The MIC4422 is a non-inverting 9A peak low-side MOSFET driver fabricated with BiCMOS/DMOS technology, designed to drive large MOSFETs and IGBTs efficiently with minimal external components. It operates from a 4.5V to 18V supply and accepts logic inputs from 2.4V to Vₔ. The device is latch-up proof, withstands input voltage swings down to -5V, and features matched rise and fall times up to 120ns, with a typical delay time of 30ns. Output voltage swings within 25mV of supply or ground, and it delivers 9A peak current. It is available in 8-pin SOIC, 8-pin DIP, and 5-pin TO-220 packages, with operating ambient temperature ranges of -40°C to +85°C or 0°C to +70°C depending on version.
MIC4421A and MIC4422A MOSFET drivers are rugged, efficient, and easy to use. The MIC4421A is an inverting driver, while the MIC4422A is a non-inverting driver. Both versions are capable of 9A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4421A/4422A accepts any logic input from 2.4V to VS without external speed-up capacitors or resistor networks. Proprietary circuits allow the input to swing negative by as much as 5V without damaging the part. Additional circuits protect against damage from electrostatic discharge. MIC4421A/4422A drivers can replace three or more discrete components, reducing PCB area requirements, simplifying product design, and reducing assembly cost. Modern Bipolar/CMOS/DMOS construction guarantees freedom from latch-up. The rail-to-rail swing capability of CMOS/DMOS helps ensure adequate gate voltage to the MOSFET during power up/down sequencing. Since these devices are fabricated on a self-aligned process, they have very low crossover current, run cool, use little power, and are easy to drive.
Additional Features
| Microchip Technology, Inc. | |
|---|---|
| Product Category | Metal-Oxide Semiconductor FET (MOSFET) |
| Product Number | MIC4422 |
| Product Name | 9A Non-Inverting Peak Low Side MOSFET Driver |
