GENERAL DESCRIPTION
The TC4426/4427/4428 are improved versions of the earlier TC426/427/428 family of buffer/drivers (with which they are pin compatible). They will not latch up under any conditions within their power and voltage ratings. They are not subject to damage when up to 5V of noise spiking (of either polarity) occurs on the ground pin. They can accept, without damage or logic upset, up to 500 mA of reverse current (of either polarity) being forced back into their outputs. All terminals are fully protected against up to 4kV of electrostatic discharge.
As MOSFET drivers, the TC4426/4427/4428 can easily switch 1000pF gate capacitances in under 30nsec, and provide low enough impedances in both the ON and OFF states to ensure the MOSFETs intended state will not be affected, even by large transients.
Other compatible drivers are the TC4426A/27A/28A. These drivers have matched input to output leading edge and falling edge delays, tD1 and tD2, for processing short duration pulses in the 25 nsec range. They are pin compatible with the TC4426/27/28.

FEATURES
■ High Peak Output Current ............................... 1.5A
■ Wide Operating Range .......................... 4.5V to 18V
■ High Capacitive Load
   Drive Capability .......................... 1000pF in 25nsec
   ■ Short Delay Time .............................. < 40nsec Typ.
■ Consistent Delay Times With Changes in
Supply Voltage
■ Low Supply Current
   — With Logic “1” Input .................................... 4mA
   — With Logic “0” Input ................................. 400µA
■ Low Output Impedance ....................................... 7Ω
■ Latch-Up Protected ............. Will Withstand >0.5A
   Reverse Current ................................. Down to – 5V
   ■ Input Will Withstand Negative Inputs
■ ESD Protected .....................................................4kV
■ Pinout Same as TC426/TC427/TC428