L9942集成电路（IC）的电机驱动器控制器规格书PDF中文资料

L9942属于集成电路（IC）的电机驱动器控制器。由意法半导体集团制造生产的L9942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。

特性 Features

■ Two full bridges for max. 1.3 A load

(RDSON = 500 m)

■ Programmable current waveform with look-up

table: 9 entries with 5 bit resolution

■ Current regulation by integrated PWM

controller and internal current sensing

■ Programmable stepping mode: full, half, mini

and microstepping

■ Programmable slew rate for EMC and power

dissipation optimization

■ Programmable Fast-, Slow-, Mixed- and Auto-

Decay Mode

■ Full-scale current programmable with 3 bit

resolution

■ Programmable stall detection

■ Step clock input for reduced μController

requirements

■ Very low current consumption in standby mode

IS < 3 μA, typ. Tj  85 °C

■ All outputs short circuit protected with

openload, overload current, temperature

warning and thermal shutdown

■ The PWM signal of the internal PWM controller

is available as digital output.

■ All parameters are guaranteed for 3 V < Vcc <

5.3 V and for 7 V