MIC4422ACT

Overview

The MIC4422ACT is a single-channel, low-side MOSFET gate driver manufactured by Microchip Technology. It utilizes a Bipolar/CMOS/DMOS process to deliver high peak output currents of 9A for both sourcing and sinking. The device operates within a supply voltage range of 4.5V to 18V and supports logic levels compatible with both CMOS and TTL standards. Key electrical parameters include typical rise and fall times of 20ns and 24ns, respectively. It is housed in an 8-SOIC surface-mount package and is rated for an operating junction temperature range of -40°C to 150°C.

Feature Summary

• Delivers high peak output current capability of 9A for rapid switching of power MOSFETs.
• Features fast propagation delay and short rise/fall times to minimize switching losses.
• Provides robust protection against shoot-through currents in bridge configurations.

Applications

• High-frequency DC-DC converters
• Motor control systems
• Power supply circuits

Procurement Notes

Verify the specific suffix 'ACT' against official Microchip documentation to confirm the exact temperature grade and packaging configuration. Ensure compatibility with the target PCB footprint for the 8-SOIC package. Cross-reference the datasheet revision history for any recent manufacturing or material changes that may affect integration.

Selection Notes

Select this component when a single low-side driver with high peak current is required. It is suitable for applications needing fast switching speeds and wide input voltage compatibility. Consider thermal management requirements due to the high peak current capability and ensure the PCB layout supports the necessary ground plane connections for optimal performance.

Part Context

This part belongs to the MIC4422 family of high-speed MOSFET drivers. It is functionally similar to the MIC4421 but offers non-inverting logic instead of inverting. The device is designed to replace older discrete driver solutions, offering improved performance in a compact integrated circuit form factor for modern power electronics designs.

Replacement Considerations

Direct substitutes include MIC4422AYM and MIC4422ZM from Microchip. Verify pinout and electrical specifications before substitution.