GENERAL DESCRIPTION

The ADuM5200/ADuM5201/ADuM52021 are dual-channel digital

isolators 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 at either 5.0 V or 3.3 V from a 5.0 V input supply, or 3.3 V

from a 3.3 V supply at the power levels shown in Table 1. 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 magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution.

The ADuM5200/ADuM5201/ADuM5202 isolators provide two

independent isolation channels in a variety of channel configurations

and data rates (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. See the

AN-0971 Application Note for board layout recommendations.

FEATURES isoPower integrated, isolated dc-to-dc converter Regulated 3.3 V or 5 V output Up to 500 mW output power

Dual, 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 (pending)

IEC 60747-5-2 (VDE 0884, Part 2):2003-01 VIORM = 560 VPEAK

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