LB11861MC 是一款单相双极驱动电机驱动器,可轻松实施直接 PWM 电机驱动系统,且能效极高。LB11861MC 适用于个人计算机电源系统和 CPU 冷却风扇系统中的风扇电机驱动。
PC Power Supply system
CPU Cooling Fan System
Server
PC
Single-phase full-wave drive (16V, 1.2A transistors are built in)
External PWM control pin incorporated (f=16k to 50kHz) External PWM signal DUTY control to enable speed control to stop, medium speed, and full speed Slow-Decay regeneration to enable low power consumption and high-efficiency rotation control
Soft switching circuit incorporated Soft-SW circuit achieving small loss, low noise, and low vibration at a time of phase shift
Built-in regenerative diode (Di); only requires a minimal number of external components.
Built-in lock protection and automatic recovery circuits