LB11861MC

单相全波风扇电机驱动器 Single-Phase Full-Wave Fan Motor Driver

The is a single-phase bipolar drive motor driver that easily implements direct PWM motor drive systems with excellent efficiency. The LB11861MC is optimal for fan motor drive in personal computer power supply systems and CPU cooling fan systems.

Features

---

 |

.

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

.

FG speed detection outputs incorporated

.

Built-in thermal shutdown circuit.