Firmware
TMAG3001-CODE-EXAMPLE — TMAG3001 code example
Code examples will provide customers ease of use in developing firmware for the TMAG3001
TMAG3001
Three-axis linear Hall-effect sensor with I²C and programmable switch in wafer chip-scale package
Data sheet
TMAG3001
- Configurable power modes including:
- Active mode current: 2.1mA
- Wake-up and sleep mode current: 0.45µA
- Sleep mode current: 40nA
- Selectable linear magnetic range at X, Y, or Z axis:
- TMAG3001A1 sample: ±40mT, ±80mT
- TMAG3001A2: ±120mT, ±240mT
- Integrated angle calculation with gain and offset adjustment to support off-axis placement
- Conversion trigger by I2C or dedicated INT pin
- Interrupt signal based on
- Magnetic or Angle threshold crossing
- Change from previous measurement
- Configurable 3D or angle switch mode
- Optimized for low noise, supporting up to 20kSPS single axis conversion rate
- I2C interface with cyclic redundancy check (CRC):
- Maximum 1MHz I2C clock speed
-
ADDR pin enables four devices on the same bus
- Integrated temperature compensation to support multiple magnet types
- Built-in temperature sensor
- Supply voltage VCC range: 1.65V to 3.6V
- Operating temperature range: –40°C to 125°C
The TMAG3001 is a low-power linear 3D Hall-effect sensor designed for a wide range of industrial and personal electronics applications. This device integrates three independent Hall-effect sensors in the X, Y, and Z axes. A precision analog signal-chain along with an integrated 12-bit ADC digitizes the measured analog magnetic field values. The I2C interface, while supporting multiple operating VCC ranges, allows seamless data communication with low-voltage microcontrollers.
The TMAG3001 can be configured through the I2C interface to enable any combination of magnetic axes and temperature measurements. Additionally, the device can be configured to various power options (including wake-up and sleep mode) allowing designers to optimize system power consumption based on their system-level needs. Multiple sensor conversion schemes and I2C read frames help optimize throughput and accuracy. A dedicated INT pin can act as a system interrupt during low power wake-up and sleep mode, and can also be used by a microcontroller to trigger a new sensor conversion. The device also features a configurable low power switch mode for magnetic or angle measurements.
An integrated angle calculation engine (CORDIC) provides full 360° angular position information for both on-axis and off-axis angle measurement topologies. The angle calculation is performed using two user-selected magnetic axes. The device features magnetic gain and offset correction to mitigate the impact of system mechanical error sources.
The TMAG3001 features an ADDR pin that can be used to have four different I2C addresses. Each orderable part can be configured to select one of two magnetic field ranges that corresponds to 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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Technical documentation
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Evaluation board
TMAG3001EVM — TMAG3001 evaluation module for three-axis linear Hall-effect sensor with I²C and programmable switch
The TMAG3001 evaluation module (EVM) is an easy-to-use platform to evaluate the main features and performance of the TMAG3001, which is a linear 3D Hall-effect sensor. TMAG3001EVM includes one magnet and a TMAG3001 daughterboard. The EVM works with a sensor controller board (TI-SCB) (sold (...)
Support software
TMAG3001EVM-BSL — TMAG3001EVM 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 TMAG3001EVM GUI
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 |
|---|---|---|
| DSBGA (YBG) | 6 | Ultra Librarian |
Ordering & quality
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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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