ADUM4221-1CRIZ

Gate Driver Overview

The ADUM4221-1CRIZ is a current-isolated half-bridge gate driver manufactured by Analog Devices Inc. It operates within a supply voltage range of 2.5 V to 6.5 V and delivers a peak output current of 4 A. The device features a maximum propagation delay of 44 ns, with rise and fall times of 25 ns each. It supports inverting and non-inverting configurations and includes under-voltage lockout (UVLO) at 11.6 V. Packaged in a 16-lead SOIC, it functions reliably between -40°C and +125°C.

Gate Driver Feature Summary

• Integrates iCoupler magnetic isolation technology for galvanic barrier separation
• Provides dual-channel half-bridge drive capability with integrated dead-time control
• Includes under-voltage lockout protection to prevent improper switching states

Gate Driver Applications

• Industrial motor drives
• Inverter systems
• Power supply circuits

Gate Driver Procurement Notes

Verify component authenticity through authorized channels due to limited availability status. Confirm package integrity and moisture sensitivity handling procedures before assembly. Cross-reference datasheet revisions to ensure compatibility with existing design specifications and regulatory requirements.

Gate Driver Selection Notes

Select this component for designs requiring high-speed half-bridge isolation with integrated power delivery. Evaluate thermal performance against the specified 2.77 W power dissipation limit. Ensure input logic levels match the CMOS interface requirements for reliable signal transmission across the isolation barrier.

Gate Driver Part Context

This part belongs to the ADuM422x family of isolated gate drivers from Analog Devices. It utilizes proprietary iCoupler technology to combine magnetic isolation with on-chip transformer structures. The series provides robust solutions for applications demanding high common-mode transient immunity and compact form factors.

Gate Driver Replacement Considerations

The ADUM4221CRIZ is a variant within the same product line. Verify pinout compatibility and functional equivalence before substitution.