ADUM3220ARZ

Isolators - Gate Drivers Overview

The ADUM3220ARZ is a dual-channel, digitally isolated gate driver manufactured by Analog Devices Inc. It provides galvanic isolation between control and power stages using capacitive coupling technology. The device features a 4 A peak output current capability for driving power switches. It operates within a supply voltage range of 3 V to 18 V on both sides. The unit offers a nominal undervoltage lockout (UVLO) threshold of 4.1 V. Propagation delays are characterized by rise and fall times of 22 ns. It supports an insulation voltage of 2.5 kVrms and functions across an industrial temperature range from -40°C to +125°C. The component is housed in an 8-SOIC package.

Isolators - Gate Drivers Feature Summary

• Provides high-speed digital isolation via on-chip capacitive sensors
• Delivers strong 4 A push-pull output drive capability
• Integrates independent UVLO protection for each channel
• Supports wide common-mode transient immunity

Isolators - Gate Drivers Applications

• Half-bridge and full-bridge power converter topologies
• Isolated motor control systems
• Solid-state transformer interfaces
• Industrial inverter drives

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ARZ' corresponds to the tube packaging variant rather than the reel-based 'RL7' version. Confirm that the 4.1 V nominal UVLO specification aligns with the system's low-side or high-side drive requirements. Ensure the SOIC-8 footprint matches the PCB layout constraints. Validate compliance with RoHS directives as indicated in official documentation before finalizing procurement orders.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel isolated driver with moderate speed and high current is required. The 22 ns propagation delay suits applications where switching losses must be balanced against electromagnetic interference. Consider the 2.5 kVrms isolation barrier for basic safety requirements. Compare against the ADUM3223 if half-bridge specific logic is needed instead of independent dual channels.

Isolators - Gate Drivers Part Context

This part belongs to the ADuM322x family of isolated gate drivers. It utilizes Analog Devices' iCoupler technology to integrate transformers, capacitors, and CMOS logic on a single silicon substrate. This approach eliminates the need for external magnetic components while maintaining robust signal integrity across the isolation barrier.

Isolators - Gate Drivers Replacement Considerations

Public confirmed substitute part numbers: ADUM3220BRZ.