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The TC4421A/TC4422A are improved versions of theearlier TC4421/TC4422 family of single-outputMOSFET drivers. These devices are high-currentbuffer/drivers capable of driving large MOSFETs andInsulated Gate Bipolar Transistors (IGBTs). TheTC4421A/TC4422A have matched output rise and fallTImes, as well as matched leading and falling-edgepropagaTIon delay TImes. The TC4421A/TC4422Adevices also have very low cross-conducTIon current,reducing the overall power dissipation of the device.These devices are essentially immune to any form ofupset, except direct overvoltage or over-dissipation.They cannot be latched under any conditions withintheir power and voltage ratings. These parts are notsubject to damage or improper operation when up to5V of ground bounce is present on their groundterminals. They can accept, without damage or logicupset, more than 1A inductive current of either polaritybeing forced back into their outputs. In addition, allterminals are fully protected against up to 4 kV ofelectrostatic discharge.The TC4421A/TC4422A inputs may be driven directlyfrom either TTL or CMOS (3V to 18V). In addition,300 mV of hysteresis is built into the input, providingnoise immunity and allowing the device to be drivenfrom slowly rising or falling waveforms.With both surface-mount and pin-through-holepackages, in addition to a wide operating temperaturerange, the TC4421A/TC4422A family of 9A MOSFETdrivers fit into most any application where high gate/linecapacitance drive is required.
