Download UC3846 Datasheet PDF
Fairchild Semiconductor
UC3846
Features - Automatic Feed Forward pensation - Programmable Pulse by Pulse Current Limiting - Automatic Symmetry Correction in Push-Pull Configuration - Enhanced Load Response Characteristics - Parallel Operation Capability for Modulator Power Systems - Differential Current Sense Amplifier with mon Mode Range - Double Pulse Suppression - 200m A Totem-Pole Outputs - ±2% Band gap Reference - Under-Voltage Lockout - Soft-Start Capability - Shutdown Terminal - 500KHz Operation Description The UC3846 control IC provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to...