Allegro MicroSystems, LLC Announces New Low-Noise, High-Precision, Factory-Programmed Linear Hall-Effect Sensor IC

Designed with Extremely Low Noise and High Resolution

September 30, 2014

Worcester, MA – Allegro MicroSystems, LLC announces a new factory-programmable linear Hall-effect current sensor IC. Allegro’s A1366 has been designed to achieve high accuracy and resolution. The goal is achieved through new proprietary linearly interpolated temperature compensation technology that is programmed at the Allegro factory, which provides sensitivity and offset that are virtually flat across the full operating temperature range. The flat performance over temperature makes this IC ideally suited for current sensing applications. Temperature compensation is done in the digital domain with integrated EEPROM technology without sacrificing the analog signal path bandwidth. The A1366 high frequency operation was designed for HEV inverter, DC-to-DC converter, and electric power steering (EPS) applications, but can be used for any current sensing system requiring high bandwidth operation.

This ratiometric Hall-effect sensor IC provides a voltage output that is proportional to the applied magnetic field. Sensitivity and quiescent (zero field) output voltage are factory programmed with high resolution providing an accuracy of less than ±1%, typical, over the full operating temperature range. The sensor IC incorporates a highly sensitive Hall element with a BiCMOS interface integrated circuit that employs a low noise, small-signal high-gain amplifier, as well as a low-impedance output stage, and a propri¬etary, high bandwidth dynamic offset cancellation technique. These advances in Hall-effect technology provide an industry leading sensing resolution at the full 120 kHz bandwidth. The device’s broken ground wire detection is also built into the device for high reliability in automotive applications.

Device parameters are specified across an extended ambient temperature range: –40°C to 150°C. The A1366 sensor IC is provided in an extremely thin case (1 mm thick), 4-pin SIP (single in-line package, suffix KT) that is lead (Pb) free, with 100% matte tin lead frame plating.



Allegro MicroSystems, LLC は、高性能半導体の開発、製造、マーケティングにおけるリーダーです。Allegro の革新的なソリューションは、自動車などの急成長している分野で広く採用されているほか、オフィス オートメーション、工業、コンシューマー/通信市場でも注目されています。Allegro の本社は米国マサチューセッツ州ウースターにあり、設計、アプリケーション、営業サポートなどの拠点を世界中に展開しています。Allegro の詳細については、www.allegromicro.com をご覧ください。

 


記事に関するお問い合わせ:

Stephanie Fennelly
マーケティング広報担当ディレクター
電話: (508) 854-5363
sfennelly@allegromicro.com
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