Overview
The LB11922 is a pre-driver IC designed for constantspeed control of 3-phase brushless motors. It can be used to implement a motor drive circuit with the desired output capacity(voltage, current) by using discrete transistors for the output stage. It implements direct PWM drive for minimal power loss.

FEATUREs
• DirectPWM drive output
• Speed discriminator + PLL speed control circuit
• Speed lock detection output
• Built-in crystal oscillator circuit
• Forward/reverse switching circuit
• Braking circuit (short braking)
• Full complement of on-chip protection circuits, includinglock protection, current limiter, and thermal shutdown protection circuits.