Operation Description (Continued)
Noise Immunity
Noise from the current sense or the control signal may
cause significant pulse-width jitter, particularly in
continuous-conduction mode. Slope compensation
helps alleviate this problem. Good placement and
layout practices should be followed. Avoid long PCB
traces and component leads. Compensation and filter
components should be located near the SG6846.
Figure 19. Current Sense R-C Filter
© 2008 Fairchild Semiconductor Corporation
SG6846 • Rev. 1.3.1
12
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