NCP1250ASN65T1G Datasheet PDF - ON Semiconductor

Current-Mode PWM Controller for Off-line Power Supplies

●The NCP1250 is a highly integrated PWM controller capable of delivering a rugged and high performance offline power supply in a tiny TSOP−6 package. With a supply range up to 28 V, the controller hosts a jittered 65 kHz or 100 kHz switching circuitry operated in peak current mode control.

●Features

●Fixed−Frequency 65 or 100 kHz Current−Mode Control Operation

●Internal and Adjustable Over Power Protection (OPP) Circuit

●Frequency Foldback Down to 26 kHz and Skip−Cycle in Light Load Conditions

●Internal Ramp Compensation

●Internal Fixed 4 ms Soft−Start

●100 ms Timer−Based Auto−Recovery Short−Circuit Protection

●Frequency Jittering in Normal and Frequency Foldback Modes

●Option for Auto−Recovery or Latched Short−Circuit Protection

●OVP Input for Improved Robustness

●Up to 28 V VCCOperation

●+300 mA / −500 mA Source/Sink Drive Capability

●Less than 100 mW Standby Power at High Line

●EPS 2.0 Compliant

●These are Pb−Free Devices

●Typical Applications

●ac−dc Converters for TVs, Set−top Boxes and Printers

●Offline Adapters for Notebooks and Netbooks