HX4427-S

The HX4426/4427/4428 series of dual low-side MOSFET drivers are manufactured on a BiCMOS/DMOS process, providing efficient power usage and high reliability. These drivers translate input logic levels from TTL or CMOS to output voltage levels that swing within 25 mV of the positive supply or ground. This is in contrast to bipolar devices, which can only swing to within 1V of the supply. The HX4426/4427/4428 drivers are available in three configurations: dual inverting, dual non-inverting, and one inverting plus one non-inverting output. They are designed to replace the HX426/427/428 and HX1426/1427/1428, offering improved electrical performance and ruggedness.

The HX4426/4427/4428 drivers are highly durable, capable of withstanding up to 500 mA of reverse current (either polarity) without latching and up to 5V noise spikes (either polarity) on the ground pins. These drivers are primarily intended for driving power MOSFETs, but are also suitable for driving other loads that require low-impedance, high peak current, and fast switching time. Other potential applications include driving heavily loaded clock lines, coaxial cables, or piezoelectric transducers. It is important to note that the total driver power dissipation must not exceed the package's limits. For high power and narrow pulse applications, see HX4126/4127/4128.