Details
Intrduction
The LB11872H is a three-phase brushless motor driverdeveloped for driving the motors used for the polygonal mirror in laser printers and similar applications. It can implement, with a single IC chip, all the circuits required for polygonal mirror drive, including speed control and driver functions. The LB11872H can implement motor drive within minimal drive noise due to its use of current linear drive.
Functions and Features
• Three-phase bipolar current linear drive + midpoint
control circuit
• PLL speed control circuit
• Speed is controlled by an external clock signal.
• Supports Hall FG operation.
• Built-in output saturation prevention circuit
• Phase lock detection output (with masking function)
• Includes current limiter, thermal protection, rotor
constraint protection, and low-voltage protection circuits
on chip.
• On-chip output diodes.
The LB11872H is a three-phase brushless motor driverdeveloped for driving the motors used for the polygonal mirror in laser printers and similar applications. It can implement, with a single IC chip, all the circuits required for polygonal mirror drive, including speed control and driver functions. The LB11872H can implement motor drive within minimal drive noise due to its use of current linear drive.
Functions and Features
• Three-phase bipolar current linear drive + midpoint
control circuit
• PLL speed control circuit
• Speed is controlled by an external clock signal.
• Supports Hall FG operation.
• Built-in output saturation prevention circuit
• Phase lock detection output (with masking function)
• Includes current limiter, thermal protection, rotor
constraint protection, and low-voltage protection circuits
on chip.
• On-chip output diodes.