Allegro MicroSystems, LLC Introduces Two New Devices to Complement Existing Family of High Bandwidth Current Sensor ICs

1 MHz Bandwidth Current Sensor ICs with 3600 VRMS Isolation

December 21, 2017

ACS732 ACS733 Product image
Allegro MicroSystems, LLC adds a new generation of high bandwidth current sensor ICs to their existing family of devices. The Allegro’s ACS732 and ACS733 current sensor ICs provide a compact, fast, and accurate solution for measuring high-frequency currents in DC/DC converters and other switching power applications. These devices are the first 1 Mhz offerings from Allegro to offer 3600 VRMS galvanic isolation ratings. The current sensor ICs are Hall-effect-based and include user-configurable overcurrent fault detection. These features make them ideally suited for high-frequency transformer and current transformer replacement in applications running at high voltages.

The ACS732 and ACS733 are suitable for all markets, including automotive, industrial, commercial, and communications systems. They may be used in motor control, load detection and management, switch-mode power supplies, and overcurrent fault protection applications. The devices are fully calibrated at the Allegro factory to provide a high accuracy solution over the entire operating temperature range.

The fully integrated wide body SOIC-16 package has a typical resistance of 1 mΩ, providing low power loss and reduced bill of materials that allows for easy implementation. Applied current flowing through the copper conduction path generates a magnetic field that is sensed by the IC and converted to a proportional voltage. Current is sensed differentially in order to reject external common-mode fields. The current-carrying pins (pins 1 through 8) are electrically isolated from the sensor leads (pins 9 through 16). This allows the devices to be used in high-side current sensing applications without the use of high-side differential amplifiers, isolators, or other costly isolation techniques.

The ACS732 and ACS733 are provided in a small, low profile, surface-mount SOIC-16 wide-body package. This package is lead (Pb) free, with 100% matte-tin leadframe plating (suffix –T).


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
.

Copyright © 2018 Allegro MicroSystems, LLC

サイトマップ  |  個人情報保護に関する方針  |  Web マスターへのお問い合わせ

Follow us on: LinkedIn YouTube Google+ Follow Allegro on Twitter