Wedoany.com Report on Feb 26th, Allegro MicroSystems, Inc. has released the ACS37017 Hall-effect current sensor, characterized by its high measurement accuracy. This launch marks a further expansion of Allegro's high-performance current sensing product line, covering three key requirements in modern power electronics: the high-speed performance of the ACS37100, the high power density of the ACS37200, and the precise measurement capability of the ACS37017.
In AI data centers, electric vehicles, and clean energy systems, power converters are continuously pursuing higher efficiency, prompting designers to adopt dedicated sensing solutions tailored to different performance priorities. The ACS37017 Hall-effect current sensor is factory-calibrated, focusing on accuracy optimization. It combines high-voltage isolation with an advanced sensing architecture, achieving a typical sensitivity error of 0.55% across temperature variations and long-term use, providing reliable feedback for the stable control of high-voltage power converters.
The ACS37100, based on XtremeSense Tunneling Magnetoresistance (TMR) technology, offers a bandwidth of up to 10 MHz, making it suitable for GaN and SiC platforms. The ACS37200 meets power density requirements by integrating a 50 micro-ohm conductor, effectively reducing power consumption and space occupancy. Traditional current sensors are susceptible to accuracy degradation from temperature fluctuations and aging, whereas the ACS37017 Hall-effect current sensor employs a proprietary compensation architecture to actively stabilize measurement performance, ensuring the accuracy of control loop operations throughout the power system's entire lifecycle.
The ACS37017 Hall-effect current sensor also simplifies system design. It integrates a stable non-ratiometric voltage reference, reducing reliance on external precision components, thereby lowering material costs and PCB footprint, while eliminating system-level noise and error sources. This enables the sensor to output a clear, stable signal directly to the microcontroller.
The ACS37017 Hall-effect current sensor integrates high-precision current sensing, low time and temperature drift, enhanced high-voltage isolation, and a compact surface-mount package. Its monolithic design provides robust isolation performance, avoiding the size and complexity of module solutions, making it suitable for high-voltage automotive and industrial application scenarios.
