Firmware
TMAG5173-Q1
Automotive, high-precision, linear 3D Hall-effect sensor with I²C interface
Data sheet
TMAG5173-Q1
- High-precision linear 3D Hall-effect sensor to optimize position sensing speed and accuracy:
- Sensitivity room temperature error, X, Y, Z axes: ±2.5% (maximum)
- Sensitivity mismatch temperature drift X-Y axes: ±2% (maximum)
- X-Y angle measurement room temperature error: ±1.1° (maximum)
- X-Y angle measurement temperature drift: ±1.2° (maximum)
- 20kSPS conversion rate for single axis
- Functional Safety-Compliant:
- Developed for functional safety applications
- Documentation available to aid ISO 26262 system design
- Systematic capability up to ASIL D
- Hardware integrity up to ASIL B or SIL 2
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to 125°C
- Configurable power modes including:
- 8nA (typical) sleep mode current
- Selectable linear magnetic range at X, Y, or Z axis:
- TMAG5173x1-Q1: ±40mT, ±80mT
- TMAG5173x2-Q1: ±133mT, ±266mT
- Interrupt signal from user-defined magnetic and temperature threshold cross
- Configurable unipolar and omnipolar switch function
- Integrated angle CORDIC calculation with gain and offset adjustment
- Configurable averaging filter for noise reduction
- I2C interface with cyclic redundancy check (CRC):
- Maximum 1MHz I2C clock speed
- Conversion trigger by I2C or dedicated INT pin
- Integrated temperature compensation for multiple magnet types
- Built-in temperature sensor
- 2.3V to 3.6V supply range
- I2C and INT pin tolerance: 5.5V (maximum)
The TMAG5173-Q1 is a low-power linear 3D Hall-effect sensor designed for a wide range of automotive and industrial applications. This device integrates three independent Hall-effect sensors in the X, Y, and Z axes. A precision analog signal-chain supports applications requiring narrow design tolerance. Integrated safety mechanisms enable robust functional safe system design. The device can be used in 1D linear measurements, 2D angle measurements, 3D joystick measurements, magnetic threshold cross detection, and various user configurable switch function applications. The digital filter option allows up to 32 times sensor data integration for improved noise performance. The I2C interface, while supporting multiple operating VCC ranges, ensures seamless data communication with microcontrollers. The device has an integrated temperature sensor available for multiple system functions, such as thermal budget check or temperature compensation calculation for a given magnetic field.
The TMAG5173-Q1 supports multiple operating modes (including wake-up and sleep mode) to optimize the system power consumptions and operating speed. During the active mode the device performs continuous conversions autonomously. During standby mode the INT pin or I2C communication can be used by a microcontroller to trigger a new conversion. During the sleep mode the device consumes ultra-low power and retains the configuration register values.
An integrated angle calculation engine (CORDIC) provides full 360° angular position information for both on-axis and off-axis topologies with an angle resolution of 1/16 degree. The angle calculation is performed for any of the X-Y, Y-Z, or Z-X planes based off the user configuration register selection. The device features magnetic gain and offset correction to mitigate the impact of system mechanical error sources.
The TMAG5173-Q1 can be configured through the user registers to enable any combination of magnetic axes and temperature channel conversions. The device supports several I2C read frames along with cyclic redundancy check and diagnostic status communications.
The TMAG5173-Q1 is offered in four different factory-programmed I2C addresses. The device also supports additional I2C addresses through the modification of a user-configurable I2C address register. Each orderable part can be configured to select one of two magnetic field ranges that suits the magnet strength and component placement during system calibration.
The device performs consistently across a wide ambient temperature range of –40°C to +125°C.
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Evaluation board
LDC-HALL-HMI-EVM — Evaluation module for inductive touch and magnetic dial contactless user-interface design
This evaluation module (EVM) uses inductive and Hall-effect sensing technologies to provide a human-machine interface. The inductive sensing devices create eight different touch buttons on a seamless surface while the Hall-effect sensor is used to create a magnetic dial that can rotate and be used (...)
Evaluation board
TMAG5173EVM — TMAG5173-Q1 evaluation module for automotive, high-precision, linear 3D Hall-effect sensor with I²C
The TMAG5173EVM is an easy-to-use platform to evaluate the main features and performance of the TMAG5173-Q1 device, which is a linear 3D Hall-effect sensor. The evaluation module (EVM) includes one magnet and a TMAG5173-Q1 daughter board. The EVM works with a sensor controller board, TI-SCB (sold (...)
GUI for evaluation module (EVM)
TMAG5X73EVM-GUI — TMAG5173EVM and TMAG5273EVM GUI
TMAG5x73EVM GUI will allow users to measure and plot the magnetic fields sensed by the device
Supported products & hardware
Support software
SBAC295 — TMAG5173EVM and TMAG5273EVM BSL Batch File
Provides an executable that can be used by customers to flash their TI-SCB with the firmware needed to interface with the TMAG5x73EVM GUI
Supported products & hardware
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.
Supported products & hardware
Calculation tool
SBAR012 — Angle Error Calculator for Linear 3D Hall-effect Sensors
Angle Error Calculator for Linear 3D Hall-effect Sensors
Supported products & hardware
Simulation tool
TI-MAGNETIC-SENSE-SIMULATOR — TI Magnetic sensing simulation tool
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 (...)
Supported products & hardware
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
Ordering & quality
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