Allegro 电流传感器
近 20 年来，Allegro 一直在推动电流传感器行业的创新，它率先向市场推出了诸多产品以使客户保持竞争优势。我们的高级 IC 可帮助在您的设计中实现更高的效率和功率密度。我们的完全集成解决方案可以简化设计过程。
在电动车辆的主牵引电机和辅助逆变器领域，我们是市场领导者，众多 OEM 在直流/直流转换器和车载充电器等应用中使用 Allegro 的产品。
我们还擅长开发高电压产品，可以实现高达 1100Vrms 的行业领先额定隔离电压，适用于住宅和工业太阳能逆变器应用。
特性和创新
直流工作电压
我们的封装在 SOIC-16 尺寸下具有最高的工作电压
过流检测
Allegro 的电流传感器除具有精密的模拟输出外，还具有快速过流检测功能。
高速传感器替代了庞大的电流变压器
高速集成传感器是庞大的电流变压器 (CT) 的智能替代产品。
Browse by category
0 至 50 A 集成电流传感器 IC
Allegro 通过开发采用倒装芯片技术的专有封装，为电流感应提供独特的解决方案。此技术可在无芯封装设计中产生极佳的磁耦合效果，并提供高达 4800 VRMS 的电隔离。
具有集成导体的 0 至 400 A 电流传感器 IC
我们的高电流传感器 IC 封装是完全集成的解决方案，而且提供高精度和可靠性。这些传感器属于汽车级器件，能够承受十分苛刻的应用环境条件并提供高度精确的开环电流感应。
电场传感器 0 至 >1000 A 传感器 IC
这些霍尔线性 IC 封装在 1 毫米厚的 KT 封装 SIP 中，这种 SIP 通常用于使用铁磁芯且设计用于感应 1500 A 以上电流的应用，客户可以对这些 IC 的偏移和灵敏度进行编程。
Featured Products
ACS37220
The ACS37220 is a high-power-density 200A, 150kHz magnetic current sensor for applications requiring an isolation voltage below 100V.
CT455
The CT455 is a high bandwidth and low noise integrated contactless current sensor that enables high accuracy current measurements.
ACS37610
The ACS37610 is a truly coreless, high precision, Hall-Effect current sensor with common-mode field rejection and high bandwidth ideal for electric vehicle (EV) applications.
ACS37041 and ACS37042
ACS37041 and ACS37042 are fully integrated Hall-effect-based current sensor ICs that provide a galvanically isolated voltage output proportional to the sensed current.
Documentation & Resources
Blog
Magnetic Sensors are a Great Alternative to Traditional Shunt Resistors for Industrial Current Sensing
Magnetic sensors have entered the market, bringing a whole new level of performance, safety, and reliability to the table, much like what Allegro is doing with our current sensor portfolio. So, what makes them so special? Let's discuss.
Application Note
Allegro's LZ Current Sensor Package with High Isolation and Optimized Thermal Performance
Reinforced isolation and thermal management make the LZ current sensor package, Allegro’s six-pin fused-lead small-outline integrated circuit (SOIC) package—a superior choice for many applications.
Guide
CT220RMV-IS5 EVB222-15 Evaluation Board User Guide
The EVB222-15 evaluation board is designed to demonstrate the current sensing capabilities of the CT220 linear magnetic sensor from Allegro MicroSystems.
Application Note
Grounding Techniques for the ACS37800, Allegro's Power Monitoring IC: Ensuring Proper Device Functionality and Measurement Accuracy
The ACS37800 is a highly versatile and integrated power monitoring IC designed for accurate power measurement in both AC and DC applications
Application Note
Crosstalk Error Estimation and Reduction Through Busbar Design for the ACS37610 Coreless Current Sensor
This application note can be used to estimate the crosstalk error for adjacent notched busbars in combination with the ACS37610 coreless differential Hall sensor. This information can be useful when designing, for example, the three phases of a traction inverter.
Brochure
感测技术的未来: XtremeSense™ TMR 技术
相较于其他磁传感技术（如霍尔效应, AMR, GMR), Allegro 的 XtremeSense™ TMR 技术（隧道磁阻）实 现了最高的磁灵敏度和最低的功耗，可以在温度变化的 情况下保持性能稳定，同时封装尺寸很小，具备显著优 势。
Certificate
Certificate CB US 42876 UL LC Package
IEC system for mutual recognition of test certificates for electrical equipment (IECEE) CB scheme for the ACS702ELC, ACS702LLC, ACS712ELC, ACS713ELC, ACS714ELC, ACS714LLC, ACS715ELC, ACS715LLC, ACS722LLC, ACS723LLC, ACS730LLC, ACS730KLC and ACS71240LLCB.
Certificate
Certificate of Compliance 20200511-E316429
This is to certify that representative samples of the product as specified on this certificate were tested according to the current UL requirements for the ACS7XXX and ACS7XXXX.
Certificate
CB Certificate US-32210-M3-UL
IEC system for mutual recognition of test certificates for electrical equipment (IECEE) CB scheme for the ACS717, ACS718, ACS722, ACS723 and ACS724.
Application Note
Q-Rift PCB Design for ACS37610 Differential Hall Coreless Sensor to Minimize Position Tolerance Error and Improve Thermal Handling
When designing and integrating new sensing elements into an application, the desire to reduce the cost and increase the power density of the system is a common theme that typically raises questions about the design of the geometry and the sensing elements.
Certificate
Certificate CB US 42934 UL LZ Package
IEC system for mutual recognition of test certificates for electrical equipment (IECEE) CB scheme for the ACS37010LLZA, ACS37012LLZA, ACS37029LLZA, ACS37030LLZA, ACS37031LLZA and ACS37032LLZA.
Guide
CT432-50AC Evaluation Board User Guide
The CT432 is a high bandwidth and ultralow-noise integrated contact current sensor that uses Allegro patented XtremeSense™ tunnel magnetoresistance (TMR) technology.
Certificate
Certificate CB US 36315 UL MA Package
IEC system for mutual recognition of test certificates for electrical equipment (IECEE) CB scheme for the ACS717, ACS718, ACS722, ACS723 and ACS724.
Guide
CTD456-BB-06B5 Evaluation Board User Guide
The Allegro CTD456 evaluation board demonstrates the advantages of the CT456 high dV/dt optimized XtremeSense™ TMR coreless current sensor in enabling high-accuracy current measurements for many consumer, enterprise, and industrial applications.
FAQ
Allegro Current Sensor Evaluation Boards
Allegro Current Sensor Evaluation Boards offer a convenient method for quickly evaluating Allegro Current Sensors in a lab environment without needing a custom circuit board.