The converter stops operaTIon after a programmed delay

when this input is acTIvated. This protecTIon can be

implemented as a cumulaTIve or integrating characteristic.

Thus under transient load conditions the converter output

will not be turned off, unless the extreme load condition

exceeds the timeout.

Implementing a Medium Power AC−DC Converter with the NCP139

Implementing a Medium Power AC−DC Converter with the NCP139