Microstepping Driver with Translator

The A3967 is a complete microstepping motor driver with built-in translator. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes, with output drive capability of 30 V and ±750 mA. The A3967SLB includes a fixed off-time current regulator that has the ability to operate in slow, fast, or mixed current-decay modes. This current-decay control scheme results in reduced audible motor noise, increased step accuracy, and reduced power dissipation.

FEATURES

■ ±750 mA, 30 V Output Rating

■ Satlington™ Sink Drivers

■ Automatic Current-Decay Mode Detection/Selection

■ 3.0 V to 5.5 V Logic Supply Voltage Range

■ Mixed, Fast, and Slow Current-Decay Modes

■ Internal UVLO and Thermal Shutdown Circuitry

■ Crossover-Current Protection

A3967属于集成电路（IC） > 电机驱动器，控制器。Allegro MicroSystems制造生产的A3967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。