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 sensor by special rotor magnetization.

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 (IPEAK: 1A)

Typical Application
• 3.5-inch floppy disk drive(FDD) spindle motor driver