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TPS23754设计中的光耦怎么选择，现在用的是EL357N，可以正常工作，有TI建议用EL357NA，EL357N的CTR为50~600，EL357NA的CTR为80~160，请大侠帮忙分析下，谢谢。
你好，
已回复，如果担心可以推到下传函看是否稳定，或者AP300扫一下环路。
