ADUM5404CRWZ

Overview

The ADUM5404CRWZ is a quad-channel digital isolator from Analog Devices, featuring an integrated isoPower isolated DC-to-DC converter. It provides bidirectional signal isolation with data rates up to 25 Mbps and supports unidirectional operation. The device offers 2500 Vrms insulation voltage and high common-mode transient immunity of 25 kV/µs. It operates on a primary supply of 3 V to 5.5 V and delivers regulated 3.3 V or 5.0 V secondary power with up to 500 mW output capability. Packaged in a 16-SOIC surface-mount format, it functions within a temperature range of -40°C to +105°C.

Feature Summary

• Integrates an isolated DC-to-DC converter for self-powered secondary side operation
• Provides magnetic coupling-based digital isolation for four independent channels
• Delivers high common-mode transient immunity to suppress noise interference
• Supports flexible logic levels with regulated secondary output voltages

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety isolation
• Power electronics control circuits with high voltage rails
• Inverter and motor drive gate driver interfaces

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape/reel configuration. Confirm that the component meets required insulation standards for your application. Check current availability status as distribution may vary by region. Ensure PCB layout adheres to manufacturer guidelines for the integrated converter to maintain performance and compliance.

Selection Notes

Select this component when a single IC must provide both signal isolation and isolated power generation. It simplifies design by removing external transformer requirements. Consider the 500 mW power limit for secondary load calculations. Verify that the 25 Mbps speed meets system timing requirements. Evaluate thermal dissipation capabilities within the SOIC-16 package for the intended operating environment.

Part Context

This part belongs to the ADuM540x family of quad-channel isolators. These devices utilize capacitive and magnetic coupling technologies to achieve high reliability. The series is designed for applications demanding robust isolation between microcontrollers and peripheral circuits. The integration of the DC-DC converter distinguishes it from standard isolators that require external power supplies.

Replacement Considerations

Cross-reference with ADUM5401, ADUM5402, and ADUM5403 variants which share similar architectures but differ in channel directionality and pin configurations. Ensure functional compatibility regarding power output and signal direction before substitution.