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www.fairchildsemi.com

KA2822CD

3-Phase BLDC Motor Driver

Features

鈥?3-phase, full-wave, linear BLDC motor driver

with 2 hall sensors

鈥?Built-in soft switching drive circuit

鈥?300 or 360 RPM speed control

鈥?Snubberless

鈥?Built-in chip enable function

鈥?Built-in digital speed control circuit

鈥?Built-in current limit circuit

鈥?Index sensorless

鈥?Built-in TSD (Thermal shutdown)

鈥?Low saturation voltage

鈥?Digital input: TTL, 5V CMOS compatible

鈥?Built-in current-mode control circuit (I

PEAK

: 1A)

Description

The KA2822CD is a monolithic integrated circuit suitable

for a three-phase spindle motor driver of floppy disk drive

systems. It can make index signals without an index hall sen-

sor by special rotor magnetization.

28-SSOPH-375

1

Typical Application

鈥?3.5-inch floppy disk drive(FDD) spindle motor driver

Ordering Information

Device

KA2822CD

Package

28-SSOPH-375

Operating Temp.

0 ~ 75擄C

0 ~ 75擄C

KA2822CDTF 28-SSOPH-375

Rev. 1.0.0

漏2003 Fairchild Semiconductor Corporation

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