The TMAG3101-Q1 is a high-precision linear 3D Hall-effect sensor designed for a wide range of automotive and industrial applications. The high level of integration offers flexibility and accuracy in a variety of position sensing systems. This device features three independent Hall sensors at X, Y, and Z axes. The integrated EEPROM memory enables storage of configuration and linearization data inside the sensor.
A precision signal-chain along with an integrated 20-bit ADC enables high accuracy and low drift magnetic field measurements across a wide ambient temperature range of –40°C to +160°C. The device offers hysteresis, offset, gain, and phase correction options for angle and linear measurement applications. The device also offers up to 32-point linearization scheme to correct system level error sources such as mechanical offset, tilt, and rotation. On-chip temperature sensor data is accessible for system temperature drift compensation.
Integrated angle calculation engine (CORDIC) provides full 360° angular position information for both on-axis and off-axis angle measurement topologies. Several angle calculation schemes are available using user-selected magnetic axes, including 2D or 3D Alpha and Beta angle calculations for joystick or hinge applications.
The TMAG3101-Q1 is calibrated and programmed using the 1-wire SWIFT interface. The device supports user selectable SENT, Triggered SENT, PWM, and Analog output interfaces. TI’s unique Triggered SENT interface allows up to four sensors in the same SENT line enabling user selectable addressing scheme.
The TMAG3101-Q1 offers robust diagnostics features to detect and report both system and device-level failures. The SENT communication features a user-enabled cyclic redundancy check to enhance the data integrity. The dual-die variant provides full redundancy, with two identical die in a single package.
The device supports orderable magnetic field ranges of ±50mT, ±100mT, and ±150mT.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TMAG3101-Q1 Automotive, High-Precision, Linear 3D Hall-Effect Sensor With SENT/ PWM/Analog Interface datasheet | PDF | HTML | Nov 2, 2026 |
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