NCP1230P133G Datasheet PDF - ON Semiconductor

Low-Standby Power High Performance PWM Controller

●The NCP1230 represents a major leap towards achieving low standby power in medium−to−high power Switched−Mode Power Supplies such as notebook adapters, off−line battery chargers and

●consumer electronics equipment. Housed in a compact 8−pin package (SOIC−8, SOIC−7, or PDIP−7), the NCP1230 contains all needed control functionality to build a rugged and efficient power supply. The NCP1230 is a current mode controller with internal ramp compensation. Among the unique features offered by the NCP1230 is an event management scheme that can disable the front−end PFC circuit during standby, thus reducing the no load power consumption.

●Features

●•Current−Mode Operation with Internal Ramp Compensation

●•Internal High−Voltage Startup Current Source for Loss−Less Startup

●•Extremely Low No−Load Standby Power

●•Skip−Cycle Capability at Low Peak Currents

●•Direct Connection to PFC Controller for Improved No−Load Standby Power

●•Internal 2.5 ms Soft−Start

●•Internal Leading Edge Blanking

●•Latched Primary Overcurrent and Overvoltage Protection

●•Short−Circuit Protection Independent of Auxiliary Level

●•Internal Frequency Jittering for Improved EMI Signature

●•+500 mA/−800 mA Peak Current Drive Capability

●•Available in Three Frequency Options: 65 kHz, 100 kHz, and 133 kHz

●•Direct Optocoupler Connection

●•SPICE Models Available for TRANsient and AC Analysis

●•This is a Pb−Free Device

●Typical Applications

●•High Power AC−DC Adapters for Notebooks, etc.

●•Offline Battery Chargers

●•Set−Top Boxes Power Supplies, TV, Monitors, etc.