ADUM4221CRIZ

Gate Driver Overview

The ADUM4221CRIZ is a current-isolated half-bridge gate driver manufactured by Analog Devices Inc. It integrates two drivers with inverting and non-inverting configurations, housed in a 16-pin SOIC package. The device operates within a supply voltage range of 2.5 V to 6.5 V and supports an operating temperature range from -40°C to +125°C. Key electrical parameters include a peak output current of 4 A, rise and fall times of 25 ns each, and magnetic coupling isolation technology.

Gate Driver Feature Summary

• Integrates current isolation technology for robust signal transmission across isolation barriers
• Provides both inverting and non-inverting output channels for flexible half-bridge control
• Includes integrated UVLO (Under-Voltage Lockout) functionality for reliable operation
• Features built-in deadtime generation to prevent shoot-through in power switches

Gate Driver Applications

• Isolated gate driving for half-bridge power converter topologies
• Motor control systems requiring galvanic isolation between logic and power stages
• Industrial automation equipment utilizing high-voltage switching applications
• Inverter circuits in renewable energy systems such as solar microinverters

Gate Driver Procurement Notes

Verify the specific suffix CRIZ corresponds to the required tube packaging and industrial temperature grade. Confirm that the SOIC-16 footprint matches your PCB layout constraints. Ensure compatibility with the intended input logic levels and check for any recent lifecycle status changes or alternative recommendations from Analog Devices before finalizing procurement plans.

Gate Driver Selection Notes

Select this component when a half-bridge configuration with integrated deadtime and UVLO is required. It is suitable for applications needing 4 A drive capability and 25 ns switching speeds. Consider the 2.5 V to 6.5 V supply range for low-power logic interfaces. Evaluate thermal performance within the -40°C to +125°C range for harsh environments compared to lower-grade variants.

Gate Driver Part Context

This part belongs to the ADUM422x series of current-isolated gate drivers from Analog Devices. These devices utilize proprietary iCoupler technology to provide isolation without external transformers. The series offers various channel counts and drive strengths, positioning this model specifically for compact half-bridge solutions requiring precise timing control and high reliability in power electronics.

Gate Driver Replacement Considerations

The ADUM4223CRWZ is a documented substitute offering similar 4 A drive but with faster 12 ns transition times and a wider supply range up to 18 V. Verify pinout compatibility and thermal characteristics when substituting, as package variations may exist between the CRIZ and CRWZ suffixes.