Allegro MicroSystems, has introduced the ACS37017, a Hall-effect current sensor designed for high-precision measurement. This launch completes Allegro’s high-performance current-sensing lineup, which now addresses three key needs in modern power electronics: speed with the ACS37100, power density with the ACS37200, and accuracy with the ACS37017.
As power converters in AI data centers, xEVs, and clean energy systems aim for higher efficiency, designers increasingly rely on application-specific sensors to meet distinct performance priorities.
The factory-calibrated ACS37017 is optimized for accuracy, featuring high-voltage isolation and an advanced sensing architecture that achieves a typical sensitivity error of just 0.55% across temperature and lifetime. This ensures precise feedback for stable control of high-voltage power converters.
The ACS37100, using XtremeSense tunnel magnetoresistance (TMR) technology, supports up to 10 MHz bandwidth for GaN and SiC platforms, while the ACS37200 targets power-density requirements with a 50-µΩ integrated conductor, reducing power loss and footprint.
Traditional current sensors often lose accuracy due to temperature changes and long-term drift. The ACS37017 overcomes this with a proprietary compensation architecture, stabilizing measurement performance and maintaining accurate control-loop operation over the system’s lifetime.
Additionally, the ACS37017 simplifies system design with a built-in, stable voltage reference, eliminating the need for external precision components, lowering BOM costs, saving PCB space, and reducing system-level noise. This allows the sensor to provide a clean, stable signal directly to microcontrollers.
Packaged in a compact, surface-mount leaded form, the ACS37017 delivers high-accuracy sensing, low drift, reinforced high-voltage isolation, and a robust monolithic design. Its combination of precision, reliability, and compactness makes it ideal for high-voltage automotive and industrial applications.
