Description
●BD7907FS is a 6-channel driver IC that integrates all drivers necessary for CD-ROM, and DVD-ROM systems into a single chip. The built-in 2-channel sled motor driver is used for the stepping motor. Low heat operation can be achieved by applying the PWM driving system for sled and spindle motor drivers.
●Features
●1) Motor drivers for spindle, sled (2-channel) and loading, and actuator drivers for tracking are all
●integrated into a single chip.
●2) ON/OFF for each driver, brake mode switching of spindle and stand-by mode switching can be
●controlled by 2-wire serial data.
●3) Built-in triangular-wave generator
●4) SSOP-A54 package
●5) Built-in thermal shut-down circuit
●6) Highly efficient by applying the PWM drive and Low ON resistance POWER MOSFET
●7) Built-in current limit, hall bias, short brake, FG 3-phase synthesis output, and reverse protection circuit
●8) Highly efficient due to the PWM drive
●9) Built-in 2-channel for the stepping motor
●10) Low noise due to the linear BTL driver and smooth spin
●Applications
●CD-ROM, DVD-ROM, and any other equipment driven by optical DISC
