ADUM4120-1ARIZ

Isolators - Gate Drivers Overview

The ADUM4120-1ARIZ is a single-channel isolated gate driver utilizing iCoupler magnetic coupling technology. It delivers a peak output current of 2.3 A with propagation delays up to 79 ns and common-mode transient immunity of 150 kV/µs. The device operates with input voltages from 2.5 V to 6.5 V and output supply voltages from 4.5 V to 35 V. It features Class B UVLO at 7.3 V, glitch filtering, and default low-level output. Packaged in a 6-pin wide SOIC, it provides 5 kVrms isolation with extended creepage distance.

Isolators - Gate Drivers Feature Summary

• Employs iCoupler technology for high-precision digital isolation without external magnetics
• Includes integrated glitch filter to reduce noise-induced false triggering on the input pin
• Features multiple UVLO options with Class B threshold optimized for specific gate drive requirements
• Provides reinforced isolation with extended creepage distance in a compact 6-pin package

Isolators - Gate Drivers Applications

• Industrial motor control systems
• Inverter and converter circuits
• PLC isolated I/O modules
• Data communication between isolated systems

Isolators - Gate Drivers Procurement Notes

Verify the suffix ARIZ corresponds to the specific tape-and-reel packaging configuration required for automated assembly processes. Confirm that the Class B UVLO threshold aligns with the target MOSFET or IGBT gate drive voltage levels. Ensure the 6-SOIC footprint matches the PCB layout constraints. Check for any updated regulatory certifications such as VDE or UL status before finalizing procurement specifications.

Isolators - Gate Drivers Selection Notes

Select this component when precise timing and high noise immunity are critical for single-channel gate driving applications. The integrated glitch filter simplifies design by reducing susceptibility to input transients. The wide operating temperature range supports harsh industrial environments. Consider the Class B UVLO threshold if higher turn-on voltage is needed compared to standard variants.

Isolators - Gate Drivers Part Context

This part belongs to the ADuM4120 series of isolated gate drivers from Analog Devices. It leverages iCoupler technology to replace traditional transformer-based solutions. The series includes variants with different UVLO thresholds and packaging options. It is designed to drive power switches like MOSFETs and IGBTs in high-noise environments while maintaining signal integrity across the isolation barrier.

Isolators - Gate Drivers Replacement Considerations

The ADUM4120 (without the -1 suffix) serves as a direct functional substitute but lacks the specific Class B UVLO threshold. Verify that the non-suffixed variant meets the minimum gate drive voltage requirements of the target power switch.