Overview

The LB1999M is a 3-phase brushless motor driver that is particularly appropriate for VCR capstan motor drivers.

Functions

• 3-phase full-wave drive

• Built-in torque ripple correction circuit (fixed correction ratio)

• Built-in current limiter circuit and control characteristics that include gain switching

• Upper and lower side output stage over-saturation prevention circuit that does not require external capacitors.

• FG amplifier with built-in Schmitt comparator

• Thermal shutdown circuit