描述 Description

The LB11961 is a single-phase bipolar drive motor driver that easily implements direct PWM motor drive systems with excellent efficiency. The LB11961 is optimal for fan motor drive in personal computer power supply systems and CPU cooling fan systems.

特性 Features

? Single-phase full-wave drive (16V, 1.0A transistors are built in)
? Built-in variable speed function controlled by a thermistor input
? Built-in regenerative diode (Di); only requires a minimal number of external components.
? Built-in HB
? Minimum speed setting pin (allows full-speed mode operation at startup)
? Operates in full-speed mode when the thermistor is removed.
? Built-in lock protection and automatic recovery circuits
? FG (speed detection) and RD (lock detection) outputs
? Built-in thermal shutdown circuit

應(yīng)用 Application

? Personal computer power supply systems
? CPU cooling fan systems
? PC

簡(jiǎn)介

LB11961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LB11961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。