Self-Supplied Monolithic Switcher for Low Standby Power Offline SMPS

The NCP1015 integrates a fixed−frequency current−mode controller and a 700 V voltage MOSFET. Housed in a PDIP−7 or
SOT−223 package, the NCP1015 offers everything needed to build a rugged and low−cost power supply, including soft−start, frequency jittering, short−circuit protection, skip−cycle, a maximum peak current set−point and a Dynamic Self−Supply (no need for an auxiliary winding).

FEATUREs
•Built−in 700 V MOSFET with typical R
DS(on)of 11 
•Large Creepage Distance between High−voltage Pins
•Current−mode Fixed Frequency Operation: 65 kHz −100 kHz
•Skip−cycle Operation at Low Peak Currents Only: No Acoustic Noise!
•Dynamic Self−Supply, No Need for an Auxiliary Winding
•Internal 1 ms Soft−start
•Auto−recovery Internal Output Short−circuit Protection
•Frequency Jittering for Better EMI Signature
•Below 100 mW Standby Power if Auxiliary Winding is Used
•Internal Temperature Shutdown
•Direct Optocoupler Connection
•SPICE Models Available for TRANsient and AC Analysis
•This is a Pb−Free Device

Typical Applications
•Low Power ac−dc Adapters for Chargers
•Auxiliary Power Supplies (USB, Appliances, TVs, etc.)