Overview

The LB11993W is a 3-phase brushless motor driver for digital video camera. It integrates, on a single chip, three motor driver functions (for capstan, drum, and loading motors) for driving a tape. This IC also includes 4-channel operation amplifiers (2 channels for reel and 2 channels for general purpose), which significantly reduces the number of peripheral components required.

Functions

• Capstan unit

Voltage linear drive

Built-in torque ripple compensation circuit

FG amplifier

• Drum unit

Current drive

Sensorless drive

FG amplifier

PG amplifier

• Loading unit

2-channel reel amplifiers

• Common unit

Thermal shutdown circuit

2-channel OP amplifiers