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ADUM5202

Analog Devices
Part Number ADUM5202
Manufacturer Analog Devices
Description Dual-Channel Isolators
Published Aug 20, 2008
Detailed Description Data Sheet Dual-Channel, 2.5 kV Isolators with Integrated DC-to-DC Converter ADuM5200/ADuM5201/ADuM5202 FEATURES isoPo...
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ADUM5202
ADUM5202

Overview
Data Sheet Dual-Channel, 2.
5 kV Isolators with Integrated DC-to-DC Converter ADuM5200/ADuM5201/ADuM5202 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 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.
07540-001 FUNCTIONAL BLOCK DIAGRAMS VDD1 1 GND1 2 VIA/VOA 3 V...


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