描述 Description

The LB11872H is a three-phase brushless motor driver developed for driving the motors used for the polygonal mirror in laser printers and similar applications. It can implement, with a single IC chip, all the circuits required for polygonal mirror drive, including speed control and driver functions. The LB11872H can implement motor drive within minimal drive noise due to its use of current linear drive.

特性 Features

Three-phase bipolar current linear drive + midpoint control circuit.
PLL speed control circuit.
Speed is controlled by an external clock signal.
Supports Hall FG operation.
Built-in output saturation prevention circuit.
Phase lock detection output (with masking function).
Includes current limiter, thermal protection, rotor constraint protection, and low-voltage protection circuits on chip.
On-chip output diodes.

簡(jiǎn)介

LB11872H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LB11872H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(jiǎn)單開(kāi)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。