onsemi FAN3121
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). This bipolar / MOSFET combination provides the highest peak current during the Miller plateau stage of the MOSFET turn−on / turn−off process.DESCRIPTION
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. 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.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)
● 18 ns to 23 ns Typical Pro...