MIC4428YM-TR

The MIC4428 family are highly-reliable dual lowside 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 MIC4428 is available in three configurations: dual inverting, dual noninverting, and one inverting plus one noninverting output. 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, MIC4428 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.

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 7O 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 Dual inverting, dual noninverting, and inverting/ noninverting configurations ESD protection