Allegro MicroSystems Introduces High-Bandwidth Current Sensors Incorporating XtremeSense™ TMR Technology

Core Insights - Allegro MicroSystems has launched two new XtremeSense™ TMR sensors, CT455 and CT456, aimed at enhancing high power density designs while improving energy efficiency and reducing costs [1][2][3] Product Features - The CT455 sensor supports two standard field ranges for sensing magnetic fields and translating them into a linear analog output voltage, while the CT456 has a preprogrammed 6 mT field range [2] - These sensors are designed for high-accuracy current measurements on PCB or Busbar applications, capable of measuring currents from 80 A to above 800 A, with optimal performance in the 80-200 A range [2] - The new TMR sensors provide a contactless, non-intrusive solution with a bandwidth of 1 MHz and a response time of 300 ns, facilitating faster power conversion [3] Market Positioning - The launch of CT455 and CT456 marks a significant milestone for Allegro, being the first TMR products introduced since the acquisition of Crocus, reinforcing the company's commitment to TMR technology adoption [3] - Allegro's sensors offer distinct advantages over traditional high-power current sensors, including low noise performance and optimized sensitivity for rapid voltage changes [3] Company Background - Allegro MicroSystems has over three decades of expertise in magnetic sensing and power ICs, focusing on automotive, clean energy, and industrial automation sectors [4]