描述 Description

LB11867FV is a single-phase bipolar driving motor pre-driver with the variable speed function compatible with external PWM signal. With a few external parts, a highly-efficient and highly-silent variable drive fan motor with low power consumption can be achieved. This product is best suited for driving of the server requiring large air flow and large current and the fan motor of consumer appliances.

特性 Features

? Single-phase full-wave driving pre-driver
? Low-saturation drive using external PMOS-NMOS enables high-efficiency low power-consumption drive
? Variable speed control possible with external PWM input
? Separately-excited upper direct PWM (f =30kHz) control method ensures highly silent speed control
? Current limiting circuit incorporated
? Chopper type current limiting made at startup and during lock
? Reactive current cut circuit incorporated
? Reactive current before phase changeover is cut, ensuring highly silent and low power-consumption drive
? Minimum speed setting pin
? Minimum speed setting
? Soft start setting pin
? Soft start setting
? Lock protection and automatic reset circuits incorporated
? Lock protection
? FG (rotation speed detection) output
? Easy Speed control
? Thermal shutdown circuit incorporated
? Thermal protection

應(yīng)用 Application

? Computing & Peripherals
? Industrial
? Server
? Vending Machine

簡介

LB11867FV屬于集成電路（IC）的電機(jī)驅(qū)動器控制器。由制造生產(chǎn)的LB11867FV電機(jī)驅(qū)動器，控制器產(chǎn)品屬于電機(jī)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(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)的高級閉環(huán)運(yùn)動控制。