资 源 简 介
The TC1426/TC1427/TC1428 are a family of 1.2A dualhigh-speed drivers. CMOS fabricaTIon is used for lowpowerconsumpTIon and high efficiency.These devices are fabricated using an epitaxial layer toeffecTIvely short out the intrinsic parasiTIc transistorresponsible for CMOS latch-up. They incorporate anumber of other design and process refinements toincrease their long-term reliability.The TC1426 is compatible with the bipolar DS0026, butonly draws 1/5 of the quiescent current. The TC1426/TC1427/TC1428 are also compatible with the TC426/TC427/TC428, but with 1.2A peak output current ratherthan the 1.5A of the TC426/TC427/TC428 devices.Other compatible drivers are the TC4426/TC4427/TC4428 and the TC4426A/TC4427A/TC4428A. TheTC4426/TC4427/TC4428 have the added feature thatthe inputs can withstand negative voltage up to 5V withdiode protection circuits. The TC4426A/TC4427A/TC4428A have matched input to output leading edgeand falling edge delays, tD1 and tD2, for processingshort duration pulses in the 25 nanoseconds range. Allof the above drivers are pin compatible.The high-input impedance TC1426/TC1427/TC1428drivers are CMOS/TTL input-compatible, do not requirethe speed-up needed by the bipolar devices, and canbe directly driven by most PWM ICs.This family of devices is available in inverting and noninvertingversions. Specifications have been optimizedto achieve low-cost and high-performance devices,well-suited for the high-volume manufacturer.
