GENERAL DESCRIPTION

The ADuM54001 device is a quad-channel digital isolator with isoPower?, an integrated, isolated dc-to-dc converter. Based on

the Analog Devices, Inc., iCoupler? technology, the dc-to-dc

converter provides up to 500 mW of regulated, isolated power

with 5.0 V input and 5.0 V output voltages. This architecture eliminates 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 the magnetic

components of the dc-to-dc converter. The result is a small form factor, total isolation solution.

The ADuM5400 isolator provides four independent isolation

channels in two speed grades (see the Ordering Guide for more information). isoPower uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions

standards. Refer to the AN-0971 Application Note for details

on board layout recommendations.

FEATURES isoPower integrated, isolated dc-to-dc converter Regulated 5 V output

500 mW output power

Quad dc-to-25 Mbps (NRZ) signal isolation channels Schmitt trigger inputs 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 (pending)

IEC 60747-5-2 (VDE 0884, Part 2)

VIORM = 560 V peak

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