Housed in SOIC−8 or PDIP−8 package, the NCP1200 represents a major leap toward ultra−compact Switchmode Power Supplies. Due to a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external components. Furthermore, an integrated output short−circuit protection lets the designer build an extremely low−cost AC−DC wall adapter associated with a simplified feedback scheme.

FEATUREs
•No Auxiliary Winding Operation
•Internal Output Short−Circuit Protection
•Extremely Low No−Load Standby Power
•Current−Mode with Skip−Cycle Capability
•Internal Leading Edge Blanking
•250 mA Peak Current Source/Sink Capability
•Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz
•Direct Optocoupler Connection
•Built−in Frequency Jittering for Lower EMI
•SPICE Models Available for TRANsient and AC Analysis
•Internal Temperature Shutdown
•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

Typical Applications
•AC−DC Adapters
•Offline Battery Chargers
•Auxiliary/Ancillary Power Supplies (USB, Appliances, TVs, etc.)