Overview

The LB1894M is a 3-phase brushless motor driver for use in CD-ROM spindle motors.

Function and Features

• 3-phase bipolar brushless motor driver.

• Voltage linear drive, enabling the external capacitance to be reduced.

• Thermal shutdown circuit built-in.

• Overcurrent protection circuit built-in.

• V-type control amplifier built-in.

• 2-step switching control gain.

• Control gain switchable using operational amplifier.