Allegro MicroSystems Introduces New Power and Cooling Solutions for Sustainable 800V AI Data Centers

Allegro MicroSystems (ALGM) introduced current sensors, a gate driver and an updated motor driver for AI data center power and cooling systems.

Rhea-AI Summary

Allegro MicroSystems (ALGM) introduced current sensors, a gate driver and an updated motor driver for AI data center power and cooling systems. The portfolio includes wide-body ACS37030 and ACS37002 current sensors, the AHV85311 isolated gate driver and the updated QuietMotion A89333 motor driver, addressing 800V power distribution and 48V cooling.

Allegro said the products help designers manage energy use, heat and equipment size. The sensors are now available in packages providing 6000V of electrical isolation. Acbel Polytech has integrated Allegro’s high-speed current sensors into its latest high-density power solutions for AI data centers.

Key Figures

Galvanic isolation: 6000V Circuit-board space reduction: Up to 50% AI data-center serviceable addressable market: $1.7 billion

Galvanic isolation

6000V

Wide-body ACS37030 and ACS37002 current sensors

Circuit-board space reduction

Up to 50%

AHV85311 isolated gate-driver design

AI data-center serviceable addressable market

$1.7 billion

Company projection for fiscal 2031, based on third-party data and internal estimates

Previous AI Reports

1 past event · Latest: Jan 05

Same Type 1 event

1. Jan 05

   Power-Thru expansion

   24h Move

   +5.7%

   Earlier AHV85311 coverage identified the driver in 800V AI data-center designs and its isolated-supply simplification.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

comparative tracking index, galvanic isolation, silicon carbide, serviceable addressable market

4 terms

comparative tracking index technical

"high comparative tracking index (CTI) mold compound"

A comparative tracking index is a benchmark that aggregates the returns of a chosen market, sector, or group of peers so investors can directly compare how a specific fund or portfolio performs against that reference. Like comparing a car’s fuel efficiency on a highway versus in the city, it makes it easy to see whether an investment is keeping pace, consistently underperforming, or outperforming, which helps evaluate manager skill, risk and whether fees are justified.

galvanic isolation technical

"enabling 6000V of galvanic isolation for enhanced electrical safety"

Galvanic isolation is a design approach that keeps two electrical circuits physically separate so direct current cannot flow between them while still allowing information or power to pass via non-contact methods. Think of it like a glass window that lets light and sound through but prevents a shock if you touch one side. For investors it matters because it improves safety, reduces risk of device failures or regulatory problems, and can affect product costs and market acceptance.

silicon carbide technical

"isolated gate driver for silicon carbide (SiC) FETs"

Silicon carbide is a hard, durable material made from silicon and carbon, often used in industrial applications like cutting tools and electronics. Its ability to withstand high temperatures and conduct electricity efficiently makes it valuable in manufacturing advanced electronic devices. For investors, companies working with silicon carbide are seen as key players in the growing market for high-performance electronics and energy-efficient technologies.

serviceable addressable market financial

"serviceable addressable market (SAM) for AI data centers"

Serviceable addressable market (SAM) is the portion of the total market demand for a product or service that a company can realistically reach with its current products, distribution channels, and geographic or regulatory constraints. It is calculated by narrowing the broader total addressable market (TAM) to the customers and use cases the company can serve today — for example by excluding regions, customer segments, or product types outside the company’s operational scope — and is used to estimate achievable revenue opportunity absent changes in strategy or capacity.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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New products boost energy efficiency and power density as data centers transition to 800V power distribution and 48V cooling architectures.

MANCHESTER, N.H., Oct. 27, 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 a series of products for AI data centers and high-performance computing systems that increase power density while helping designers better manage energy use, heat dissipation, and equipment size.

As data centers move toward 800V power distribution and 48V cooling systems to address growing workloads, they require faster, more efficient and more compact semiconductor solutions.

Allegro’s expanded portfolio includes new wide-body higher isolation versions of the ACS37030 and ACS37002 current sensors, the AHV85311 Power-Thru™ isolated gate driver for silicon carbide power systems, and an improved version of the code-free QuietMotion™ A89333 48V motor driver.

Together, these products help data center designers:

• Safely monitor and control high voltage 800V power systems
• Reduce energy lost during power conversion
• Fit more power capability into limited board and rack space
• Improve the efficiency and reliability of 48V cooling fans
• Simplify system design and reduce development time

Leading power solution provider Acbel Polytech has integrated Allegro’s high-speed current sensors into its latest high-density power solutions for AI data centers to support precise power control and system protection.

"As AI workloads continue to grow, data center power systems must deliver higher power density without compromising efficiency or reliability," said Rossi Lo, Head of Research and Development at Acbel. "As power distribution architectures evolve to support higher power and voltage levels, precise power control and rapid system protection are becoming increasingly critical, with current sensing playing a key role. By working closely with our industry partners and integrating new technologies into our power solutions, Acbel continues to advance our power solutions to meet the evolving requirements of next-generation AI data centers."

Supporting the Move to 800V Power Distribution

The ACS37030 and ACS37002 current sensors are now available in wide-body packages with a high comparative tracking index (CTI) mold compound enabling 6000V of galvanic isolation for enhanced electrical safety in high-voltage systems. The new sensors provide the fast, accurate current measurement needed to protect power supplies, battery backup units and capacitor banks when AI workloads create sudden changes in power demand.

The compact package also helps customers support 800V systems without increasing the size of the rack power shelf or power supply unit.

Allegro’s AHV85311 Power-Thru isolated gate driver for silicon carbide (SiC) FETs further simplifies high-voltage power designs by eliminating the need for a separate isolated power supply. This design simplification can reduce circuit-board space by up to 50%, helping designers build smaller power supplies and faster solid-state circuit breakers for 800V data center systems.

Improving the Efficiency of 48V Cooling Systems

Cooling is a major source of energy consumption in AI data centers. Allegro’s augmented QuietMotion™ A89333 motor driver helps improve the operation of 48V server cooling fans without requiring customers to develop complex motor-control software.

The A89333 features built-in control technology that automatically manages changing airflow conditions and supports the compact fans used in 1U, 2U and 4U servers. This helps system designers improve cooling efficiency, reduce development effort and maintain reliable operation as computing density increases. The same class of products are also designed to support pumps for liquid cooling systems.

Creating Value for Customers and Supporting Long-Term Growth

The shift to 800V power and 48V cooling is reshaping AI data center infrastructure. Allegro is using its expertise in current sensing, power management and motor control to help customers navigate this transition safely, efficiently and sustainably, advancing the all-electric society from the road to the rack.

“The key challenge for AI data centers is to use less energy and operate more efficiently while safely delivering significantly more computing power,” said Troy Coleman, Senior Vice President of Products at Allegro. “Our new products address these challenges at critical points in the system—from high-voltage power conversion and protection to intelligent cooling. This expands the value Allegro can provide as customers invest in the next generation of AI infrastructure.”

Based on third-party data and internal estimates, Allegro projects its serviceable addressable market (SAM) for AI data centers will reach $1.7 billion by fiscal 2031. Beyond AI data centers, the new products are well-suited for use in industrial automation, robotics and automotive on-board charging systems where efficient 48V operation, high-voltage isolation and compact design are increasingly important.

Allegro will showcase these technologies at electronica 2026 in Munich this November at Hall C6, Booth 129. For additional information, visit allegromicro.com/datacenter.

About Allegro MicroSystems

Allegro MicroSystems, Inc. is leveraging more than three decades of expertise in magnetic sensing and power ICs to propel electrification, automation, AI data center, and robotics 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 allegromicro.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical facts contained in this press release, including statements regarding the anticipated performance, customer benefits, cost savings, and future customer expectations and demands for products and projections related to future market size are forward-looking statements. These statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements.

In some cases, you can identify forward-looking statements by terms such as “will,” “expect,” “anticipate,” “plan,” “project,” “believe,” “estimate,” “potential,” or other similar expressions. No forward-looking statement is a guarantee of future performance, and you should avoid placing undue reliance on these statements.

Forward-looking statements are based on management’s current expectations and assumptions and are subject to risks and uncertainties. Actual results may differ materially from those expressed or implied in the forward-looking statements due to various factors, including, but not limited to: our ability to successfully develop and commercialize new products; customer adoption rates of emerging technologies; the timing and success of customer design wins; our ability to compete effectively; and other risk factors identified in our Annual Report on Form 10-K for the year ended March 27, 2026, as updated by our Quarterly Reports on Form 10-Q and other filings with the Securities and Exchange Commission. All forward-looking statements speak only as of the date of this press release, and except as required by law, we assume no obligation to update them.

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/3442b2e1-bc6c-4b25-a3a8-989b39fb5295