描述 Description

Suitable for a 3-phase BLDC (Brush-Less Direct Current) spindle motor driver with PWM, the monolithic FAN8741/FAN8742 IC also includes 2-ch motor drivers with PWM for sled motors and 4-ch linear drivers which drive the focus actuator, tracking actuator, tilt actuator, and loading motor in optical media applications. Designed specifically for high-speed/high-density optical media applications, the FAN8741/FAN8742’s power stage is created by D-MOS transistors which have extremely low RDSON. This enables less heat generation and guarantees improved reliability.

特性 Features

Common

? Built-in thermal shutdown circuit (TSD)

? 8 Independent voltage sources

? Corresponds to 3.3V or 5V DSP

? 4 selectable mute inputs

Spindle

? Output PWM mode control

? FG output: open collector type

? Selectable brake(short & reverse brake)

? Built-in hall bias

? 180° commutation(compatible with conventional BLDC spindle motor)

? Built in short-through protection function

BTL(Sled 2-channels)

? Output PWM mode control

? Built in short-through protection function

BTL(Other 4-channels)

? Output linear mode control

Typical Applications

? CD-ROM

? CD-RW

? DVD-ROM

? DVD-RAM

? DVD Player (DVDP)

? Other compact disk media

? Game consoles