FAN8742

www.DataSheet4U.com FAN8741/FAN8742 Spindle motor and 6-CH actuator driver April 2005 FAN8741/FAN8742 Spindle Motor and 6-CH Driver [Spindle(PWM), Sled 2-CH(PWM) 4-CH(Linear)] Features Common Built-in thermal shutdown circuit (TSD) 8 Independent voltage sources Corresponds to 3.3V or 5V DSP 4 selectable mute inputs 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. Spindle Output PWM mode control FG output: open collector type Selectable brake(short & reverse brake) Built-in hall bias 180o commutation(compatible with conventional BLDC spindle motor) Built in short-through protection function The FAN8741G/FAN8742G is available in a 56-SSOP-HS package, which has high-power dissipation and the leadframe is exposed to the top side. The FAN8741MTF/FAN8742MTF is available in a 56-TSSOP-EP package, which is very thin and the leadframe is exposed to the bottom side. BTL(Sled 2-channels) Output PWM mode control Built in short-through prot...