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Fairchild Semiconductor’s Automotive Qualified High-Speed, Low-Side Driver Family Increases Efficiency, Simplifies Design

Automotive applications using power MOSFETs require gate drivers with high peak drive current and low output impedance. The FAN31xx_F085 and FAN32xx_F085 series of high-speed, low-side automotive qualified gate drivers from Fairchild Semiconductor offer flexibility for power supply and other high-efficiency MOSFET switching applications, providing a wide selection of feature and performance combinations to create compact, highly efficient and reliable designs.

These AEC-Q100 qualified drivers are available in an SO8 package with a choice of TTL or CMOS input thresholds. This ensures the best possible design compatibility. The drivers have two inputs for each channel (either Dual-input (+ and – logic), Inverting and Enable, or Non-inverting and Enable) offering design flexibility.

Key Features:
  • Qualified to AEC-Q100 requirements (shown by flow code "_F085")
  • Compound MillerDrive™ architecture for strong gate drive
  • Short and well-controlled time delays (<20ns propagation delays for >1MHz switching) allows paralleling drivers, and optimizing drive timing to maximize efficiency
  • Fail-safe inputs: output held low if no input signal is present
  • 20V Abs max >4kV ESD and >500mA reverse current
  • -40 to +125 degrees C ambient operating temperature range


    Part Number     Input Threshold     Package     Datasheet

Dual 2A

Dual Inverting




Dual 2A     Dual Non-Inverting + Dual Enable    

    CMOS, TTL     SOIC-8    

Single 9A     Single Non-Inverting + Enable    

    CMOS, TTL     SOIC-8    


Fairchild Semiconductor works with the world’s leading automakers and system suppliers, creating semiconductor solutions that support a range of applications, including the optimization of power management in modern vehicle architectures, reducing fuel consumption and environmental pollutants.

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