The LB11660FV is a single-phase bipolar drive half-predriver motor driver that can easily implement a direct PWM driver motor driver circuit with excellent efficiency. The LB11660FV is particularly well suited for the miniature fans used in servers.
•Single-phase full-wave drive (15V, 1.5A transistors are built in)
Half predriver with integrated high side transistor
•Built-in variable speed function controlled by an external input
The LB11660FV can implement quiet, low-vibration variable speed control using externally clocked high side transistor
direct PWM drive.
•Minimum speed setting pin
•Current limiter circuit (The limit value is determined by Rf; IO= 1A when RF = 0.5Ω)
•Built-in kickback absorption circuit
•Soft switching circuit makes low current consumption, low loss, and low noise drive possible at phase switching
•Built-in lock protection and automatic recovery circuits (built-in on/off ratio switching circuit controlled by the supply voltage)
•FG (speed detection) output
•Built-in thermal protection circuit (design guarantee)