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NCP1651 - Single Stage Power Factor Controller

Datasheet Summary

Description

Pin No.

Drive output for power FET or IGBT.

Capable of driving small devices, or can be connected to an external driver for larger transistors.

Features

  • 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.
  • This is a Pb.
  • Free Device Typical.

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Datasheet preview – NCP1651

Datasheet Details

Part number NCP1651
Manufacturer ON
File Size 295.36 KB
Description Single Stage Power Factor Controller
Datasheet download datasheet NCP1651 Datasheet
Additional preview pages of the NCP1651 datasheet.

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Full PDF Text Transcription

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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.
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