Fairchild SG6742 Manuals

FAIRCHILD Design Guideline to Replace SG6742 with FAN6754A handbook

This application note introduces the design guidelines for the FAN6754A PWM controller, which features green mode, frequency hopping, constant power limit, and various protection functions. The power supply can meet stringent standby power regulations by maximizing light-load efficiency, and frequency hopping reduces electromagnetic emission. The constant-power-limit function minimizes component stress in abnormal conditions, and integrated protection functions improve reliability without increasing system cost. This application note explains how to replace the SG6742 PWM controller with the FAN6754A and provides a summary of the differences between the two devices.