2023-05-19 23:38:53

What applications can TI's new 3D Hall-effect position sensor TMAG5170 be used?

Texas Instruments (TI) has introduced an accurate 3D Hall effect position sensor. With the TMAG5170, engineers can achieve ultra-high precision at speeds up to 20 kSPS without calibration, enabling faster and more precise real-time control in factory automation and motor drive applications. The sensor also offers integrated functional and diagnostic features that maximize design flexibility and system safety while consuming at least 70 percent less power than competing devices. The TMAG5170 is the first device in TI's new family of 3D Hall-effect position sensors, addressing a wide range of industrial needs including ultra-high performance and general-purpose applications.

Enables faster, more accurate real-time control
The TMAG5170 is TI's first 3D Hall-effect position sensor, offering a total full-scale error as low as 2.6% at room temperature. It also has a total error drift as low as 3% (at least 30% lower than similar competitors), and at least 35% lower error than competing devices in the presence of transverse field. Taken together, these features enable the TMAG5170 to provide higher accuracy than any other 3D Hall-effect position sensor without the need for terminal calibration and off-chip error compensation, simplifying system design and manufacturing. For faster and more accurate real-time control, the sensor supports measurements up to 20 kSPS, enabling low-latency throughput for high-speed mechanical motion.
Maximize design flexibility and system safety with integrated functional and diagnostic features
The TMAG5170 eliminates the need for off-chip calculations and enables flexible orientation of sensors and magnets through integrated features such as an angle calculation engine, averaging measurement, and gain and offset compensation. These features simplify design and maximize system flexibility, enabling faster control loops, reduced system latency, and simplified software development regardless of sensor placement. The sensor's integrated computing capabilities also reduce the system's processor load by up to 25 percent, allowing engineers to use general-purpose MCUs, such as TI's low-power MSP430™ MCUs, to minimize overall system cost.
In addition, the TMAG5170 enhances safety with a unique suite of intelligent diagnostics, such as checking communications, continuity and internal signal paths, as well as configurable diagnostics for external power, magnetic fields and system temperature. As a result, engineers can customize chip and system-level security solutions to achieve long-term reliability and lower design costs.
Improve power supply efficiency by at least 70%
The TMAG5170 offers multiple modes of operation and reduces power consumption by at least 70% compared to other linear 3D Hall-effect position sensors while maintaining system performance. These configurable modes allow engineers to reduce power consumption in a sampling range of 1 SPS to 20 kSPS for battery-operated devices or light load modes where system efficiency is concerned.

"Smart factories have an increasing number of highly automated systems that must operate within a more integrated manufacturing process while simultaneously collecting data to control the process," said Noman Akhtar, senior research analyst at Omdia. "3D position sensing technology with higher accuracy, speed and energy efficiency is critical for automation equipment, which can quickly achieve precise real-time control to improve system efficiency and performance while reducing downtime."


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