描述 Description

The LB11876 is a 3-phase brushless motor driver developed for driving the polygonal mirror motor in plain-paper copiers and similar products. It can support any motor voltage and motor current required by the use of appropriate external components. The LB11876 adopts direct PWM drive to achieve drive with minimal power loss. This is a version of the LB11875 with a modified constraint protection function.

特性 Features

? Three-phase bipolar drive (direct PWM)
? PLL speed control circuit
? Dedicated external clock
? Clock divider switching function
? Hall sensor FG support
? Short-circuit braking function
? Built-in current limiter, thermal protection, constraint protection, and undervoltage protection circuits

簡介

LB11876屬于集成電路（IC）的電機(jī)驅(qū)動(dòng)器控制器。由制造生產(chǎn)的LB11876電機(jī)驅(qū)動(dòng)器，控制器產(chǎn)品屬于電機(jī)驅(qū)動(dòng)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(jī)或相關(guān)機(jī)電執(zhí)行器的電源。所實(shí)現(xiàn)的具體功能和特性集根據(jù)預(yù)期負(fù)載和預(yù)期應(yīng)用的特性有很大差異，范圍從用于有刷電機(jī)的簡單開環(huán)速度控制到基于步進(jìn)電機(jī)的高級(jí)閉環(huán)運(yùn)動(dòng)控制。