The BA6780 and BA6780FP-Y are 2-channel driver IC for CD changers that inculdes a reversible, variable speed electronic governor and a reversible driver. On sets that have dual-rail power supplies, the BA6780 and BA6780FP-Y can be operated from just the negative supply to reduce influence on the positive power supply.
The input uses PWM control, and it is possible to directly input from a microprocessor running off the positive power supply.

Features
1) Output voltage can be freely set using the output voltage setting pin.
2) Internal mute function if the power supply voltage drops.
3) Thermal shutdown function. (Contains hysteresis)
4) PWM input.
5) Settable reference voltage output pin.
6) Wide operating supply voltage.

Applications
    Changers for CD players and MD play