Description
The FAN8422G 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
• Three-phase, full-wave, linear BLDC motor driver
• Commutation with only two hall sensors
• Generating index signal without an index hall sensor by special rotor magnetization
• Built-in soft switching drive circuit
• 300/360rpm selectable speed control circuit
• Snubberless output drive
• Chip enable function
• Built-in current limit circuit
• Built-in thermal shutdown circuit
• Low output saturation voltage
• TTL, 5V CMOS compatible digital inputs
• Built-in current-mode control circuit (IPEAK: 1A)

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