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FAN3121 / FAN3122 Single 9-A High-Speed, Low-Side Gate Driver FAN3121 / FAN3122 Single 9-A High-Speed, Low-Side Gate Driver Features Description The FAN3121 and FAN3122 MOSFET drivers are Industry-Standard Pin-out with Enable Input designed to drive N-channel enhancement MOSFETs in 4.5-V to 18-V Operating Range low-side switching applications by providing high peak current pulses. The drivers are available with either TTL 11.4 A Peak Sink at V = 12 V DD input thresholds (FAN312xT) or V -proportional CMOS DD 9.7-A Sink / 7.1-A Source at V = 6 V OUT input thresholds (FAN312xC). Internal circuitry provides Inverting Configuration (FAN3121) and an under-voltage lockout function by holding the output Non-Inverting Configuration (FAN3122) low until the supply voltage is within the operating range. Internal Resistors Turn Driver Off If No Inputs FAN312x drivers incorporate the MillerDrive architecture for the final output stage. This bipolar / 23-ns / 19-ns Typical Rise/Fall Times (10 nF Load) MOSFET combination provides the highest peak current 18 ns to 23 ns Typical Propagation Delay Time during the Miller plateau stage of the MOSFET turn-on / Choice of TTL or CMOS Input Thresholds turn-off process. MillerDrive Technology The FAN3121 and FAN3122 drivers implement an enable function on pin 3 (EN), previously unused in the Available in Thermally Enhanced 3x3 mm 8-Lead industry-standard pin-out. The pin is internally pulled up MLP or 8-Lead SOIC Package (Pb-Free Finish) to V for active HIGH logic and can be left open for DD Rated from 40C to +125C standard operation. Automotive Qualified to AEC-Q100 (F085 Versions) The commercial FAN3121/22 is available in a 3x3 mm 8-lead thermally-enhanced MLP package or an 8-lead Applications SOIC package. The AEC-Q100 automotive-qualified versions are available in the 8-lead SOIC package. Synchronous Rectifier Circuits High-Efficiency MOSFET Switching Switch-Mode Power Supplies DC-to-DC Converters Motor Control Automotive-Qualified Systems (F085 Versions) VDD VDD VDD VDD 1 8 1 8 IN IN 2 7 OUT 2 7 OUT EN 6 3 6 3 OUT EN OUT GND 5 GND GND 4 5 GND 4 Figure 1. FAN3121 Pin Configuration Figure 2. FAN3122 Pin Configuration 2008 Semiconductor Components Industries, LLC. Publication Order Number: October-2017, Rev. 2 FAN3122T-F085 / D