Allegro MicroSystems redefines magnetic current sensing technology to provide more compact integrated solutions for industrial, automotive, and clean
2024-07-15
The new sensor solution can improve design efficiency and reliability by enhancing protection functions
Allegro MicroSystems (NASDAQ: ALGM) (hereinafter referred to as Allegro), a global leader in motion control and energy-saving system sensing technology and power semiconductor solutions, announced the launch of a new high-power current sensor ACS37220 and the pre release of a compact patch encapsulated magnetic current sensor ACS37041. Compared to current sensing solutions based on discrete parallel resistors and operational amplifiers, Allegro's new solution can improve efficiency and reliability, enhance system protection functionality, and achieve a smaller Bill of Materials (BOM).
Traditional splitter solutions require multiple components, occupy a large amount of circuit board space, and often require more layers of PCBs and heat sinks to maintain acceptable thermal performance. These factors inevitably increase weight and size, as well as design complexity, often leading to increased costs and production time.
Allegro's new sensors have the characteristics of smaller footprint, higher efficiency, and simpler integration, which can meet the challenges of many industries today. ACS37220 is designed specifically to replace high-power sensing resistors and can be used for high current monitoring applications up to 200A. ACS37041 adopts a compact SOT23-W package with high integration, suitable for a wide range of current sensing applications up to 30A.
We are delighted to launch ACS37220 and ACS37041, which have small footprint and low power consumption characteristics, providing customers with an excellent alternative to traditional splitters, "said Shaun Milano, Director of Allegro's Current Sensor Business Unit." Allegro's new current sensors demonstrate the company's commitment to driving innovation and developing energy-efficient sensor technology to meet the needs of customers and the design industry.
Allegro's new current sensor integrates shunt resistors, shunt amplifiers, and other passive component functions into a single package. Compared with traditional splitters, the new product has a compact design and higher efficiency, making it an ideal low-voltage (<100V) sensor with the following advantages:
• Lower heat dissipation: The conductor resistance of the integrated magnetic current sensor lead frame is lower, resulting in lower system temperature.
• Simplified design: Due to the fewer components that need to be mounted and wired, PCB layout is simpler and more intuitive.
Innovative packaging: Allegro's integrated sensor solution integrates the functionality of traditional shunt resistor circuits into a single package, simplifying component mounting and streamlining the design process, while reducing the overall bill of materials (BOM).
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