Automotive High-Speed, Low-Side Drivers Increase Efficiency, Simplify 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 Corp. 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 include: Qualified to AEC-Q100 requirements; Compound MillerDriveâ„¢ architecture for strong gate drive; Short and well-controlled time delays (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; and -40 to +125 degrees C ambient operating temperature range.
Devices being introduced include: the FAN3216_F085 a 2A dual Inverting device with a TTL threshold; the FAN3227_F085 a dual 2A non-Inverting + dual-enable device with CMOS and TTL thresholds; and the FAN3122_F085 a single 9A, Non-Inverting + Enable device with CMOS and TTL thresholds. All three devices are in SOIC-8 packages. In lots of 1,000 pieces, unit prices are; in 1,000 quantity pieces: FAN3216_F085, $0.98; FAN3227_F085, $1.10; and FAN3122_F085, $1.33. Samples are currently available.
