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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New products
Automotive, 1MHz Hall-effect current sensor with AFR and ALERT
Approx. price (USD) 1ku | 2.199
Three-axis linear Hall-effect sensor with I²C and programmable switch in wafer chip-scale package
Approx. price (USD) 1ku | 0.29
80ARMS 250kHz Hall-effect current sensor with AFR
Approx. price (USD) 1ku | 1.5
High-bandwidth (30-kHz), high-voltage (26 V) Hall-effect latch for low-cost applications
Approx. price (USD) 1ku | 0.105
Automotive high-precision analog AMR angle sensor with 360° angle range
Approx. price (USD) 1ku | 0.89
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.
Texas Instruments' Magnetic Sense Simulator User's Guide
Introduction to TI Magnetic Sense Simulator Features
TI-MAGNETIC-SENSE-SIMULATOR
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.
Precision labs series: Magnetic sensors
Sensing Magnetic Fields In-Plane Versus Out-of-Plane (Rev. C)
6 more myths about Hall-effect sensors
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.
eBike Position Sensor Functions
TMAG6180-6181 evaluation module
Designing a Position Sensing System With an AMR Angle Sensor
Featured products for AMR
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).
Auto Functional Safety and How TI is Helping Customers W/ High-Precision Sensors
Functional safety at TI
Featured products for Functional safety/Diagnostics
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.
Low Power Design Using Hall-Effect Sensors (Rev. A)
How Hall-Effect Sensors are Used in Electronic Smart Locks
Hall-Effect Sensors in Low-Power Applications (Rev. B)
Featured products for Low power
Technical resources
What is a Hall-effect sensor?
TI Precision Labs - Magnetic Sensors
How to select the right current sense technology for your high-voltage system
Discover featured applications
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
- DRV5055-5057EVM – DRV5055, DRV5056 and DRV5057 linear Hall effect sensor evaluation module
- HALL-ADAPTER-EVM – Hall sensor breakout adapter evaluation module
- Hall-Effect Sensors in Vacuum Robots – Application brief
- Brushless DC Motor Commutation Using Hall-Effect Sensors (Rev. B) – Application brief
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
- DRV5055-5057EVM – DRV5055, DRV5056 and DRV5057 linear Hall effect sensor evaluation module
- HALL-ADAPTER-EVM – Hall sensor breakout adapter evaluation module
- Position Sensing in Electronic Smart Locks Using Hall-Effect Sensors (Rev. A) – Application note
- Understanding tamper detection sensors – Technical article
- 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
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
- 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
- TMAG5170 – High-precision, linear 3D Hall-effect sensor with SPI bus interface
- TMAG6180-Q1 – Automotive high-precision analog AMR angle sensor with 360° angle range
- TMAG6180-6181EVM – TMAG6180 and TMAG6181 evaluation module with differential sine and cosine analog outputs
- TMAG5170UEVM – TMAG5170 evaluation module for high-precision, linear 3D Hall-effect sensor with SPI bus interface
- Calibration of AMR Angle Sensors – Application note
- Accurate Low Latency Linear Position Sense Reference Design With Quad 3-D Hall-Effect Sensors – Design guide
Design & development resources
Magnetic simulation software that includes mechanical motion and sensor output
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. (...)