ADUM4221-1BRIZ

Gate Driver Overview

The ADUM4221-1BRIZ is a 4 A isolated half-bridge gate driver utilizing iCoupler technology. It operates with logic input voltages from 2.5 V to 6.5 V, ensuring compatibility with low-voltage systems. The device features independent high-side and low-side outputs within a wide-body 16-pin SOIC_IC package. Key electrical parameters include a maximum propagation delay of 44 ns, with typical rise and fall times of 25 ns each. It supports a PWM input and includes under-voltage lockout (UVLO) at 7.5 V. The component functions reliably across an operating temperature range of -40°C to +125°C.

Gate Driver Feature Summary

• Employs iCoupler technology for galvanic isolation between inputs and outputs
• Provides independent high-side and low-side drive channels for half-bridge configurations
• Integrates adjustable dead-time control to prevent shoot-through conditions
• Includes under-voltage lockout protection for reliable operation

Gate Driver Applications

• Motor control systems requiring isolated gate driving
• Industrial power conversion circuits
• Inverter topologies in renewable energy applications

Gate Driver Procurement Notes

Verify availability status as supply may be limited or subject to factory special orders. Confirm the specific suffix indicates the inverting/non-inverting configuration required for your design. Ensure the wide-body SOIC-16 package dimensions match your PCB footprint constraints. Check for RoHS compliance documentation if environmental regulations apply to your manufacturing process.

Gate Driver Selection Notes

Select this component when 4 A peak drive current is necessary for power switches. The iCoupler interface eliminates the need for external transformer drivers. Consider the 2.5 V to 6.5 V input range for compatibility with various logic families. The wide-body package facilitates higher creepage distances for enhanced safety isolation requirements in high-voltage environments.

Gate Driver Part Context

This part belongs to the ADuM4221 family of isolated half-bridge gate drivers. Variants such as the ADuM4221 and ADuM4221-2 offer similar core functionalities but may differ in pinout configurations or specific isolation ratings. The family leverages Analog Devices' proprietary iCoupler technology to provide robust signal and power isolation in a compact surface-mount package.

Gate Driver Replacement Considerations

Direct substitutes within the same family include the ADuM4221 and ADuM4221-2. Verify that any replacement maintains the 4 A output capability and compatible package style. Ensure the isolation voltage rating meets the system's safety requirements. Cross-reference pinouts carefully as functional differences may exist between variants.