ADUM5403ARWZ

The ADuM5401/ADuM5402/ADuM5403/ADuM5404 are quadchannel digital isolators with isoPower, an integrated, isolated dc-to-dc converter. The dc-to-dc converter provides up to 500 mW of regulated, isolated power at either 5.0 V or 3.3 V from a 5.0 V input supply, or at 3.3 V from a 3.3 V supply. These devices eliminate the need for a separate, isolated dc-to-dc converter in low power, isolated designs. The iCoupler chip scale transformer technology is used to isolate the logic signals and for the power and feedback paths in the dc-to-dc converter. The result is a small form factor, total isolation solution. The ADuM5401/ADuM5402/ADuM5403/ADuM5404 isolators provide four independent isolation channels in a variety of channel configurations and data rates.

Applications

• RS-232/RS-422/RS-485 transceivers
• Industrial field bus isolation
• Power supply start-up bias and gate drives
• Isolated sensor interfaces
• Industrial PLCs

Key features

• isoPower integrated, isolated dc-to-dc converter
• Regulated 3.3 V or 5.0 V output
• Up to 500 mW output power
• Quad dc-to-25 Mbps (NRZ) signal isolation channels
• 16-lead SOIC package with 7.6 mm creepage
• High temperature operation: 105°C maximum
• High common-mode transient immunity: >25 kV/μs
• Safety and regulatory approvals
• UL recognition 2500 V rms for 1 minute per UL 1577
• CSA Component Acceptance Notice 5A
• VDE certificate of conformity IEC 60747-5-2 (VDE 0884, Part 2) V₁₀RM = 560 V peak
• CQC certification per GB4943.1-2011