ADUM3221WBRZ-RL7

Isolators - Gate Drivers Overview

The ADUM3221WBRZ-RL7 is a single-channel, galvanically isolated gate driver from the Analog Devices ADuM3221 series. It utilizes iCoupler technology to provide high-speed signal isolation with a 4A peak output current capability. The device operates within a supply voltage range of 3.3V to 5V and features a nominal undervoltage lockout (UVLO) threshold of 7V. Designed for robust performance, it supports an operating temperature range from -40°C to +125°C and holds AEC-Q100 qualification. The component is housed in an SOIC-8 surface-mount package and is supplied in reel packaging.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation between input control signals and power stage outputs using digital isolation technology.
• Delivers high peak drive current suitable for switching power transistors such as MOSFETs and IGBTs.
• Includes undervoltage lockout functionality to prevent improper operation during low supply conditions.

Isolators - Gate Drivers Applications

• Isolated gate driving for power conversion circuits
• Motor control systems requiring high-side or low-side isolation
• Industrial inverters and converters

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'WBRZ-RL7' against official Analog Devices documentation to confirm package type, tape-and-reel configuration, and lead-free status. Ensure compatibility with your PCB footprint and reflow profile requirements. Confirm availability status directly with authorized distributors as supply constraints may apply.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel isolated gate driver with 4A peak current is required. Consider the 7V nominal UVLO threshold to ensure proper turn-on behavior for your specific transistor gate voltage. Verify that the SOIC-8 package dimensions fit your board layout constraints and that the thermal performance meets your application's dissipation needs.

Isolators - Gate Drivers Part Context

This part belongs to the ADuM3221 family of isolated gate drivers. It shares the core iCoupler isolation architecture with other variants in the series but differs in channel count and UVLO thresholds. The 'W' indicates a wide operating temperature range, while 'BRZ' denotes a lead-free RoHS-compliant package. The '-RL7' suffix specifies the reel packaging format for automated assembly.

Isolators - Gate Drivers Replacement Considerations

Check for direct substitutes within the ADuM3221 family, such as ADUM3221ARZ-RL7, noting differences in UVLO thresholds. Cross-reference with other single-channel isolated gate drivers if pin-out compatibility allows. Always verify electrical parameters and isolation ratings before substitution.