NCP12400 Datasheet | onsemi

features a timer-based fault detection that ensures the detection of overload and an adjustable pensation to help keep the maximum power independent of the input voltage. Due to frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieving very low standby power consumption. Internal frequency jittering, ramp pensation, and a versatile latch input make this controller an excellent candidate for the robust power supply designs. A dedicated Off Mode allows to reach the extremely low no load input power consumption via “sleeping” whole device and thus minimize the power consumption of the control circuitry. Features - Fixed-Frequency Current-Mode Operation 65 k Hz or 100 k Hz Frequency Options - Frequency Foldback then Skip Mode for Maximized Performance in Light Load and Standby Conditions - Timer-Based Overload Protection with Latched (Option A) or Autorecovery (Option B) Operation - High-Voltage Current Source with Brown-Out Detection and Dynamic Self-Supply, Simplifying the Design of the VCC Circuitry - Frequency Modulation for Softened EMI Signature - Adjustable Overpower Protection Dependant on the Mains Voltage - Fault Input for Overvoltage and Over Temperature Protection - VCC Operation up to 28 V, with Overvoltage Detection - 300/500 m A Source/Sink Drive Peak Current Capability - 4/10 ms Soft-Start - Internal Thermal Shutdown - No-Load Standby Power < 30 m W - X2 Capacitor in EMI Filter Discharging Feature - These are Pb-Free Devices Typical Applications - Offline Adapters for Notebooks, LCD, and Printers - Offline Battery Chargers - Consumer Electronic Power Supplies - Auxiliary/Housekeeping Power Supplies - Offline Adapters for Notebooks © Semiconductor ponents Industries, LLC, 2017 February, 2025 - Rev. 10 DATA SHEET .onsemi. SOIC-7 CASE 751U MARKING DIAGRAM 8 XXXXX ALYWG G 400VWXYZf = Specific Device Code (see page 2) A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb-Free...