Features

• • Absolute maximum voltage 25V
    
  • Operating input range 3V ~ 18V
    
  • Embedded hall sensor with high sensitivity ±20 Gauss
    
  • Built-in power MOSFET with peak current 1.2A
    
  • Closed-loop fan speed control within ±5% accuracy of rotation speed
    
  • Support soft start with programmable duty cycle
    
  • Support timing control for better performance
    
  • Support auto-phase control
    
  • Built-in soft-switch function with programmable duration
    
  • Programmable fan speed curve set by 6 points
    
  • 12.4Hz ~ 100KHz PWM input frequency range with reverse-able polarity
    
  • Support current-limit setting internally with multi-levels
    
  • Built-in thermal protection circuit (160°C)
    
  • Built-in over-voltage protection
    
  • Built-in programmable period for lock detection and auto recovery
    
  • Various open-drain tachometers: FG, RD, Stop RD and Reverse RD
    
  • Wide product selection to support 4, 6 or 8 magnetic poles
    
  • Built-in On-line Tuning for iterative performance tuning
    
  • 2-wired communication channel to program parameters
    
  • Parameters can be programmed twice
    
  • Compact TSOT23-6G / TSOT23-6L package