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Product Variant Information section
Product Specification Section
Pricing Section

Stock: 0

On Order: 0
Factory Stock:Factory Stock: 3,300
Factory Lead Time: 6 Weeks
Minimum Order: 3,300
Multiple Of: 3,300
Quantity Web Price
3,300+ $0.85


Attributes Table
Supply Current-Max 400µA
Supply Voltage 3V to 5.5V
Duty Cycle-Min 0%
Duty Cycle-Max 100%
Operating Temp Range -40°C to +125°C
Features and Applications

The TC647BEOATR is a part of TC647B Series PWM Controller.It can sustain a standard temperature ranging from -40 to +125°C it comes in 8 pin SOIC package.

The TC647B is a new version of the existing TC647 fan speed controller. This device is a switch mode fan speed controller, which incorporates a new fan auto restart function. Temperature proportional speed control is accomplished using pulse width modulation.


  • Temperature-Proportional Fan Speed for Acoustic Noise Reduction and Longer Fan Life
  • Efficient PWM Fan Drive
  • 3.0 V to 5.5 V Supply Range:
    • Fan Voltage Independent of TC642B/TC647B Supply Voltage
    • Supports any Fan Voltage
  • FanSense™ Fault Detection Circuit Protects Against Fan Failure and Aids System Testing
  • Shutdown Mode for "Green" Systems
  • Supports Low Cost NTC/PTC Thermistors
  • Fan Auto-Restart
  • Space-Saving 8-Pin MSOP Package


  • Personal Computers & Servers
  • LCD Projectors
  • Datacom & Telecom Equipment
  • Fan Trays
  • File Servers
  • General-Purpose Fan Speed Control