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pwm控制器和变压器四通道隔离器驱动程序adum3470/adum3471/adum3472/adum3473/adum3474数据表
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The ADuM3470/ADuM3471/ADuM3472/ADuM3473/ ADuM3474 devices1 are quad-channel digital isolators with an integrated PWM controller and transformer driver for an isolated dc-to-dc converter. Based on the Analog Devices， Inc.， iCoupler® technology， the dc-to-dc converter provides up to 2 W of regulated， isolated power at 3.3 V to 24 V from a 5.0 V input supply or from a 3.3 V supply. This eliminates the need for a separate， isolated dc-to-dc converter in 2 W isolated designs. The iCoupler chip scale transformer technology is used to isolate the logic signals， and the integrated transformer driver with isolated secondary side control provides higher efficiency for the isolated dc-to-dc converter. The result is a small form factor， total isolation solution. The ADuM347x isolators provide four independent isolation channels in a variety of channel configurations and data rates （see the Ordering Guide）.
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