Overview

The LB1971V is a bipolar sensorless motor driver that provides a reverse torque braking function and is appropriate for use as the spindle motor driver in CD and MD players. Since the LB1971V can drive motors without the use of Hall elements, this device can contribute to miniaturization, thinner form factors, and lower power dissipation in end products.

Functions and Features

• Three-phase bipolar sensorless drive

• Soft switching drive technique

• Reverse torque braking

• Standby mode power saving function

• FG outputs

• Can be operated from a 3-V supply.

• Thermal protection circuit