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APX9370
Three-Phase Sensor-Less Fan Motor Driver
Features
General Description
• Three-Phase Full-Wave Sensor-Less Drive
The APX9370 is a three phase full wave DC brushless
• Low Quiescent Current (6mA Typical)
motor driver with PWM variable speed control, current
• Built-In External PWM Speed Function
limit and soft start features suitable for the fan of personal
• Minimum Speed Setting
computer¡¦s power supply, CPU cooler and server. Ad-
• Direct PWM Input Speed Control (Circuit 2)
equate SS pin capacitor could reduce the peak current at
• Built-in Current Limit Circuit (2A Typical)
power on and lock-restart mode.