Description
The FAN3121 and FAN3122 MOSFET drivers are designed to drive N-channel enhancement MOSFETs in low-side switching applications by providing high peak current pulses. The drivers are available with either TTL input thresholds (FAN312xT) or VDD-proportional CMOS input thresholds (FAN312xC). Internal circuitry provides an under-voltage lockout function by holding the output low until the supply voltage is within the operating range.

Features
■ Industry-Standard Pin-out with Enable Input
■ 4.5-V to 18-V Operating Range
■ 11.4 A Peak Sink at VDD = 12 V
■ 9.7-A Sink / 7.1-A Source at VOUT = 6 V
■ Inverting Configuration (FAN3121) and
Non-Inverting Configuration (FAN3122)
■ Internal Resistors Turn Driver Off If No Inputs
■ 23-ns / 19-ns Typical Rise/Fall Times (10 nF Load)
■ 20-ns Typical Propagation Delay Time
■ Choice of TTL or CMOS Input Thresholds
■ MillerDrive™ Technology
■ Available in Thermally Enhanced 3x3 mm 8-Lead
   MLP or 8-Lead SOIC Package (Pb-Free Finish)
■ Rated from –40°C to +125°C
■ Automotive Qualified to AEC-Q100 (F085 Versions)

Applications
■ Synchronous Rectifier Circuits
■ High-Efficiency MOSFET Switching
■ Switch-Mode Power Supplies
■ DC-to-DC Converters
■ Motor Control
■ Automotive-Qualified Systems (F085 Versions)