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Hi
This pin senses the peak current utilized for current-mode control and for currentlimiting functions. The peak signal is applied to this pin before pulse-by-pulse current limiting activates and is approximately 0.5 V
CS is a direct input to the PWM and current-limit comparators of the UCC2897A controller. The CS pin never connects directly across the current-sense resistor (RCS) of the power converter. A small, customary R-C filter between the current-sense resistor and the CS pin is necessary to accommodate the proper operation of the onboard slope-compensation circuit and in order to protect the interna- discharge transistor connected to the CS pin (RF1, CF).
