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FT3103
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Product Features
  Hall sensorless   Built-in PreDriver
  Quasi sine drive   Built-in operational amplifier
  Closed-loop speed control   Bulit-in thermal shutdown protection
  FG and RD output   Built-in under voltage protection
  Positive and negative rotation   Over current protection
  Auto-restart mode   Phase loss protection
  Locked-rotor protection    Brake function

 

Application Specification
FT3103 is a three phase brushless DC motor drive chip designed for low-voltage application. The chip allows the removal of rotor position sensors so motor structure can be simplified. FT3103 is effective in reducing solution cost and improving motor system reliability. It has robust starting capability. It uses built-in Pre-driver to drive external MOS directly so the components on the peripheral circuit can be reduced by 1/3 and solution cost can be reduced significantly. The chip can be driven in the voltage range DC-3.7V to DC-28V. It has closed-loop speed control function and the speed control parameters can be set conveniently.
 
     Application Features
      
FT3103 is designed according to strict industrial standards and produced by advanced high-voltage BCD processing. Meeting many industrial and commercial application needs, FT3103 is especially suited for the applications which have strict requirements on speed performance. With advantages of closed-loop speed control, small package and high integration, FT3103 can adapt to small size, wide power supply and wide temperature range applications. FT3103 has been widely used in low-voltage cooling fans, fans, small home appliances and pumps.
 
 

 

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