onsemi NCP1308
The NCP1308 combines a true current mode modulator and a demagnetization detector to ensure full borderline/Critical Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi-Resonant operation). The Dynamic Self-Supply (DSS) drastically simplifies the transformer design in avoiding the use of an auxiliary winding to supply the NCP1308.FEATURES
●ăFree-Running Borderline/Critical Mode Quasi-Resonant Operation●ăCurrent-Mode with Adjustable Skip Cycle Capability
●ăDynamic Self-Supply Type of VCC
●ăAuto-Recovery Overcurrent Protection
●ăImproved UVLO for VCC below 10 V
●ăLatching Overvoltage Protection on VCC
●ă500 mA Peak Current Source/Sink Capability
●ăInternal 1.0 ms Soft-Start
●ăInternal 10 ms Minimum TOFF
●ăAdjustable Skip Level
●ăInternal Temperature Shutdown
●ăInternal Leading Edge Blanking
●ăDirect Optocoupler Connection
●ăSPICE Models Available for TRANsient Analysis
●ăThis is a Pb-Free Device Typical
APPLICATIONS
●ăAC-DC Adapters for Notebooks, etc.●ăOffline Battery Chargers
●ăConsumer Electronics (DVD Players, Set-Top Boxes, TVs, etc.)
●ăAuxiliary Power Supplies (USB, Appliances, TVs, etc.) 8 1 SOIC-8 D SUFFIX CASE 751 MARKING DIAGRAM 8 N1308 ALYW G 1 A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb-Free Package PIN CONNECTIONS Dmg 1 FB 2 CS 3 GND 4 8 HV 7 6 VCC 5 Drv (Top View) ORDERING IN...