TC646B Datasheet PDF - Microchip Technology

Features
• Temperature-Proportional Fan Speed for Acoustic Noise Reduction and Longer Fan Life
• Efficient PWM Fan Drive
• 3.0V to 5.5V Supply Range:
- Fan Voltage Independent of TC646B/TC648B/TC649B Supply Voltage
- Supports any Fan Voltage
• FanSense™Fault Detection Circuit Protects Against Fan Failure and Aids System Testing(TC646B/TC649B)
• Automatic Shutdown Mode for “Green” Systems
• Supports Low Cost NTC/PTC Thermistors
• Over-Temperature Indication (TC646B/TC648B)
• Fan Auto-Restart
• Space-Saving 8-Pin MSOP Package