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PL393W   24V Single-phase Smart DC Fan IC with 2 Modes PWM speed control


The PL393W is a variable speed DC fan motor driver IC with built-in Hall sensor. The built-in dynamic offset cancellation of pre-amplifier stage achieves optimal symmetrical magnetic sensing. The output driver provides a linear drive to eliminate switching noise. This IC is an optimal solution with speed controllable by PWM input signal for DC brushless fan application. The supply voltage range is from 4.5V to 30V.


  • Built-in hall sensor
  • Single phase full wave driver
  • Linear Soft switching output driver
  • Motor locked protection and automatic restart
  • 2-Mode Speed controllable DC voltage / PWM duty cycle input
  • Quick start
  • FG or RD output
  • Current limit protection
  • Thermal protection
  • Built-in Zener diode
  • High balance and low thermal drift magnetic sensing
  • Low power consumption and high driving efficiency
  • RoHS compliance
  • AEC Q100 qualified(PL393W-A only)


    Single coils DC brushless motor


    SOP10F/ DFN10(3x3mm)
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