NCP1001P ,Integrated Off-Line Switching RegulatorELECTRICAL CHARACTERISTICSCharacteristics Symbol Min Typ Max UnitPOWER SWITCH CIRCUITPower Switch C ..
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NCP1001P
Integrated Off-Line Switching Regulator
NCP1000, NCP1001,
NCP1002
Integrated Off-Line
Switching Regulator
The NCP1000 through NCP1002 series of integrated switching
regulators, combine a fixed frequency PWM controller with an
integrated high voltage power switch circuit. This chip allows for
simple design and minimal parts count for very low cost applications
which utilize an ac input. This chip is designed to power a single ended
topology, typically a discontinuous mode flyback, with secondary side
sensing.
The internal high voltage switch circuit and start−up circuit can
function in continuous operation over a wide range of inputs, from 85 ac to 265 Vac, and thus can be used in any existing power system in
the world. Though inexpensive, these devices include a number of
features such as undervoltage lockout, over−temperature protection,
bandgap reference and leading edge blanking that make them an
excellent value.
Features Highly Integrated Solution Operates Over Universal Input Voltage Range (85 Vac to 265 Vac) On−board 700 Volt Power Switch Circuit Minimal External Parts Required Input Undervoltage Lockout with Hysteresis Very Low Standby Current No Minimum Load Requirement Opto Fail−safe Shutdown Circuit
Typical Applications Cell Phone Chargers Wall Adapters On−board AC−DC Converters
