LB11872H Datasheet - ON Semiconductor

LB11872H Three-Phase Brushless Motor Driver

Ordering number : EN7257B LB11872H Monolithic Digital IC For Polygonal Mirror Motors Three-Phase Brushless Motor Driver http://onsemi.com Overview The LB11872H is a three-phase brushless motor driver developed 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 min.

LB11872H 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

LB11872H-ONSemiconductor.pdf