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The BU6909AGFT is a 5V single-phase full-wave FAN motor driver with built in HALL element. It is part of the DC brushless FAN motor driver series. BU6909AGFT is built in a compact package and provides Auto Gain Control function (AGC), silent drive by soft switching, and low battery consumption via its standby function. BU6909AGFT is best used for notebook PC cooling FANs.