Allegro MicroSystems, LLC Introduces New Bipolar Stepper And High Current DC Motor Driver IC

Combines Two Motor Drivers in One Package Reducing the PC Board Footprint and the Number of External Components

September 7, 2016

A5989 Product Image

Allegro MicroSystems, LLC announces a new 40 V motor driver IC capable of driving one stepper motor and one DC motor. The stepper driver outputs are rated up to 1.6 A and the DC driver at 3.2 A. Allegro’s A5989 includes fixed off-time pulse width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be controlled in full, half, and quarter step. This new device is targeted at the consumer, industrial and office automation markets with end applications that include, point of sale, lottery, ticketing, laser, inkjet and label printers, copiers, vending, and ATM machines.

The A5989 stepper driver PWM current regulator uses the Allegro® patented mixed-decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation. The DC driver can operate in forward, reverse, coast and brake modes with either fast or slow PWM decay control. 

Protection features include thermal shutdown with hysteresis, under voltage lockout (UVLO), crossover current, and over current protection. Low current sleep mode is included to improve efficiency.

The A5989 is supplied in a leadless 6 mm × 6 mm × 0.9 mm, 36-pin QFN package with exposed power tab for enhanced thermal performance. The package is lead (Pb) free, with 100% matte-tin leadframe 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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