ADUM4221ARIZ

Gate Driver Overview

The ADUM4221ARIZ is a current-isolated half-bridge gate driver manufactured by Analog Devices. It operates within a supply voltage range of 2.5 V to 6.5 V and delivers a peak output current of 4 A per channel. The device features rise and fall times of 25 ns, ensuring rapid switching capabilities. It supports both inverting and non-inverting logic configurations. The component is housed in an SOIC-16 package and functions reliably across an operating temperature range from -40 °C to +125 °C.

Gate Driver Feature Summary

• Integrates integrated dead-time control and under-voltage lockout (UVLO) for robust half-bridge operation.
• Utilizes capacitive isolation technology to provide galvanic isolation between input and output circuits.
• Supports flexible logic interface with selectable inverting or non-inverting signal paths.

Gate Driver Applications

• Industrial motor drive systems
• Inverter circuits
• Switched-mode power supplies

Gate Driver Procurement Notes

Verify the specific suffix ARIZ corresponds to the required tape-and-reel packaging configuration. Confirm that the SOIC-16 footprint matches the target PCB layout. Ensure the 2.5 V to 6.5 V supply range aligns with the system's available power rails. Validate thermal management requirements for the +125 °C maximum junction temperature during high-frequency switching operations.

Gate Driver Selection Notes

Select this component when a single-channel half-bridge driver with integrated protection features is required. The 4 A output capability suits medium-power IGBT and MOSFET applications. Consider the SOIC-16 package constraints against available board space. Evaluate the need for internal dead-time generation versus external timing components to simplify design complexity.

Gate Driver Part Context

This part belongs to the ADuM422x family of isolated gate drivers. These devices are designed to replace traditional transformer-based isolation solutions. They offer higher reliability and smaller form factors for power electronics applications requiring precise timing and robust noise immunity.

Gate Driver FAQ

Does the ADUM4221ARIZ include internal dead-time control?

Yes, the device integrates programmable dead-time control to prevent shoot-through currents in half-bridge configurations.

What is the maximum supply voltage for this driver?

The maximum supply voltage is 6.5 V, while the minimum operating voltage is 2.5 V.