A3987SLPTR-T集成电路（IC）的电机驱动器控制器规格书PDF中文资料

A3987SLPTR-T属于集成电路（IC）的电机驱动器控制器。由Allegro MicroSystems制造生产的A3987SLPTR-T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。

描述 Description

The A3987 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 sixteenth step modes, with output drive capability of 50 V and ±1.5 A. The A3987 includes a fixed off-time current regulator, which has the ability to operate in slow or mixed decay modes.

Features and Benefits

▪ Low RDS(on) outputs

▪ Short-to-ground protection

▪ Shorted load protection

▪ 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