The NCP1650 is an active, power factor correction controller that can operate over a wide range of input voltages, and output power levels. It is designed to operate on 50/60 Hz power systems. This controller offers several different protection methods to assure safe, reliable operation under any conditions.

FEATUREs
• Fixed Frequency Operation
• Average Current Mode PWM
• Continuous or Discontinuous Mode Operation
• Fast Line/Load Transient Compensation
• True Power Limiting Circuit
• High Accuracy Multipliers
• Undervoltage Lockout
• Overvoltage Limiting Comparator
• Brown Out Protection
• Ramp Compensation Does Not Affect Oscillator Accuracy
• Operation from 25 to 250 kHz
• Pb−Free Package is Available*

Typical Applications
• Server Power Converters
• Front End for Distributed Power Systems