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Therefore, if you implement a current foldback scheme, don't make it very aggressive...in other words, that the foldback is no less than 40 or 50% of the full rated current.
Yes, I used a hiccup current limit scheme at the input of a SMPS to avoid dragging down the input power source in case of a fault (fuses and circuit breakers were forbidden). That allowed for very low dissipation in the current limit circuit thus requiring no heat sink.Because of the latchup problems, some people prefer "hiccup" current limiting schemes.