Overview

The LB1981V is a three-phase brushless motor driver especially suited for use mainly with drum motors of portable VCRs.

Features

• Three-phase full-wave drive brushless sensorless motor drive

• Soft switching drive

• Power-saving speed control function due to motor voltage

• Use with 3V power supply possible

• Output residual voltage can be set in 4 ways

• Forward/reverse switching possible

• Built-in standby function (FG and PG amplifier only remain operative)

• Built-in braking circuit

• Built-in thermal shutdown circuit

• Built-in FG and PG amplifiers

• Built-in saturation prevention amplifier and midpoint control circuit