DESCRIPTION

The NE/SE5562 is a single-output control circuit for switched-mode power supplies. This single monolithic IC contains all control and protection features needed for full-featured switched-mode power supplies.

FEATURES

•Stabilized power supply

•Temperature-compensated reference source

•Sawtooth generator

•Pulse width modulator

•Remote on/off switching

•Current limiting (2 levels)

•Auxiliary comparator, with adjustable hysteresis

•Loop fault protection

•Demagnetization/overvoltage protection

•Duty cycle adjust and clamp

•Feed-forward control

•External synchronization

•Total shutdown after adjustable number of overcurrent faults

•Soft-start