L6219R中文资料步进电机驱动器数据手册ST规格书

描述 Description

The L6219R is a bipolar monolithic integrated circuits intended to control and drive both winding of a bipolar stepper motor or bidirectionally control two DC motors.The L6219R with a few external components form a complete control and drive circuit for LS-TTL or microprocessor controlled stepper motor system.The power stage is a dual full bridge capable of sustaining 10V and including four diodes for current recirculation.

A cross conduction protection is provided to avoid simultaneous cross conduction during switching current direction.

An internal pulse-width-modulation (PWM) controls the output current to 500mA with peak start-up current up to 1A. Wide range of current control from 500mA (each bridge) is permitted by means of two logic inputs and an external voltage reference. A phase input to each bridge determines the load current direction. A thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits.

特性 Features

• Low output saturation voltage
• Internal pwm current control
• Internal thermal shutdown
• Able to drive both windings of bipolar stepper motor
• Wide voltage range 4.5V to 10V
• Output current up to 500mA each winding
• Built-in protection diodes
• Designed for unstabilized motor supply voltage
• HAlf-step, full-step and microstepp-ing mode

简介

L6219R属于集成电路（IC）的电机驱动器控制器。由制造生产的L6219R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。