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FAN8403D3

Fairchild Semiconductor
Part Number FAN8403D3
Manufacturer Fairchild Semiconductor
Description 3-Phase BLDC Motor Driver
Published Mar 30, 2005
Detailed Description www.fairchildsemi.com FAN8403D3 3-Phase BLDC Motor Driver with PLL Features • • • • • • • 3-Phase BLDC motor drive IC ...
Datasheet PDF File FAN8403D3 PDF File

FAN8403D3
FAN8403D3

Overview
www.
fairchildsemi.
com FAN8403D3 3-Phase BLDC Motor Driver with PLL 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, undervoltage limit, thermal shut down) Description The FAN8403D3 is a monolithic integrated circuit.
It is suitable 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 FAN8403D3 FAN8403D3TF Package 28-SSOPH-375SG2 28-SSOPH-375SG2 Operating Temp.
−20°C ~ +80°C −20°C ~ +80°C Rev.
1.
0.
0 ©2002 Fairchild Semiconductor Corporation FAN8403D3 Pin Assignments AGC FGINFGS FGOUT S/S NC SGND 1 2 3 4 5 6 7 28 27 26 25 24 23 22 HWHW+ HUHU+ HVHV+ W FIN FAN8403D3 FIN LD ECLK PD EI EO FC VREG 8 9 10 11 12 13 14 21 20 19 18 17 16 15 V U NC RF PGND PVCC SVCC 2 FAN8403D3 Pin Definitions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name AGC FGINFGS FGOUT S/S NC SGND LD ECLK PD EI EO FC VREG SVCC PVCC PGND RF NC U V W HV+ HVHU+ HUHW+ HWU Output V Output W Output V Hall Amplifier Non Inverting Input V Hall Amplifier Inverting Input U Hall Amplifier Non Inverting Input U Hall Amplifier Inverting Input W Hall Amplifier Non Inverting Input W Hall Amplifier Inverting Input Pin Function Description AGC Amplifier Frequency Characteristics Correction FG Amplifier Inverting Input FG Pulse Output FG Amplifier Output (Open collect) Stop And Start Signal Ground Phase Locked Loop Detector Output (Open Collect) Ext...


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