ADUM4120ARIZ

Isolators - Gate Drivers Overview

The ADUM4120ARIZ is a single-channel, inverting, galvanically isolated gate driver from the Analog Devices iCoupler series. It utilizes magnetic coupling technology to provide signal isolation with a rating of 5000Vrms. The device features a peak output current of 2.3 A and supports an output supply voltage range of 4.5 V to 35 V. Key electrical parameters include rise and fall times of 18 ns, maximum propagation delays of 69 ns (tpLH) and 79 ns (tpHL), and a minimum common-mode transient immunity of 150 kV/µs. It operates within a temperature range of -40°C to +125°C and is housed in a 6-SOIC package.

Isolators - Gate Drivers Feature Summary

• Integrates iCoupler magnetic coupling technology for high-speed digital isolation without external transformer components.
• Provides robust common-mode transient immunity to protect against rapid voltage changes in switching environments.
• Includes under-voltage lockout (UVLO) mechanisms on both input and output sides to ensure safe operation during power transitions.

Isolators - Gate Drivers Applications

• Driving IGBTs and MOSFETs in industrial motor control systems
• Gate drive stages in DC-DC converters and power supplies
• Inverter circuits in renewable energy inverters

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ARIZ' corresponds to the required temperature grade and packaging configuration. Confirm that the 6-SOIC footprint matches the target PCB layout. Ensure compliance with RoHS directives if applicable to the manufacturing region. Cross-reference the datasheet revision date to confirm parameter validity against current design requirements.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel isolated driver with high peak current capability is required. The inverting logic configuration must align with the control signal polarity. Consider the 5000Vrms isolation barrier for safety compliance. Evaluate the 18 ns switching speed against the target switching frequency to minimize losses. Verify that the 35 V maximum output voltage accommodates the highest gate drive requirement.

Isolators - Gate Drivers Part Context

This part belongs to the ADuM4120 series of isolated gate drivers. It is distinct from non-isolated drivers by its integrated magnetic isolation barrier. The 'ARIZ' designation typically indicates a specific temperature range and tape-and-reel or cut-tape packaging option suitable for surface-mount assembly processes.

Isolators - Gate Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineering evaluation of alternative isolated gate drivers from other manufacturers requires independent verification of pin compatibility and electrical specifications.

Isolators - Gate Drivers FAQ

What is the isolation voltage rating of the ADUM4120ARIZ?

The device provides an isolation rating of 5000Vrms between the input and output channels.

Does the ADUM4120ARIZ invert the input signal?

Yes, the ADUM4120ARIZ is configured as an inverting gate driver.

What is the minimum common-mode transient immunity specified for this device?

The minimum common-mode transient immunity is 150 kV/µs.