Allegro MicroSystems launched the ACS37100, a magnetic current sensor with 10 MHz bandwidth for advanced power applications.
Quiver AI Summary
Allegro MicroSystems has launched the ACS37100, the first magnetic current sensor in the market capable of achieving a 10 MHz bandwidth, utilizing their XtremeSense™ TMR technology. This sensor is designed for high-speed applications such as electric vehicles, clean energy systems, and AI data center power supplies, offering a fast 50 ns response time and low noise levels of 26 mA RMS. It addresses challenges associated with the rapid switching of GaN and SiC FETs, providing the critical high-fidelity data needed for efficient and reliable control in demanding environments. The ACS37100 features reinforced isolation, low internal resistance, and operates across a broad temperature range, making it suitable for various automotive and industrial applications. Allegro emphasizes that this innovation represents a significant advancement over traditional Hall-based sensors, enhancing power conversion processes and overall system performance.
Potential Positives
- Introduction of the ACS37100, the first magnetic current sensor with a 10 MHz bandwidth, positions Allegro MicroSystems as an innovative leader in the power and sensing solutions market.
- The ACS37100 is tailored for high-demand sectors like electric vehicles and clean energy, potentially expanding Allegro's market share in these rapidly growing industries.
- With industry-leading specifications, including a 50 ns response time and exceptionally low noise, the ACS37100 enhances operational efficiency and reliability, promising significant value to customers.
- Allegro's advanced TMR technology in the ACS37100 solves critical challenges in high-voltage power conversion, reinforcing its reputation as a pioneer in automotive-grade technology.
Potential Negatives
- The press release focuses heavily on the technical specifications and advantages of the new sensor but does not disclose any customer adoption or market reception, leaving uncertainty about its commercial success.
- There is no mention of competitive landscape or how the new product fares against existing solutions, which could indicate potential challenges in gaining market share.
- The extensive technical details provided may alienate non-technical stakeholders or potential customers who are not familiar with advanced sensor technology, limiting the audience's understanding and interest.
FAQ
What is the ACS37100 magnetic current sensor?
The ACS37100 is the first magnetic current sensor with 10 MHz bandwidth, designed for high-speed applications like electric vehicles and clean energy systems.
How does the ACS37100 enhance system efficiency?
Its 50 ns response time and low noise of 26 mA RMS provide high-fidelity data for optimal control in fast-switching applications.
What technology does the ACS37100 utilize?
The sensor leverages Allegro’s advanced XtremeSense™ TMR (tunneling magnetoresistance) technology for superior performance and precision.
What applications are ideal for the ACS37100 sensor?
It is tailored for electric vehicles, clean energy power conversion, and AI data center power supplies, among other automotive and industrial uses.
What is the operating temperature range of the ACS37100?
The ACS37100 operates within a temperature range of -40°C to +150°C, meeting automotive-grade specifications.
Disclaimer: This is an AI-generated summary of a press release distributed by GlobeNewswire. The model used to summarize this release may make mistakes. See the full release here.
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Full Release
MANCHESTER, N.H., Oct. 21, 2025 (GLOBE NEWSWIRE) -- Allegro MicroSystems, Inc. (“Allegro”) (Nasdaq: ALGM), a global leader in power and sensing solutions for motion control and energy-efficient systems, today introduced the industry's first commercially available magnetic current sensor to achieve 10 MHz bandwidth featuring Allegro’s advanced XtremeSense™ TMR (tunneling magnetoresistance) technology. The new ACS37100 TMR current sensor helps power system designers master the control signal chain and unlock the full potential of fast-switching GaN and SiC FETs. Tailored to the needs of electric vehicles (xEVs), clean energy power conversion systems, and AI data center power supplies, the ACS37100 achieves an industry-leading 50 ns response time, providing the high-fidelity data needed for optimal efficiency and protection in demanding high-frequency applications.
Migration to GaN and SiC promises greater power density and efficiency, but their faster switching speeds create significant control challenges. At sub-megahertz frequencies, conventional magnetic current sensors lack the speed and precision to provide the high-fidelity, real-time data required for stable control and protection loops. This can leave advanced systems vulnerable to damage and may prevent them from operating at their full potential.
The ACS37100 is engineered to solve this control challenge. Its industry-leading bandwidth and response time provide the high-fidelity current sense feedback essential for demanding control loops in high-speed switching applications. This magnetic current sensor enables designers to confidently and reliably control faster systems, maximize efficiency, and increase power density. Leveraging advanced TMR technology, the device delivers exceptionally low noise of 26 mA root mean square (RMS) across the full 10 MHz bandwidth—enabling precise, high-speed current measurements for more accurate and responsive system performance.
“The ACS37100 marks a critical inflection point for magnetic sensors. Our TMR technology is enabling current sensors that are ten times faster and four times lower noise versus typical Hall-based products,” said Matt Hein, Business Line Director of Current Sensors at Allegro. “This leap in performance solves important challenges in high-voltage power conversion, especially related to wide bandgap solutions.”
The ACS37100 is engineered to minimize energy loss while maximizing operational efficiency and reliability, making it the ideal choice for a variety of automotive and industrial uses like xEV charging, clean energy power conversion, and AI data center power supplies.
ACS37100 Features and Benefits
- Highest bandwidth: DC to 10 MHz
- Fast response time: 50 ns
- Low noise: 26 mA RMS at full 10 MHz bandwidth
- Integrated Reinforced Isolation: 5 kV (60 seconds per UL 62368-1)
- Low loss: 1.2 mΩ internal conductor resistance
- Automotive Grade 0: -40°C to +150°C operating temperature range
The ACS37100 is available in an industry-standard SOICW-16 package that supports a working reinforced isolation up to 565 V RMS (basic 1,097 V RMS ) with 8 mm creepage and clearance. It features a voltage reference output and an adjustable overcurrent fault.
Explore the ACS37100 for datasheets, samples, and evaluation boards to accelerate your development: www.allegromicro.com/acs37100.
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
[email protected]
Allegro Contact:
Ram Sathappan
Vice President of Global Marketing and Applications
[email protected]
A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/01988269-afcc-46a9-87c8-f658c858bc61
