[原创] Allegro A3916双路DMOS全桥马达驱动方案

Allegro MicroSystems公司的A3916是新型低压双极步进马达或双路马达驱动IC,集成了所有的马达控制的功能,包括固定关断时间的PWM稳压器,单电源2.7 -15 V输入电压,每路输出电流高达1A,低RDS(ON)输出,低电流睡眠模式,过流保护,内部UVLO和热关断,集成了电荷泵.主要用在工业自动化,点负载,3D打印,医疗设备,CCTV,玩具市场和其它应用.本文介绍了A3916主要特性和优势,框图和典型应用电路以及演示板电路图,材料清单和PCB设计图.

Allegro MicroSystems, LLC announces a new low voltage bipolar stepper or dual DC motor driver IC. The A3916 device was designed for pulse-width-modulated (PWM) control of low-voltage stepper motors or dual DC motors and is capable of output currents up to 1 A per channel and operating voltages from 2.7 to 15 V. Allegro’s new motor driver IC is targeted at the office and industrial automation, point of sale, 3 D printing, medical, CCTV, toy markets, and other applications that run off single, Li-ion cell or 3 AA batteries.

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