原标题：ADI ADuM6202 5KV隔离双路DC电源转换方案

　　ADI公司的ADuM6200/ADuM6201/ADuM62021是5KV隔离的双路DC/DC电源转换器和隔离器,包括了两路数字隔离器iCoupler 和两路DC/DC转换器isoPower,5.0V输入时可提供绝缘输出5.0V或3.3V,功率高达400W,信号隔离是DC到25MHz(NRZ), 主要用在RS-232/RS-422/RS-485收发器,工业现场总线隔离,电源起动偏压和栅极驱动,隔离的传感器接口以及工业PLC等.本文介绍了ADuM6200/ADuM6201/ADuM62021主要特性,方框图,以及EVAL-ADuMQSEBZ评估板主要特性,电路图,材料清单和评估板布局图.

　　The ADuM6200/ADuM6201/ADuM62021 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 400 mW of regulated, iso-lated power at either 5.0 V or 3.3 V from a 5.0 V input supply, or at 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 ADuM6200/ADuM6201/ADuM6202 isolators provide two independent isolation channels in a variety of channel configura-tions 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.

　　ADuM6200/ADuM6201/ADuM62021主要特性:

　　isoPower integrated, isolated dc-to-dc converter

　　Regulated 5 V or 3.3 V output

　　Up to 400 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℃ maximum

　　High common-mode transient immunity: >25 kV/μs

　　Safety and regulatory approvals

　　UL recognition (pending)

　　5000 V rms for 1 minute per UL 1577

　　CSA Component Acceptance Notice #5A

　　IEC 60601-1: 125 V rms

　　IEC 60950-1: 380 V rms

　　VDE certificate of conformity (pending)

　　IEC 60747-5-2 (VDE 0884 Part 2):2003-01

　　VIORM = 846 V peak

　　ADuM6200/ADuM6201/ADuM62021应用:

　　RS-232/RS-422/RS-485 transceivers

　　Industrial field bus isolation

　　Power supply start-up bias and gate drives

　　Isolated sensor interfaces

　　Industrial PLCs

　　图1.ADuM6200/ADuM6201/ADuM62021功能方框图

　　EVAL-ADuMQSEBZ评估板

　　The EVAL-ADuMQSEBZ can be used with most Coupler® isolation products in the 16-lead, wide-body SOIC and QSOP packages. The evaluation board supports the common pad positions for power, ground, and I/O pins found in nearly all of the Coupler products and is a configurable board that can be adapted to many Coupler products.

　　EVAL-ADuMQSEBZ评估板主要特性:

　　Convenient connections for power through screw terminal blocks

　　Add-on BNC connector for 50 Ω signal sources

　　On-board signal routing

　　Support for signal wrap back

　　Simple signal paths to reduce transmission line effects

　　Pull-up and pull-down provided for control lines

　　Support for isoPower

　　Project area that supports surface-mount and through-hole devices

　　图.EVAL-ADuMQSEBZ评估板电路图

　　EVAL-ADuMQSEBZ评估板材料清单(BOM):