Overview
The LB1991V is a 3-phase brushless motor driver IC tha is optimal for driving the capstan motor in portable VCR products.

Functions
• 3-phase full-wave voltage drive technique (120° voltage-linear technique)
• Torque ripple correction circuit (overlap correction)
• Speed control technique based on motor voltage and current control.
• Built-in FG comparators
• Built-in thermal shutdown circuit