LB1876中文资料LB1876: Three-Phase Brushless Motor Driver for Polygon Mirror Motors数据手册ONSEMI规格书

描述 Description

The LB1876 is a driver for polygon mirror motors such as used in laser printers and similar equipment. It incorporates all necessary circuitry (speed control + driver) on a single chip. Direct PWM drive enables drive with low power loss.

特性 Features

3-phase bipolar drive
Direct PWM drive technique
Built-in lower side output diode
Output current limiter
Reference clock input circuit (FG frequency equivalent)
PLL speed control circuit
Phase lock detector output (with masking function)
Built-in protection circuitry includes current limiter, restraint protection, overheat protection, low-voltage protection, etc.
Brake method switching circuit (free-run or reverse torque)
5V regulator output
Power save function

简介

LB1876属于集成电路（IC）的电机驱动器控制器。由ONSEMI制造生产的LB1876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。