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.)
