Is Rblank required to operate the Desaturation detection in the ADuM4135?
Rblank is presented as a possible option to increase the desat detection current source feeding the blanking capacitor Cblank. There is already a precision internal 500 µA current source that feeds Cblank, so Rblank is not necessary, but it can increase the current available to charge Cblank, allowing you to use a larger Cblank for the same blanking time. This is sometimes useful in noisy environments.
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