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 (FAN312xT) or CMOS (FAN312xC) input thresholds. Internal circuitry provides an under-voltage lockout function by holding the output low until the supply voltage is within the operating range. FAN312x drivers incorporate the MillerDrive™ architecture for the final output stage. This bipolar / MOSFET combination provides the highest peak current during the Miller plateau stage of the MOSFET turn-on / turn-off process. The FAN3121 and FAN3122 drivers implement an enable function on pin 3 (EN), previously unused in the industry-standard pin-out. The pin is internally pulled up to V for active HIGH logic and can be left open for standard operation. The FAN3121/22 is available in a 3x3mm 8-lead thermally-enhanced MLP package or an 8-lead SOIC package.
●Features
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● Industry-Standard Pin-out with Enable Input
● 4.5 to 18V Operating Range
● 11.4A Peak Sink at VDD = 12V
● 9.7A Sink / 7.1A Source at VOUT = 6V
● Inverting Configuration (FAN3121) and Non-Inverting Configuration (FAN3122)
● Internal Resistors Turn Driver Off If No Inputs
● 23ns/19ns Typical Rise/Fall Times with 10nF Load
● 20ns Typical Propagation Delay Time
● Choice of TTL or CMOS Input Thresholds
● MillerDrive™ Technology
● Available in Thermally Enhanced 3x3mm 8-Lead MLP or 8-Lead SOIC Package (Pb-Free Finish)
● Rated from –40°C to +125°C
