NCP1239 Datasheet | onsemi

features a timer-based fault detection circuitry that ensures a quasi-flat overload detection, independent of the input voltage. Features - Fixed-Frequency 65-k Hz or 100-k Hz Current-Mode Control Operation - Frequency Foldback Down to 26 k Hz and Skip Mode to Maximize Performance in Light Load Conditions - Adjustable Over Power Protection (OPP) Circuit - High-Voltage Current Source with Brown-Out (BO) Detection - Internal Slope pensation - Internal Fixed Soft-Start - Frequency Jittering in Normal and Frequency Foldback Modes - 64-ms Timer-Based Short-Circuit Protection with Auto-Recovery or Latched Operation - Pre-Short Ready for Latched OCP Versions - Latched OVP on VCC - Autorecovery for C and E Versions - Latched OVP/OTP Input for Improved Robustness - 35-V VCC Operation - ±500 m A Peak Source/Sink Drive Capability - Internal Thermal Shutdown - Extremely Low No-Load Standby Power - Pin-to-Pin patible with the Existing NCP1236/1247 Series - These Devices are Pb-Free and are Ro HS pliant Typical Applications - AC-DC Converters for TVs, Set-Top Boxes and Printers - Offline Adapters for Notebooks and Netbooks SOIC- 7 CASE 751U PIN CONNECTIONS Fault 1 FB 2 CS 3 GND 4 8 HV 6 VCC 5 DRV MARKING DIAGRAM 8 1239xfff ALYWX 1239xfff x A L Y W G = Specific Device Code = A, B, C, D, E, F, G, H, I, J, K, L, M, N, P, Q or R fff = 065 or 100 = Assembly Location = Wafer Lot = Year = Work Week = Pb- Free Package ORDERING...