The NE/SE5560 is a control circuit for use in switched-mode power supplies. This single monolithic chip incorporates all the control and housekeeping (protection) functions required in switched-mode power supplies, including an internal temperature-compensated reference source, internal Zener references, sawtooth generator,pulse-width modulator, output stage and various protection circuits.

FEATURES

•Stabilized power supply
•Temperature-compensated reference source
•Sawtooth generator
•Pulse-width modulator
•Remote on/off switching
•Current limiting
•Low supply voltage protection
•Loop fault protection
•Demagnetization/overvoltage protection
•Maximum duty cycle clamp
•Feed-forward control
•External synchronization