Overview
The LB1824 produces the direct PWM drive output appropriate for the brushless motors used in office data processing (OA) equipment, and integrates on a single chip the speed control circuits, FG amplifier, and other circuits required to form the drive circuit.

FEATUREs
• Breakdown voltage: 30 V, output current: 2.5 A
• Direct PWM drive output
• Crystal oscillator circuit
• Speed discriminator plus PLL speed control system
• Forward/reverse switching circuit
• Start/stop switching circuit
• Current control circuit
• Overheating protection circuit
• Built-in FG amplifier
• Lock detection output