Hi @Kerr.FAE,
In your second paragraph, I suppose you’re asking if the constant current we’re seeing during parts of the start-up sequence with the real load, is due to capacitors charing at a constant dV/dt. If I put 500 ohms in parallell with the real load, I get the same current level, indicating that it is in fact a current limit.
I have now made measurements with resistive loads connected after start-up. With a load resistance high enough that the current limit shouldn’t trigger, it doesn’t, which is good.
When a load is connected after start-up, with a resistance low enough to trigger the intended current limit, the current is again limited at a lower value than expected. In this case, the output is shut off for 90 ms after only 2 ms, which matches the hiccup described in the datasheet. After that it goes back to the mode where it can stay current limited for 3-400 ms.
Zoom:
(Note that when there is zoom, the ms/div at the top doesn’t reflect the time axis shown. You need to instead look at numbers along the time axis at the bottom, where the unit is given with the leftmost number.)
(The drop of a few tenths of a volt as the load is connected is probably voltage drop across the amperemeter connected between the output and the load where the probe is connected.)