ADUM4221-1ARIZ-RL

Gate Driver Overview

The ADUM4221-1ARIZ-RL is a current-isolated gate driver manufactured by Analog Devices Inc. It features an integrated PWM input and UVLO, packaged in a 16-pin SOIC. The device operates within a supply voltage range of 4.5V to 6.5V and supports a maximum power dissipation of 2.77 W. Key electrical parameters include a maximum propagation delay of 44 ns, with rise and fall times of 25 ns each. It functions as a half-bridge driver with two outputs and is rated for operation between -40°C and +125°C.

Gate Driver Feature Summary

• Integrates a PWM input stage to simplify control interface requirements
• Includes under-voltage lockout (UVLO) for reliable startup and shutdown protection
• Utilizes magnetic coupling technology for galvanic isolation

Gate Driver Applications

• Half-bridge power conversion circuits
• Motor drive systems requiring isolated gate control
• Industrial inverters and converters

Gate Driver Procurement Notes

Verify component authenticity through authorized channels due to limited availability status. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Cross-reference the specific suffix with official documentation to ensure functional equivalence. Check for recent production change notices that may affect pinout or specifications.

Gate Driver Selection Notes

Select this component when a dedicated PWM input interface is required alongside high-side and low-side driving capabilities. The integrated UVLO feature reduces external component count compared to standard drivers. Ensure the application voltage does not exceed the 6.5V maximum rating. Consider the thermal performance given the 2.77W power dissipation limit in the SOIC-16 package.

Gate Driver Part Context

This part belongs to the ADuM4221 family of current-isolated gate drivers from Analog Devices. It utilizes iCoupler technology to provide robust signal isolation. The device is designed to replace traditional transformer-based solutions, offering higher reliability and smaller form factors in power electronics applications.

Gate Driver Replacement Considerations

The ADUM4221ARIZ-RL is a related variant within the same product line. Verify if the specific '1' suffix configuration matches the design requirements before substitution.