The MIC4426/4427/4428 family are highly-reliable dual low-side MOSFET drivers fabricated on a BiCMOS/DMOS process for low power consumption and high efficiency. These drivers translate TTL or CMOS input logic levels to output voltage levels that swing within 25mV of the positive supply or ground. Comparable bipolar devices are capable of swinging only to within 1V of the supply. The MIC4426/7/8 is available in three configurations: dual inverting, dual noninverting, and one inverting plus one noninverting output.The MIC4426/4427/4428 are pin-compatible replacements for the MIC426/427/428 and MIC1426/1427/1428 with improved electrical performance and rugged design. They can withstand up to 500mA of reverse current (either polarity) without latching and up to 5V noise spikes (either polarity) on ground pins.Primarily intended for driving power MOSFETs, MIC4426/7/8 drivers are suitable for driving other loads (capacitive, resistive, or inductive) which require low-impedance, high peak current, and fast switching time. Other applications include driving heavily loaded clock lines, coaxial cables, or piezoelectric transducers. The only load limitation is that total driver power dissipation must not exceed the limits of the package.Note See MIC4126/4127/4128 for high power and narrow pulse applications.

  Bipolar/CMOS/DMOS construction

  Latch-up protection to >500mA reverse current

  1.5A peak output current

  4.5V to 18V operating range

  Low quiescent supply current

  4mA at logic 1 input

  400μA at logic 0 input

  Switches 1000pF in 25ns

  Matched rise and rall times

  7Ω output impedance

  <40ns typical delay

  Logic-input threshold independent of supply voltage

  Logic-input protection to -5V

  6pF typical equivalent input capacitance

  25mV max. output offset from supply or ground

  Replaces MIC426/427/428 and MIC1426/1427/1428

  Dual inverting, dual noninverting, and inverting/noninverting configurations

  ESD protection