A3983集成电路（IC）的电机驱动器控制器规格书PDF中文资料

A3983属于集成电路（IC）的电机驱动器控制器。由Allegro MicroSystems制造生产的A3983电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。

DMOS Microstepping Driver with Translator

The A3983 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes, with an output drive capacity of up to 35 V and ±2 A. The A3983 includes a fixed offtime current regulator which has the ability to operate in Slow or Mixed decay modes.

The translator is the key to the easy implementation of the A3983. Simply inputting one pulse on the STEP input drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. The A3983 interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened.

FEATURES

■ Low RDS(ON) outputs

■ Automatic current decay mode detection/selection

■ Mixed and Slow current decay modes

■ Synchronous rectification for low power dissipation

■ Internal UVLO and thermal shutdown circuitry

■ Crossover-current protection