ADUM4120ARIZ-RL

Isolators - Gate Drivers Overview

The ADUM4120ARIZ-RL is a single-channel, inverting, galvanically isolated gate driver from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides a peak output current of 2.3 A and operates with an output supply voltage range of 4.5 V to 35 V. The device features a propagation delay of up to 79 ns and rise/fall times of 18 ns. It offers high common-mode transient immunity of 150 kV/µs and includes glitch filtering. The component is housed in a 6-SOIC package and supports operating temperatures from -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Integrates iCoupler magnetic coupling technology for precise signal isolation without external magnetics.
• Provides high-speed switching capabilities with low propagation delay and fast rise/fall times.
• Features integrated glitch filtering to prevent false triggering during high dv/dt events.
• Delivers robust common-mode transient immunity suitable for noisy power electronics environments.

Isolators - Gate Drivers Applications

• Driving Silicon Carbide (SiC) MOSFETs in high-frequency power converters
• Insulated gate bipolar transistor (IGBT) gate drive circuits
• High-voltage isolated power supply control loops
• Motor drive systems requiring reliable galvanic isolation

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ARIZ-RL' against the manufacturer's latest datasheet to confirm pinout compatibility and revision status. Ensure that the SOIC-6 package dimensions match your PCB footprint requirements. Confirm that the 5000 Vrms isolation rating meets the safety standards required for your target application environment.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel, inverting isolated gate drive is required with moderate speed and high reliability. Consider the 2.3 A peak current capability for driving small-to-medium sized power devices. Evaluate the 35 V maximum output supply limit to ensure it aligns with the gate drive voltage requirements of the target switch.

Isolators - Gate Drivers Part Context

This part belongs to the ADuM4120 series of precision isolated gate drivers. It is distinct from non-inverting variants like the ADUM4121 and dual-output models such as the ADUM4122. The 'RL' suffix indicates reel packaging, while 'ARIZ' denotes the industrial temperature grade and SOIC-6 package variant.

Isolators - Gate Drivers Replacement Considerations

Direct functional substitutes within the same family include the ADUM4121ARIZ-RL for non-inverting applications. For dual-channel needs, consider the ADUM4122ARIZ-RL. Verify that any replacement maintains the 6-SOIC package and similar electrical characteristics such as peak current and isolation voltage.

Isolators - Gate Drivers FAQ

Is the ADUM4120ARIZ-RL inverting or non-inverting?

The ADUM4120ARIZ-RL is an inverting gate driver, meaning the output signal is the logical inverse of the input signal.

What is the maximum common-mode transient immunity of this device?

The device specifies a minimum common-mode transient immunity of 150 kV/µs.

Does this driver require external transformers for isolation?

No, it utilizes iCoupler technology which integrates micro-transformers on-chip, eliminating the need for external isolation components.