ADUM3221BRZ

Overview

The ADUM3221BRZ is an isolated, dual-channel gate driver utilizing iCoupler technology. It provides a peak output current of 4 A with rise and fall times of 22 ns. The device operates on a supply voltage range of 3 V to 18 V and features a nominal undervoltage lockout (UVLO) of 7 V. It offers 2.5 kVrms insulation voltage and functions within a temperature range of -40°C to +125°C. Packaged in an 8-pin SOIC, it integrates protection against transients, overvoltage, thermal events, and undervoltage conditions.

Feature Summary

• Integrates high-speed CMOS logic with monolithic iCoupler magnetic coupling for galvanic isolation.
• Provides dual-channel drive capability with independent input and output configurations.
• Includes comprehensive internal protection mechanisms for transient, overvoltage, thermal, and undervoltage scenarios.

Applications

• Industrial motor control systems requiring isolated gate driving
• Inverter circuits in power conversion equipment
• Solid-state relay interfaces needing high isolation voltage

Procurement Notes

Verify the specific suffix 'RZ' corresponds to the tube packaging variant rather than reel options like RL7. Confirm RoHS compliance status through official Analog Devices documentation prior to integration. Ensure the 8-pin SOIC footprint matches the target PCB layout constraints. Validate that the 2.5 kVrms isolation rating meets the safety requirements of the end application environment.

Selection Notes

Select this component when a dual-channel solution with 4 A peak drive strength is required. The 2.5 kVrms isolation rating suits applications demanding moderate galvanic separation. Consider the 3 V to 18 V supply range compatibility with standard logic levels. Evaluate the 22 ns propagation characteristics against switching frequency requirements. Compare against other ADuM322x variants if different isolation voltages or channel counts are needed.

Part Context

This part belongs to the ADuM322x family of isolated gate drivers from Analog Devices. These devices leverage proprietary iCoupler technology to replace traditional optocouplers and transformers. The series is designed for robust performance in noisy industrial environments. The BRZ suffix indicates a specific package and compliance configuration within the broader product line.

Replacement Considerations

The ADUM3223ARZ is a documented related variant within the same family offering similar isolation and drive capabilities. Verify pinout compatibility and specific electrical parameter differences before substitution. Consult official Analog Devices documentation for detailed cross-reference data.