Allegro新款ACS37800 IC我ntegrates Power, Voltage, and Current Monitoring with Reinforced Isolation

January 06, 2021


Allegro新款ACS37800 IC我ntegrates Power, Voltage, and Current Monitoring with Reinforced Isolation

January 06, 2021

Single-chip solution simplifies industrial and home automation applications seeking to reduce board space and optimize energy efficiency

Allegro MicroSystems, Inc. (“Allegro”) (Nasdaq: ALGM), a global leader in sensing and power, announced the launch of the ACS37800, a Hall-effect power monitoring IC for single-phase AC and DC solutions in a small PCB footprint. Another industry-first innovation, Allegro’s ACS37800 is an integrated power monitoring chip that allows simultaneous measurement of power, voltage, and current for AC and DC signals with an isolation rating of up to 1480 Vpk in a small SOIC16W package, reducing the solution BOM size, cost, and complexity.

"Our newest power monitoring chip is a gamechanger for IoT devices, smart lighting, data centers, and telecom applications, in particular," says Shaun Milano, Business Unit Director for Current Sensors at Allegro. "We’ve improved on our first-generation integrated solution by adding the ability to measure voltage, current and power in AC as well as DC at the same time – and with reinforced isolation, our customers can eliminate many expensive components on their PCBs. The ACS37800 dramatically simplifies measuring power in a unique single-chip solution."

The new ACS37800 allows devices to easily track power consumption and to optimize energy use by detecting reduced power efficiency for predictive maintenance. This makes the ACS37800 ideal for motor control, building automation, and a variety of green industrial applications.


Offered in an efficient SOIC16 footprint, the ACS37800further reduces PCB size and significantly reduces bill of materials (BOM) cost and complexity by eliminating the need for many components that competitive solutions require in similar conditions.For example, the integrated517 Vrmsreinforced isolation enables current sensing without expensive光隔离器, Rogowski coils, oversized current transformers, isolated operational amplifiers, or shunt resistors.

Thanks to its onboard regulator, the ACS37800 can be powered from the same voltage supply as the system microprocessor (5 V or 3.3 V).


The right balance of programmability for a broad range of applications

Thanks to impressive levels of flexibility and configurability, users can program the ACS37800 to fit a variety of unique application needs. The device allows designers to choose from a factory-programmed I2C or SPI interface, depending on whether the user prefers low noise or multiple addressing—and in I2C mode, it provides zero-crossing detection pinout, making LED dimming control easy. Users can also program thresholds for under/overvoltage, current/voltage gain and offset, and overcurrent trip point via EEPROM, allowing them to optimize their system from ±30 A to ±180 A and from –40°C to 125°C.

Combining Allegro's factory programming of sensitivity and offset with vast user programmability allows designers to balance between time-to-market and customization in the increasingly competitive energy-efficient applications, such as:

  • Smart lighting
  • 智能电器和智能插头
  • 工业电动机控制
  • 服务器和电信电源


有关Allegro创新电流传感器系列的数据表和更多详细信息,包括ACS37800,请访问 Contact your local sales office for more information and to request samples today.

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亚博棋牌游戏Allegro MicroSystems正在重新定义传感和电源技术的未来。从绿色能源到先进的移动和运动控制系统,我们的团队致力于开发智能解决方案,推动世界向前发展,为我们的客户提供竞争优势。凭借全球工程、制造和支持,Allegro是全球大型企业和区域市场领导者值得信赖的合作伙伴。访问