Overview
The LB11824M is a direct PWM drive predriver IC for use with three-phase power brushless motors. The
LB11824M can implement a motor drive circuit with the desired output capacity (voltage and current) by using
appropriate external transistors. This device is optimal for motor drive in larger home appliances such as air
conditioners and on-demand hot water heaters.

Functions and Features
• Three-phase bipolar drive
• Direct PWM drive
• Built-in forward/reverse switching circuit
• Full complement of built-in protection circuits, including current limiter, undervoltage protection circuit, motor lockup protection circuit, and thermal protection circuit.
• Can be controlled by either a command voltage or the duty of an input PWM signal.
• Provides three types of Hall-effect element signal pulse outputs.