[原创] ADI ADuM6420A集成DC／DC转换器的四通道隔离器解决方案

ADI公司的ADuM6420A/ADuM6421A/ADuM6422A是四通道隔离器,集成了四个iCoupler®开关键控 (OOK) 数字隔离通道和iCoupler芯片级isoPower®变压器技术,它可在要求高达 500 mW的隔离式电源的应用中实现小外形尺寸增强型隔离式信号和电源解决方案.器件可高温运行在125℃(最大值),具有高共模瞬变抗扰度为100 kV/μs.主要用在RS-232收发器,电源起动偏压和栅极驱动,隔离传感器接口以及工业可编逻辑控制器(PLC). 中电网为您整理如下详细资料，本文介绍了ADuM6420A/ADuM6421A/ADuM6422A1主要特性,框图以及评估板EVAL-ADUM6421ARNZ/EVAL-ADUM6421AURNZ主要特性,电路图,材料清单和PCB设计图.

The ADuM6420A/ADuM6421A/ADuM6422A1 are quad-channel digital isolators with an isoPower®, integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides regulated, isolated power that meets CISPR 32/EN 55032 Class B limits at a full load on a 2-layer printed circuit board (PCB) with ferrites. Popular voltage combinations and the associated output current levels are listed in Table 1.

The ADuM6420A/ADuM6421A/ADuM6422A eliminate the need for a separate, isolated dc-to-dc converter in 500 mW, isolated designs. The iCoupler chip scale transformer technology is used for isolated logic signals and for the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution.
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