描述 Description

The LB11873 is a 3-phase brushless motor driver developed for driving the polygonal mirror motor used in plain-paper copiers and similar products. This IC can implement the circuits required for polygonal mirror motor drive (speed control and driver circuits) in a single chip. The LB11873 implements low-noise/low-vibration PWM drive by changing the current at phase switching gradually to reduce motor noise.

特性 Features

Three-phase bipolar drive (quiet direct PWM)
PLL speed control circuit
Hall sensor FG support
Dedicated external clock
Brake mode switching circuit (free running and reverse braking)
Phase lock detection output (with masking function)
Built-in current limiter, constraint protection, undervoltage protection, thermal protection, and CLK line disconnection protection circuits
Input pins support 3V system microcontrollers

簡介

LB11873屬于集成電路（IC）的電機驅(qū)動器控制器。由制造生產(chǎn)的LB11873電機驅(qū)動器，控制器產(chǎn)品屬于電機驅(qū)動器和控制器電源管理集成電路 (PMIC) 系列，可用于控制或操作從某電源施加到電機或相關(guān)機電執(zhí)行器的電源。所實現(xiàn)的具體功能和特性集根據(jù)預期負載和預期應(yīng)用的特性有很大差異，范圍從用于有刷電機的簡單開環(huán)速度控制到基于步進電機的高級閉環(huán)運動控制。