KA2822CD Datasheet, PDF (1/14 Pages) Fairchild Semiconductor – 3-Phase BLDC Motor Driver

KA2822CD
3-Phase BLDC Motor Driver
www.fairchildsemi.com
Features
• 3-phase, full-wave, linear BLDC motor driver
with 2 hall sensors
• Built-in soft switching drive circuit
• 300 or 360 RPM speed control
• Snubberless
• Built-in chip enable function
• Built-in digital speed control circuit
• Built-in current limit circuit
• Index sensorless
• Built-in TSD (Thermal shutdown)
• Low saturation voltage
• Digital input: TTL, 5V CMOS compatible
• 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
• 3.5-inch floppy disk drive(FDD) spindle motor driver
Ordering Information
Device
Package
KA2822CD 28-SSOPH-375
KA2822CDTF 28-SSOPH-375
Operating Temp.
0 ~ 75°C
0 ~ 75°C
©2003 Fairchild Semiconductor Corporation
Rev. 1.0.0