CRE1 Series

Isolated 1W Single Output Isolated DC-DC Converters

KDC_CRE1.D02 Page 6 of 14

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APPLICATION NOTES

Minimum load

The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in

an increase in output voltage, which may rise to typically double the specified output voltage if the output load falls to less than 5%.

Capacitive loading and start up

Typical start up times for this series, with a typical input voltage rise time of 2.2µs and output capacitance of 10µF, are shown in the table below. The product

series will start into a capacitance of 47µF with an increased start time, however, the maximum recommended output capacitance is 10µF.

Typical Start-Up Wave Form

Start-up time

µs

CRE1S0505DC

190

CRE1S0505SC

190

CRE1S0515SC

1790

CRE1S1205SC

125

CRE1S1212SC

500

CRE1S2405SC

135

CRE1S2412SC

430

CRE1S0305S3C

295

CRE1S0505S3C

165

CRE1S0505MC

1368

CRE1S0505MEC

170