Engineers gain a powerful edge in position-sensing design with a new in-plane Hall-effect switch that detects ultra-weak magnetic fields, lowers system costs, and supports greater flexibility for compact electronic devices.
Engineers now have access to the industry’s most sensitive in-plane Hall-effect switch, designed to dramatically reduce design costs and provide flexibility in position sensing for applications ranging from personal electronics to home security. Capable of detecting magnetic fields as weak as 1mT, this new sensor enables the use of smaller magnets, paving the way for more compact and cost-effective systems. Its in-plane sensing functionality allows magnetic fields parallel to a circuit board to be effectively detected—offering unprecedented versatility for engineers rethinking existing sensor designs.
The key features are:
- Ultra-low average power consumption: 0.6 μA
- Maximizes battery life in portable, always-on applications
- Built-in signal amplification lowers operating current
- Improves overall efficiency for compact designs
- Ideal for smart appliances, access control, and consumer devices
Unlike traditional reed or magnetoresistive switches that rely on costly materials and complex manufacturing, this Hall-effect switch utilizes an integrated magnetic concentrator to boost sensitivity while simplifying the overall production process. This technological advance bridges the sensitivity gap that previously made Hall-effect switches unsuitable as replacements for TMR, AMR, GMR, or reed sensors, reimagining the landscape for high-performance, low-power position sensing.
Manufactured on Texas Instruments’s (TI’s) 300mm lines and available in production volumes, the switch is accompanied by a suite of developer resources, including an evaluation module and a magnetic sense simulator. These comprehensive tools allow rapid prototyping and straightforward simulation of magnetic field interactions, allowing engineers to bring innovative products to market faster.
This advancement broadens the options available in TI’s magnetic sensing portfolio, which covers a range of switches, latches, and multiaxis sensors for diverse design applications. By delivering a blend of sensitivity, cost-effectiveness, and user-friendly development support, in-plane Hall-effect sensing heralds a new standard for designers seeking high-performance yet accessible sensor solutions for modern electronic systems.
