LB11946集成电路（IC）的电机驱动器控制器规格书PDF中文资料

LB11946属于集成电路（IC）的电机驱动器控制器。由安森美半导体制造生产的LB11946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。

Overview

The LB11946 is a stepping motor driver IC that implements PWM current control bipolar drive with a fixed off time. This IC features 15 current setting levels using a fixed VREF voltage and support for micro-stepping drive from 1-2 phase excitation drive to 4W1-2 phase excitation drive. This device is optimal for driving stepping motors such as those used for carriage drive and paper feed in printers.

特性 Features

• PWM current control (with a fixed off time)

• Logic input serial-parallel converter (allows 1-2, W1-2, 2W1-2, and 4W1-2 phase excitation drive)

• Current attenuation switching function (with slow decay, fast decay, and mixed decay modes)

• Built-in upper and lower side diodes

• Simultaneous on state prevention function (through current prevention)

• Noise canceller function

• Thermal shutdown circuit

• Shutoff on low logic system voltage circuit

• Low-power mode control pin