■ Overview

The AN8783SB employs one channel of power op-amp. system and three channels of H-bridge system. Two channels out of three channels of H bridge method are a current feedback system. So this IC is optimum for driving an actuator and a motor of CD/CD-ROM drive. It comes with a surface mount package which excels in a heat radiation characteristic.

■ Features

• Little phase delay due to current feedback system (2-channel for actuator)

• 4 modes of forward, reverse rotations, braking and standby can be selected from channels for load ing motor (H-bridge method) by a digital signal from a microcomputer.

• Wide output dynamic range regardless of refer ence voltage of the system

• Setting the input level of a driver by an external resistor is possible.

• PC (power cut) function built-in (common for ch. 1, ch. 3 and ch. 4)

• Thermal shut-down circuit built-in (with hysteresis)

■ Applications

• CD/CD-ROM drive