5V Single-phase Full-wave Fan Motor Driver - BU6909AGFT

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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BU6909AGFT-TL Active TSSOF6 3000 3000 Taping Yes
Grade Standard
Type Driver
Vcc (Max.)[V] 7.0
Power Supply Voltage (Max.)[V] 5.5
Power Supply Voltage (Min.)[V] 1.8
Iout (Max.)[A] 0.8
Drive Type PWM Soft SW
Speed Control PWM
Standby mode Yes
FG/AL Signal FG
Usage Notebook PC
Number of phase Single-phase
Power supply 5V
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
    • „Built in HALL element
    • „Auto Gain Control function (AGC)
    • „Soft switching drive (PWM type)
    • „Low PWM duty start up
    • „Quick start function
    • „Stand-by mode
    • „Incorporates lock protection and automatic restart circuit
    • „Compact package (GFT:TSSOF6 flat lead package) When TSSOF6 is mounted, package thickness is 0.3mm
    • „Rotating speed pulse signal (FG) output
    • „PWM speed control
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Thermal Resistance