A5939 and A5949: Three Phase Brushless DC Fan Controller


The A5939 and A5949 are both three phase brushless DC fan controllers that incorporate sinusoidal drives to minimize audible noise and vibration.

PRE-END-OF-LIFE: This device is in production, however, it has been deemed Pre-End of Life. The product is approaching end of life. Within a minimum of 6 months, the device will enter its final, Last Time Buy, order phase.

Date of status change: July 1, 2019.

Recommended Substitutions: For existing customer transition, and for new customers or new applications, contact Allegro sales.


Top Features

  • 180° sinusoidal drive - low audible noise and vibration
  • Drives 6 N-channel MOSFETs