[原创]ADI ADuM6420A带DC／DC转换器的四道数字隔离器解决方案

ADI公司的ADuM6420A/ADuM6421A/ADuM6422A是采用isoPower®集成隔离式直流/直流转换器的四通道数字隔离器.基于 ADI 公司的iCoupler®技术,可提供稳压隔离式电源,在配备铁氧体的 2 层印刷电路板(PCB)上在满载时符合 CISPR 32/EN 55032 B 级限制.100mA输出电流,满足AEC-Q100汽车应用规范, 在 500 mW的隔离式设计中不再需要单独的隔离式直流/直流转换器.具有四路DC到100Mbps信号隔离通路,可提供外形小巧四个独立的完全隔离式解决方案.高温125C工作温度,共模瞬态免疫为100 kV/μs, VIORM = 566 V peak.主要用在RS-232 收发器,电源启动偏置和栅极驱动,隔离式传感器接口和工业可编程逻辑控制器(PLC)以及汽车车载充电器(OBC)和DC/DC转换器.本文介绍了ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ ADuM6424A主要特性,功能框图,.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/ADuM6422A/ADuM6423A/ ADuM6424A1 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.

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