BA5979S - 4-channel BTL driver for CD players

BA5979 - 4-channel BTL driver for CD players

BA5979S
The BA5979S is 4-channel BTL actuator and motor driver IC for CD-ROM players. It has three interface filtersand a pulse control PWM driver, while the spindle driver is separately controlled. The small BA5979S footprintincludes a 5V regulator (external PNP Tr required) and a built-in reset circuit for maximum miniaturization of applications.


Applications
CD players, CD-ROM drives, MD players and other optical disc devices

Features
1) Four-channel BTL driver
2) Three channels are PWM input direct-coupled type (built-in primary filter)
3) Wide dynamic range (5.6V (typical) at PreVCC=8V, PowVCC=8V, and RL=8?)
4) Internal thermal shut-down circuit
5) Internal 5V regulator (requires external PNP transistor)
6) Reset output pin
7) Output current can be muted using an external mute pin