Overview
The LB1825 is a three-phase brushless motor driver IC optimal for LBP polygon mirror and magneto-optical disk spindle motor drive.

Functions and Features
• Three-phase full-wave current control drive
• PLL speed control
• Internal 24-mode clock divisor switching
• Phase lock detector output
• FG/Hall FG selection
• Current limiter circuit
• 7 V stabilized power supply output pin
• Reverse torque braking
• Crystal oscillator circuit
• Internal/external reference frequency selection
• Built-in FG amplifier and FG pulse output
• Forward/reverse rotation switching
• Low power supply voltage protection circuit
• Thermal protection circuit