BD7905BFS is a 6-channel driver IC that integrates all drivers necessary for optical disc driver. Low vibration, low noise,
and low heat operation have been realized by adopting 180° PWM driving system for spindle motor driver. The built-in
2-channel sled motor driver is used for the stepping motor.

3channel BTL driver, 2channel PWM driver and 3phase motor driver.
– ALL of the motor and actuator for CD-ROM, DVD-ROM etc.
 These mode is able to be selected by the two control terminals.
– ON/OFF of loading, and other 5channels, brake mode and gain select of spindle driver and standby mode.
 Built-in triangular-wave generator.
 Package SSOP-A54 has large power dissipation.
 Built in thermal-shut-down circuit.

                                                                                       -Spindle driver 
Efficient drive by current feedback 180deg PWM drive.
Built in current limit, hall bias, short brake, FG 3-phase mixed signal output and reverse protection circuit.
Low ON-Resistor. (RON=0.85Ω)

                                                                                        – Sled motor driver –
Efficient drive by current feedback PWM drive.
Built in 2channel for stepping motor.

                                                                                        -Actuator driver, Loading driver –
 Linear BTL drive system.