Allegro 電流センサー
Allegro は、20 年近くにわたり、電流センサー業界において市場に最初に製品を投入することでイノベーションを促進し、お客様に競争上の優位性を提供してきた実績を誇ります。当社の高度な IC は、お客様の設計においてより高い効率性と出力密度を実現するうえで役立ちます。当社の完全な統合ソリューションは、設計を容易にします。
当社の電気自動車用メイン走行モーターおよび補助インバータは市場をリードしています。また、OEM は DC-DC コンバータおよびオンボード充電器などの用途で Allegro に信頼を寄せています。
また当社は、住宅用および産業用の太陽光インバータ用途に最適な業界をリードする最大 1100Vrms の絶縁定格により高電圧用途を得意としています。
機能およびイノベーション
DC 使用電圧
当社のパッケージは競合製品を凌ぐ最大の使用電圧を SOIC-16 フットプリントで提供します。
過電流検出機能
Allegro の電流センサーは高精度アナログ出力に加え高速過電流検出機能を搭載しています。
大きな電流トランスに取って代わる高速センサー
大きな電流トランス (CT) に取って代わり、スマートな内蔵型高速センサーが搭載されています。
Browse by category
0～50 A 内蔵電流センサー IC
Allegro はフリップ チップ技術を使用する独自パッケージの開発を通じて、電流センサーのユニークなソリューションを提供します。この技術では、コアレス パッケージ デザインで優れた磁気結合を生成し、最大 4800 VRMS のガルバニック絶縁を提供します。
0 ～400 A 導線内蔵電流センサー IC
また、当社の高電流センサー IC パッケージは、高い精度と信頼性を提供する完全な統合ソリューションです。こうしたセンサーは、耐熱性があり、最も苛酷な用途の環境で非常に正確な開ループ電流センサーを実現する車載グレードのデバイスです。
電界センサー 0～1000 A 超センサー IC
このホール リニア IC は、オフセットおよび感度の双方についてユーザー プログラマブルであり、強磁性コアを含む用途で頻繁に使用される 1 mm 厚の KT パッケージ SIP に収納され、1500 A 以上の電流を検知するように設計されています。
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.
Brochure
Brochure: Lift Designs to the Next Level
Drive mobile robots with unmatched precision and control.
Technical Article
Rethink PCB Current Sensing
This article will discuss two new innovative approaches to measure currents up to 600 A in PCB: a near-lossless Hall-based current sensor with an integrated conductor and a non-invasive standalone core-free and shield-free differential Hall current sensor.
Technical Article
Solving EV Charging with High-Performance Gate Drivers and Current Sensors
Before EVs can reach true widespread adoption, one of the biggest obstacles is the accessibility, reliability and performance of EV chargers.
Technical Article
Solar Energy Systems – New Market Trends in Current Sensing
P0103 - As solar installations grow larger and more ambitious by the day, new trends in current sensing are emerging for this expanding energy market.
Technical Article
New 400 kHz Current Sensors Enable More Sustainable Designs in Switch-Mode Power Designs
Really Cool. Really Efficient. New 400 kHz current sensors enable more sustainable designs in switch-mode power designs.
Application Note
CMTI Comparison for Allegro Integrated Conductor Current Sensors
Common-mode transient immunity (CMTI) test injects transient voltages with high slew rates across the isolation barrier of the current sensor. During the transient event, the output stability of the device is observed.
Video
XtremeSense™ TMR Technology
Allegro MicroSystems empowers engineers to deliver top-tier solutions with XtremeSense™ TMR technology, enabling industry-leading precision and cost efficiency in current and position sensors.
Whitepaper
Next Generation Performance with XtremeSense™ TMR Technology
Introducing Allegro MicroSystems’ XtremeSenseTM TMR Technology
Application Note
ACS37030/2 High Bandwidth 5 MHz Current Sensor Enables High-Speed Control and Protection in Power Converter Applications
The ACS37030/2 is the first integrated 5 MHz bandwidth current sensor, which enables these systems to extract more benefit from faster and lowerloss switches.
Application Note
An Effective Method for Characterizing System Bandwidth in Complex Current Sensor Applications
This application note describes multiple methods for measuring
and characterizing system bandwidth, with a focus on
the impulse response method. Allegro’s ACS720 is the perfect device to validate the test methods outlined here.
Application Note
High-Current Measurement with Allegro Current Sensor IC and Ferromagnetic Core: Impact of Eddy Currents
AN296162 - The technique of measuring bus bar current with a surrounding ferromagnetic core is common knowledge. For highcurrent measurement above 200 A, Allegro recommends using a linear IC of the A136x family
Technical Article
Allegro is Driving the Future with Reliable eMobility Solutions
Techmezine speaks with Andreas P. Friedrich on Allegro’s Battery Management Solutions and latest innovation for EV.
Brochure
Brochure: Driving Change by Advancing Personal Mobility Through Cutting-Edge Technology
Our advanced sensor and power IC solutions are engineered specifically to meet the unique requirements of these designs, providing superior performance and reliability in harsh environments and under complex operating conditions.
Application Note
How to Analyze and Compare Allegro Current Sensor and ADC Error Components
AN296282: Allegro offers a wide variety of current sensors with analog voltage outputs, and in many applications, an analog-to-digital converter (ADC) converts the output voltage to a binary code.