAGNETIC-SENSE-SIMULATOR (TIMSS) webtool estimates magnetic flux density and TI magnetic sensor outputs for magnetic position sensing systems. Select from our portfolio of magnetic sensors to thoroughly emulate electro-mechanical performance of your design. The tool supports various magnet (...)
Design tool
LDC507x design tool for PCB sensors to estimate motor position
The LDC5072X design tool is a powerful resource to accelerate the design and implementation of inductive PCB sensors for monitoring motor position with the LDC5072-Q1. The tool accepts user inputs for electrical and mechanical requirements and creates a PCB inductive sensor and supporting target. (...)
CALCULATOR TOOL
Angle error calculator for linear 3D Hall-effect sensors
Use our calculator tool to calculate angle error for our 3D Hall-effect sensors.