ADI ADuM540x四路数字绝缘方案

ADI 公司的ADuM540x是四路数字绝缘器,它采用ADI公司的iCoupler® 技术,集成了isoPower™绝缘的DC/DC转换器,绝缘电源可有5V或3.3V输出,可用于RS-232/RS-422/RS485收发器,工业现场总线隔离,电源起动偏压和栅极驱动以及工业PLC等.本文介绍了ADuM540x的主要特性, 功能方框图以及ADuM540x评估板主要特性,电路图和材料清单(BOM).

Quad-Channel Isolators with Integrated DC-to-DC Converter ADuM5401/ADuM5402/ADuM5403/ADuM5404

The ADuM5401/ADuM5402/ADuM5403/ADuM54041 devices are quad-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 from a 5.0 V input supply or 3.3 V from a 3.3 V supply. This 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 ADuM5401/ADuM5402/ADuM5403/ADuM5404 isolators provide four independent isolation channels in a variety of channel configurations and data rates



图1.ADuM540x功能方框图

ADuM540x主要特性: ..

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