©2002 Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev.1.0.0

Features

• 3-Phase BLDC motor drive IC with speed control

• Phase Locked Loop (PLL) speed control

• Built-in phase locked detector output

• External clock for control of motor speed

• Built-in FG amplifier and FG schmidt comparator

• Built-in integrating amplifier with phase error

• Auto Gain Control (AGC) circuit for compensation hall

amplifier

• Built-in protection circuits (over-current limit, under-

voltage limit, thermal shut down)

Description

The FAN8403D3 is a monolithic integrated circuit. It is suit-

able for polygon mirror motor of laser beam printer (LBP).

28-SSOPH-375SG2

Typical application

• Polygon mirror motor for laser beam printer

• Polygon mirror motor for facsimile

• Polygon mirror motor for duplicator

• Polygon mirror motor for multi-function printer

• General 3 phase BLDC motor

Ordering Information

Device

Package

Operating Temp.

FAN8403D3

28-SSOPH-375SG2

−20°C ~ +80°C

FAN8403D3TF

28-SSOPH-375SG2

−20°C ~ +80°C

FAN8403D3

3-Phase BLDC Motor Driver with PLL