IR4428S

Gate Driver Overview

The IR4428S is a dual low-side gate driver IC from Infineon Technologies, designed for driving power MOSFETs and IGBTs. It features two independent channels with inverting and non-inverting inputs, supporting supply voltages from 6 V to 20 V. The device operates within an industrial temperature range of -40°C to +125°C and utilizes an 8-SOIC surface-mount package.

Gate Driver Feature Summary

• Dual-channel architecture providing independent control for low-side switching applications
• Flexible input configuration accommodating both inverting and non-inverting logic signals
• Robust output stage capable of sourcing and sinking current to drive power devices efficiently

Gate Driver Applications

• Power supply circuits requiring isolated or non-isolated low-side switching
• Motor control systems utilizing MOSFET or IGBT bridges
• Industrial automation equipment needing reliable gate drive solutions

Gate Driver Procurement Notes

Verify the specific suffix (e.g., STRPBF) for tape-and-reel packaging requirements against project needs. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary. Ensure ESD handling protocols are followed during storage and assembly to maintain component integrity.

Gate Driver Selection Notes

Choose this component when dual low-side driving is required with mixed input polarity options. It suits designs needing wide supply voltage tolerance and industrial-grade thermal performance. Consider the SOIC-8 footprint for space-constrained PCB layouts where surface-mount technology is preferred over through-hole alternatives.

Gate Driver Part Context

Part of the IR(S)442X series, the IR4428S complements other drivers like the IR4427S by offering distinct input configurations. While similar in voltage ratings, it differs in channel input types compared to its siblings, providing design flexibility for complex gate drive topologies in power electronics.

Gate Driver Replacement Considerations

The IR4426SPBF is a documented alternative within the same family, though it specifies different electrical characteristics such as output current and propagation delay. Verify pin compatibility and parameter alignment before substitution to ensure circuit functionality remains intact.