The APX9351 Provides All the Circuitry for Sensor-less Speed Control of three-phase Brushless DC Motor
The Sine-wave Driver method will be better sound quality. The controller functions include start-up circuit, back-EMF commutation control, Pulse Width Modulation (PWM) speed control, lock protection, and thermal shutdown circuit. Using digital programming (OTP x 2 Bank), it’s much easier and adjustable for applications. The APX9351 is suitable for both game machine, CPU cooler and notebook fan that need silent drivers. It is available in XTDFN3x3-10 package
Source: ANPEC
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