NCP1651 ,Single Stage Power Factor ControllerFeaturesGND2 15 NC• Pb−Free Package is Available*C NC3 14T• Fixed Frequency OperationRAMP COMP4 13 ..
NCP1651DR2 ,Single Stage Power Factor Controller2D11N4006D9T3BAS19LT1F1L2D22 D131 71N4006AZ23C18D7 D12100 H1N4006D3L31N4006253010100 HD4 1.5kE25C ..
NCP1653 ,Controller, PFC, Continuous Conduction Mode, Fixed Frequency, CompactELECTRICAL CHARACTERISTICS (For typical values T = 25°C. For min/max values, T = −40°C to +125°C, V ..
NCP1653A , Compact, Fixed−Frequency, Continuous Conduction Mode PFC Controller
NCP1653A , Compact, Fixed−Frequency, Continuous Conduction Mode PFC Controller
NCP1653DR2 , Compact, Fixed−Frequency, Continuous Conduction Mode PFC Controller
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NCP1651
Single Stage Power Factor Controller
NCP1651
Single Stage Power Factor
Controller
The NCP1651 is an active, power factor correction controller that
can operate over a wide range of input voltages. It is designed for
50/60 Hz power systems. It is a fixed frequency controller that can
operate in continuous or discontinuous conduction modes.
The NCP1651 provides a low cost, low component count solution
for isolated AC−DC converters with mid−high output voltage
requirements. The NCP1651 eases the task of meeting the
IEC1000−3−2 harmonic requirements for converters in the range of
50 W − 250 W.
The NCP1651 drives a flyback converter topology to operate in
continuous/discontinuous mode and programs the average input
current to follow the line voltage in order to provide unity power
factor. By using average current mode control CCM algorithm, the
NCP1651 can help provide excellent power factor while limiting the
peak primary current. Also, the fixed frequency operation eases the
input filter design.
The NCP1651 uses a proprietary multiplier design that allows for
much more accurate operation than with conventional analog
multipliers.
Features Pb−Free Package is Available* Fixed Frequency Operation Average Current Mode PWM Internal High Voltage Startup Circuit Continuous or Discontinuous Mode Operation High Accuracy Multiplier Overtemperature Shutdown External Shutdown Undervoltage Lockout Low Cost/Parts Count Solution Ramp Compensation Does Not Affect Oscillator Accuracy
Typical Applications High Current Battery Chargers Front Ends for Distributed Power Systems
*For additional information on our Pb−Free strategy and soldering details, please
