Does the UC2854B have a minimum voltage limit set for current limit?
The UC2854B suggests to use 1V across the sense resistor for good noise margin. From the point of reducing power dissipation, it is preferred to use a smaller sense resistor, for example, we select a 0.125ohm, instead of 0.25ohm, then it needs a 0.5V limit set which can be done by the PKLMT using the resistor divider.
We’d like to confirm if the IC has an inside clamp to prevent the set point below a certain value, say 0.7V.
Thanks,
Dan
