ADUM5402WCRWZ-1

Overview

The ADUM5402WCRWZ-1 is a quad-channel digital isolator featuring an integrated isoPower isolated DC-to-DC converter. It provides up to 500 mW of regulated, isolated power at 5.0 V or 3.3 V. The device offers four independent isolation channels supporting data rates up to 25 Mbps with unidirectional signal transmission. It operates within a supply voltage range of 3 V to 5.5 V and maintains a propagation delay of 60 ns. The component ensures high common-mode transient immunity exceeding 25 kV/µs and supports operation in temperatures from -40°C to +105°C.

Feature Summary

• Integrates isoPower isolated DC-to-DC converter for compact design
• Provides four independent bidirectional or unidirectional signal channels
• Utilizes iCoupler chip-scale transformer technology for magnetic coupling
• Delivers regulated 5.0 V or 3.3 V output power

Applications

• Hybrid electric battery management systems
• Industrial fieldbus isolation
• Isolated sensor interfaces
• Power supply biasing and gate driving

Procurement Notes

Verify the specific suffix 'W' and '-1' against official Analog Devices documentation to confirm automotive qualification status and exact pinout configuration. Ensure PCB layout adheres to radiation standards due to the internal high-frequency switching transformer. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly.

Selection Notes

Select this component when a low-profile solution requires both signal isolation and isolated power generation in a single package. It is suitable for designs where space constraints prevent the use of separate isolated DC-DC converters. Verify that the required channel directionality matches the unidirectional nature of the ADUM5402 variant.

Part Context

This part belongs to the ADuM540x family of quad-channel digital isolators. These devices are designed to replace traditional optocouplers and discrete isolation circuits. The integration of the DC-DC converter simplifies system architecture by eliminating external magnetics for power transfer across the isolation barrier.

Replacement Considerations

Direct replacements include ADUM5401WCRWZ-1, ADUM5403WCRWZ-1, and ADUM5404WCRWZ-1. These variants share identical packaging and electrical characteristics but differ in channel directionality configurations.