TMAG517x Linear 3D Hall effect Sensor - TI

Product Highlights > TMAG517x High-Precision Linear 3D Hall Effect Sensor with SPI Bus Interface

            TMAG517x High-Precision Linear 3D Hall Effect Sensor with SPI Bus Interface
                    Texas Instruments' highly integrated sensor offers flexibility and accuracy for a variety of position sensing systems
    

Image of Texas Instruments' TMAG517x High-Precision Linear 3D Hall-Effect Sensor Texas Instruments' TMAG5170 is a high-precision linear 3D Hall effect sensor designed for a wide range of industrial and personal electronics 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 the X, Y, and Z axes. A precision signal chain along with an integrated 12-bit ADC enables high-accuracy and low-drift magnetic field measurements while supporting a sampling of up to 20 ksps. On-chip temperature sensor data is available for system-level drift compensation.

The integrated angle calculation engine (CORDIC) provides full 360° angular position information for the 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 TMAG5170 can be configured through the serial peripheral interface (SPI) to enable any combination of magnetic axes and temperature measurements. There are multiple sensor conversion schemes and SPI read frames to optimize throughput and accuracy. A dedicated ALERT pin can act as a system interrupt during low power wake-up and sleep mode and can be used by a microcontroller to trigger a new sensor conversion.

The TMAG5170 offers multiple diagnostics features to detect and report system and device-level failures. The SPI communication features a user-enabled cyclic redundancy check to enhance the data integrity. The device is offered in two different versions to support wide magnetic fields range from ±25 mT to ±300 mT. The sensor offers an ambient temperature range of -40°C to +150°C.

Features

High-precision linear 3D Hall effect sensor to optimize position sensing speed and accuracy:
- Linear measurement total error: ±2.6% (max. at +25°C)
- Sensitivity temperature drift: ±2.8% (max.)
- Conversion rate: 20 ksps for single axis
10 MHz SPI with cyclic redundancy check (CRC)
Built-in temperature sensor with <±2°C error
Independently selectable X, Y, and Z magnetic ranges:
- TMAG5170A1: ±25 mT, ±50 mT, and ±100 mT
- TMAG5170A2: ±75 mT, ±150 mT, and ±300 mT

Deep sleep mode current: 5 nA (typ.)
Autonomous wakeup and sleep mode for threshold detection consuming 1.5 µA
ALERT function to initiate sensor conversion or indicate conversion completion
Integrated diagnostics for fault detection
Integrated angle CORDIC calculation with gain and offset adjustment
Supply voltage range: 2.3 V to 5.5 V
Operating temperature range: -40°C to +150°C

Applications

Robotic-arm sensors
Mobile robot motor controls
Proximity sensors
Linear motor position sensors
Servo drive position sensors

Actuators
Robotic lawnmowers
Vacuum robots
Washers and dryers
Door and window sensors

TMAG517x High-Precision Linear 3D Hall-Effect Sensors

Manufacturer Part Number	Description	Available Quantity	View Details
TMAG5170A2EDGKRQ1	AUTOMOTIVE, HIGH-PRECISION, LINE	0	View Details
TMAG5170A1EDGKRQ1	AUTOMOTIVE, HIGH-PRECISION, LINE	0	View Details
TMAG5170A1QDGKR	HIGH-PRECISION, 3D LINEAR HALL-E	2078 - Immediate	View Details
TMAG5170A1QDGKT	HIGH-PRECISION, 3D LINEAR HALL-E	0	View Details
TMAG5170A2QDGKT	HIGH-PRECISION, LINEAR 3D HALL-E	0	View Details
TMAG5170A2QDGKR	HIGH-PRECISION, LINEAR 3D HALL-E	0	View Details

Evaluation Board

	Image	Manufacturer Part Number	Description	Sensor Type	Sensing Range	Interface	Available Quantity	View Details
		TMAG5170UEVM	EVAL BOARD FOR TMAG5170	Hall Effect	±25mT, ±50mT, ±75mT, ±100mT, ±150mT, ±300mT	SPI	17 - Immediate	View Details

Published: 2022-02-22

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