Allegro MicroSystems Sets New Standard for Efficiency in High-Power Systems with Ultra-Low-Loss Isolated Current Sensor
MWN-AI** Summary
Allegro MicroSystems, Inc. has launched the ACS37200, a revolutionary galvanically isolated current sensor designed to tackle efficiency challenges in high-power systems. This new product targets the growing demands of compact and high-performance applications such as hybrid and battery electric vehicles (HEVs/EVs), industrial automation, AI data centers, and solar inverters. Traditional shunt resistors often lead to significant power loss, generating heat and adding complexity to designs. With an industry-leading conductor resistance of just 50 µ?, the ACS37200 drastically reduces power loss by up to 90%, transforming wasted energy into usable power, enhancing the operational efficiency of vehicles and data centers.
The ACS37200’s compact design allows for an impressive 95% reduction in footprint compared to traditional shunt solutions, making it nearly 70% smaller than its predecessor, the ACS772. This enables designers to optimize space on circuit boards and eliminate the need for bulky heatsinks because of the minimal heat generated by the sensor. According to Matt Hein, Business Line Director of Current Sensors at Allegro, this shift not only addresses power limitations but also gives customers greater design flexibility and facilitates the creation of advanced systems for e-Mobility, industrial automation, and clean energy.
Another significant advantage of the ACS37200 is its complete integration into a single component, streamlining the design process. It combines multiple functions—previously requiring a shunt resistor, isolation amplifier, and passive components—into a single factory-calibrated IC, simplifying supply chains and enhancing system safety through certified isolation.
In summary, the ACS37200 sets a new standard in efficiency and compactness for high-power applications, addressing the critical needs of modern design challenges while promoting sustainability.
MWN-AI** Analysis
Allegro MicroSystems has made a significant advancement in the electronics market with the introduction of its ACS37200 isolated current sensor. This innovative product addresses the growing demand for efficiency and compactness in high-power applications such as hybrid and battery electric vehicles (HEVs/EVs), industrial automation, and AI data centers. As power requirements escalate, traditional shunt resistors become inadequate due to energy loss manifested as heat. The ACS37200, with its ultra-low resistance of only 50 µ?, effectively mitigates this challenge, reducing power loss by a staggering 90%.
For investors considering Allegro MicroSystems (Nasdaq: ALGM), this breakthrough presents a compelling opportunity. The dramatic reduction in power loss enhances the operational efficiency of systems using this sensor, translating to longer range capabilities for EVs and lower operational costs for data centers. Moreover, the flexibility in design offered by the ACS37200—due to its smaller footprint and integrated multi-functionality—positions Allegro as a frontrunner in a market increasingly driven by compact, energy-efficient solutions.
Furthermore, given the global push toward renewable energy and sustainability, Allegro's embrace of clean energy technologies aligns perfectly with industry trends. The sensor's ability to perform under high-voltage conditions further strengthens its applicability across various sectors, likely driving increased adoption.
As the demand for clean, efficient energy solutions continues to rise, Allegro’s investment in R&D and the development of innovative technologies like the ACS37200 could yield substantial future growth. Market analysts should closely monitor Allegro’s market share in these rapidly evolving sectors, as successful integration of the ACS37200 into high-demand applications could provide a significant boost to both revenue and stock performance, making it a noteworthy player for investment consideration in the tech and clean energy sectors.
**MWN-AI Summary and Analysis is based on asking OpenAI to summarize and analyze this news release.
MANCHESTER, N.H., Jan. 05, 2026 (GLOBE NEWSWIRE) -- Allegro MicroSystems, Inc. (“Allegro”) (Nasdaq: ALGM), a global leader in power and sensing solutions for motion control and energy-efficient systems, today announced the ACS37200, a galvanically isolated current sensor that provides a breakthrough solution to the efficiency and power density challenges in high-current applications. As engineers design increasingly compact and powerful systems for hybrid and battery electric vehicles (HEV/EVs), industrial automation, AI data centers, and solar inverters, the heat and power loss generated by traditional shunt resistors has become a primary design bottleneck. The ACS37200, with its industry-leading 50 µ? conductor resistance, removes this obstacle, enabling designers to build smaller, more efficient, and more reliable power systems.
From Wasted Heat to More Power
In a high-current system, every milliohm of resistance matters. A typical 100A design using a 0.5m? shunt resistor can waste up to 5 watts of power as pure heat, requiring costly and space-consuming heatsinks. The ACS37200’s ultra-low 50 µ? resistance reduces that power loss to just 0.5 watts—a 90% reduction. This means less energy is wasted and more power is available to drive the vehicle or run the server, directly improving HEV/EV range and lowering data center operating costs.
A Breakthrough in Power Density
This efficiency gain is a critical enabler for power density. While Allegro’s previous generation of integrated sensors, such as the ACS772, already offered a nearly 7x size reduction over bulky discrete shunt solutions, the new ACS37200, in its compact 100 mm² PSOF package, takes this even further. It is nearly 70% smaller than the ACS772’s CB package, resulting in a total footprint that is 20 times smaller than a traditional shunt solution—a significant 95% reduction in board space. Because the sensor generates minimal heat, designers can eliminate bulky heatsinks, and its integrated architecture removes external isolation components, directly enabling this new level of compactness and higher power density.
“Our customers consistently tell us that power is a major bottleneck. Systems need to monitor, convert and deliver more power than ever before in the same or even smaller form factors,” said Matt Hein, Business Line Director of Current Sensors at Allegro MicroSystems. “By drastically cutting power loss and offering a 95% reduction in footprint, we are giving our customers more design freedom, higher power density, and a faster path to building smaller, more efficient systems for the future of e-Mobility, industrial automation, and clean energy.”
Simplifying Design and Enhancing Safety
Beyond efficiency and density, the fully integrated ACS37200 simplifies the design process. As a single, factory-calibrated component certified to UL 62368-1, it replaces multiple discrete parts—including a shunt resistor, isolation amplifier, and associated passive components. This reduces the bill of materials (BOM), simplifies the supply chain, and removes the need for complex high-voltage isolation design, enhancing system safety and reliability.
ACS37200 Features and Benefits
- Ultra-Low Power Loss: Industry’s lowest conductor resistance of 50 µ? reduces power loss by 90% compared to a typical 0.5m? shunt.
- Unprecedented Power Density: A 95% smaller footprint than discrete shunt solutions delivers more compact and cost-effective end products.
- Robust, Certified Isolation: Provides 1000 VRMS / 1,414 VDC of certified galvanic basic isolation in a single surface-mount package and is certified to UL 62368-1.
- Simplified Design: Replaces multiple discrete components (shunt, isolation amp) with a single factory-calibrated IC in a space-saving 8-pin PSOF package.
Stop wasting power on hot, inefficient shunts. Discover how the ACS37200 can reduce sensing-related power loss by up to 90%. Datasheets and samples are available now at: www.allegromicro.com/acs37200.
About Allegro MicroSystems
Allegro MicroSystems, Inc. is leveraging more than three decades of expertise in magnetic sensing and power ICs to propel automotive, clean energy and industrial automation forward with solutions that enhance efficiency, performance and sustainability. Allegro’s commitment to quality drives transformation across industries, reinforcing our status as a pioneer in "automotive-grade" technology and a partner in our customers' success. For additional information, visit https://www.allegromicro.com/en/.
Media Contact:
Andrew MacLellan
Corporate Communications
(617) 633-4909
am@embedded-pr.com
Allegro Contact:
Ram Sathappan
Vice President of Global Marketing and Applications
rsathappan@allegromicro.com
A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/8f2e1432-de04-4b99-90ce-440aa1108802
FAQ**
How does the introduction of the ACS37200 by Allegro MicroSystems Inc. (Nasdaq: ALGM) address the challenges of efficiency and power density in high-current applications for hybrid and battery electric vehicles?
What specific advantages does the ultra-low conductor resistance of 50 µ? in the ACS37200 sensor provide to Allegro MicroSystems Inc. ALGM's customers in terms of energy efficiency and system design?
In what ways does Allegro MicroSystems Inc. (ALGM) expect the 95% footprint reduction of the ACS37200 to impact the future of industrial automation and clean energy systems?
How does the ACS37200 simplify the design process for engineers, according to Allegro MicroSystems Inc. ALGM, and what implications does this have for the supply chain and system safety?
**MWN-AI FAQ is based on asking OpenAI questions about Allegro MicroSystems Inc. (NASDAQ: ALGM).
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