ADUM4472ARIZ

Overview

The ADUM4472ARIZ is a four-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It integrates an isolated DC/DC converter to provide power across the isolation barrier. The device supports unidirectional data transmission at data rates up to 25 Mb/s with a maximum propagation delay of 60 ns. It operates on supply voltages between 3 V and 5.5 V and offers a high isolation voltage rating of 5000 Vrms. The component is housed in a 20-lead SOIC package and functions within a temperature range of -40°C to +105°C.

Feature Summary

• Integrates an isolated power supply to eliminate external transformer requirements
• Provides robust signal isolation via proprietary magnetic coupling technology
• Supports high-speed data transmission for PWM control and communication

Applications

• Pulse Width Modulation (PWM) controller isolation
• Transformer driver circuits
• Industrial automation systems requiring galvanic isolation

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape/reel configuration. Ensure compatibility with moisture sensitivity levels and reflow soldering profiles during assembly. Cross-reference pinouts with the latest datasheet revision to avoid integration errors in PCB layout design.

Selection Notes

Select this component when simultaneous signal isolation and integrated power delivery are required. It is suitable for designs needing high common-mode transient immunity without external magnetics. Consider thermal performance and current consumption of the internal regulator relative to system power budgets.

Part Context

This part belongs to the ADuM447x family of digital isolators. These devices combine high-speed digital channels with an integrated isolated power supply. They are designed to replace traditional optocouplers and transformers in applications demanding higher reliability and smaller form factors.

Replacement Considerations

Check for direct equivalents such as the ADUM4473ARIZ for similar functionality. Verify that substitute parts maintain compatible isolation ratings and package dimensions.