描述 Description

LB11868V 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

? Variable speed control possible with external PWM input
? High Efficiency
? Current limiting circuit incorporated
? Over current protection
? Soft start setting pin
? Smooth booting
? Pch-FET kickback absorption setting pin
? Over voltage protection
? Lock protection and automatic reset circuits incorporated
? Destruction protection
? Thermal shutdown circuit incorporated
? Thermal protection
? Single-phase full-wave driving pre-driver
? Reactive current cut circuit incorporated
? Minimum speed setting pin
? Start setting pin of on time
? FG (rotational speed detection) output, RD (lock detection) output

應(yīng)用 Application

? Computing & Peripherals
? Industrial
? Server
? Air conditioner
? Projector

簡(jiǎn)介

LB11868V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LB11868V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。