Texas Instruments (TI) has revealed industry’s most accurate 3D Hall-effect position sensor.
With the TMAG5170, engineers can achieve uncalibrated ultra-high precision at speeds up to 20 kSPS for faster and more accurate real-time control in factory automation and motor-drive applications.
“Smart factories have an increasing number of highly automated systems that must operate in a more integrated manufacturing flow while simultaneously collecting data to control processes,” said Noman Akhtar, Senior Research Analyst, Omdia. “3D position-sensing technology that delivers higher accuracy, speed and power efficiency are essential for automated equipment to quickly deliver precise real-time control for increased system efficiency and performance while reducing downtime.”
The sensor also provides integrated functions and diagnostics to maximize design flexibility and system safety, while using at least 70% less power than comparable devices.
The TMAG5170 is the first device in a new family of 3D Hall-effect position sensors that will meet a wide range of industrial needs – from ultra-high performance to general purpose.
The TMAG5170 is the industry’s first 3D Hall-effect position sensor to provide a low 2.6% full-scale total error at room temperature. It also features a best-in-class drift of 3% total error – 30% lower than the next closest competitor – along with at least 35% lower error than comparable devices in the presence of a cross-axis field.
Together, these features enable the TMAG5170 to deliver higher accuracy than any other 3D Hall-effect position sensor, eliminating the need for end-of-line calibration and off-chip error compensation, and simplifying system design and manufacturing.
The TMAG5170 eliminates the need for off-chip computation and enables flexible sensor and magnet orientations by integrating features such as an angle calculation engine, measurement averaging, and gain and offset compensation. These features simplify design and maximize system flexibility, enabling faster control loops, reduced system latency and simpler software development – regardless of sensor placement.
Additionally, the TMAG5170 increases safety with a unique set of smart diagnostic capabilities – such as checks for communication, continuity and internal signal path – as well as configurable diagnostics for the external power supply, magnetic field and system temperature. This allows engineers to customize a safety scheme at both the chip and system level for long-term reliability and lower design costs.