說明

• Typical Application for Sg1844 Current Mode PWM Controller for External Duty Cycle Clamp and Multi-Unit Synchronization. The SG1844 family of control ICs provides all the necessary features to implement off-line fixed frequency, current mode switching power supplies with a minimum number of external components. Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-by pulse current limiting and inherent protection of the power supply output switch