Established in 1990 and headquartered in Manchester, New Hampshire, Allegro MicroSystems is a renowned global semiconductor industry leader specializing in power and sensing solutions. With a mission to revolutionize e-Mobility, clean energy, and industrial automation, the company caters to over 10,000 customers globally, including more than 50 automotive OEMs. Allegro’s impressive product portfolio spans sensor integrated circuits (ICs), power ICs, and motor drivers—vital components in automotive, industrial, and data center sectors. The company’s strategic collaborations, such as its partnership with GHSP for the innovative eVibe shift system, underscore its commitment to driving industry-leading advancements.
Driving Innovation Through Cutting-Edge Technology
Allegro MicroSystems has consistently pushed the boundaries of innovation, leveraging its state-of-the-art technologies to deliver transformative solutions. Among its groundbreaking achievements is the patented XtremeSense TMR (Tunnel MagnetoResistance) technology, which has revolutionized magnetic sensing. This technology offers unparalleled precision, enabling applications in electric vehicles (EVs), renewable energy, and industrial automation. The ACS37030MY and ACS37220MZ current sensor ICs are prime examples of Allegro's innovative prowess. These devices provide high operating bandwidth, robust isolation, and low power dissipation, making them indispensable for modern automotive and industrial systems.
The company’s dedication to technological advancement is further exemplified by its acquisition of Crocus Technology, a move that has significantly bolstered Allegro’s capabilities in developing advanced TMR sensing solutions. This acquisition has accelerated the integration of TMR technology into Allegro's portfolio, paving the way for next-generation power and sensing applications. Allegro’s continuous investment in research and development ensures its position as a pioneer in the semiconductor industry.
Products & Services
Allegro MicroSystems offers a comprehensive range of products and services tailored to meet the demands of the Power Electronics (PE) and Electric Vehicle (EV) industries. Among its offerings are high-performance sensor ICs, regulator ICs, and driver ICs, which are designed to enhance system efficiency, reliability, and sustainability.
The company’s sensor ICs include state-of-the-art current sensors, magnetic position sensors, and speed sensors that provide precise measurements for critical applications. A standout product in this category is the ACS37030MY current sensor, which utilizes Allegro’s patented XtremeSense™ TMR technology. This sensor delivers high accuracy, low noise, and high operating bandwidth, making it ideal for EVs, renewable energy systems, and industrial applications.
Regulator ICs are another key offering, with products like Allegro’s innovative ClearPower Modules designed for efficient power management. These ICs translate and regulate power with exceptional precision, ensuring reliability in EV charging stations and renewable energy systems. Their scalable designs make them highly adaptable for different power requirements.
Driver ICs from Allegro include brushless DC motor drivers and isolated gate drivers that simplify motor control systems while improving performance. The Power-Thru Combo Chip series is a notable highlight, providing robust and scalable solutions for high-power applications such as industrial automation and EV motor drives. These drivers are engineered to ensure optimal performance under challenging operating conditions.
Two major products that showcase Allegro’s expertise and innovation stand out:
ACS37220MZ Current Sensor: This product is a game-changer for automotive and industrial applications, designed with Allegro’s advanced XtremeSense TMR technology. The ACS37220MZ offers superior isolation and exceptional measurement accuracy, making it ideal for high-performance systems such as battery management and motor control in electric vehicles (EVs). Its high bandwidth and low power dissipation ensure efficient operation, while its compact design allows seamless integration into space-constrained applications. This sensor also enhances safety compliance as it meets stringent automotive-grade certifications, making it a reliable choice for mission-critical applications. By delivering accurate, real-time current monitoring, the ACS37220MZ optimizes energy usage and ensures the safe operation of complex systems.
A89331 Motor Driver IC: It is a three-phase sensorless motor driver with integrated MOSFETs. This IC is designed for high-speed server cooling fans, industrial blowers, and consumer fan applications. The A89331 eliminates the need for Hall sensors by utilizing sensorless sinusoidal drive technology, which minimizes vibration and reduces audible noise. It features a flexible closed-loop speed control system, configurable speed curves via EEPROM, and advanced protection mechanisms such as overvoltage protection, power loss brake, and fault mode brake. With its low Rds(on) power MOSFETs and compact design, the A89331 ensures efficient operation and reliability in demanding environments.
By integrating advanced technologies like XtremeSense TMR and Power-Thru architecture, Allegro’s solutions empower clients to develop efficient, compact, and sustainable systems. The company’s commitment to quality and innovation ensures its products remain at the forefront of the PE and EV industries.
Recent Milestones and Industry Recognition
In recent years, Allegro MicroSystems has achieved several significant milestones that have further solidified its position as an industry leader. The launch of the ACS37030MY and ACS37220MZ current sensor ICs represents a major leap forward in sensing technology, offering innovative features such as higher isolation and enhanced safety compliance. Additionally, Allegro’s presence at CES 2025 highlighted its groundbreaking sensing and power solutions, capturing widespread industry attention.
The company has also been recognized for its excellence through prestigious awards, including the Electronica 2024 Best-in-Show Award for its A89224 automotive system-on-chip (SoC). Strategic acquisitions, such as the integration of Crocus Technology, have enabled Allegro to expand its technological footprint, particularly in the domain of TMR sensing. These developments underscore Allegro’s unwavering commitment to innovation and excellence.
Shaping the Future of the PE and EV Industries
Allegro MicroSystems is poised to play a pivotal role in shaping the future of the PE and EV industries. The company’s commitment to advancing sensing and power technologies aligns with its vision of driving innovation in e-Mobility, clean energy, and industrial automation. Future projects are expected to focus on enhancing the efficiency and reliability of EVs, renewable energy systems, and advanced industrial automation solutions. Industry experts anticipate that Allegro’s strategic initiatives and cutting-edge technologies will have a profound and lasting impact on the global semiconductor market.
Allegro MicroSystems continues to set new benchmarks in power and sensing technologies, driving advancements that are shaping the future of the Power Electronics and Electric Vehicle industries. By leveraging its innovative solutions and unwavering commitment to quality, Allegro empowers its clients to meet the growing demands of a rapidly evolving world.
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