onsemi FAN3122CMPX

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. 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 VDD for active HIGH logic and can be left open for standard operation. The commercial FAN3121/22 is available in a 3x3 mm 8−lead thermally−enhanced MLP package or an 8−lead SOIC package with the option for an exposed pad.

• 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)
• 18 ns to 23 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
• These are Pb−Free Devices

• Synchronous Rectifier Circuits
• High−Efficiency MOSFET Switching
• Switch−Mode Power Supplies
• DC−to−DC Converters
• Motor Control