NCP1650-D| Datasheet

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NCP1650 Power Factor Controller
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. The PWM is a fixed frequency, average current mode controller with a wide complement of features. These features allow for both flexibility as well as precision in it's application to a circuit. Critical components of the internal circuitry are designed for high accuracy, which allows for precise power and current limiting, therefore minimizing the amount of overdesign necessary for the power stage components. The NCP1650 is designed with a true power limiting circuit that will maintain excellent power factor even in constant power mode. It also contains features that allow for fast transient response to changing load currents and line voltages.
Features

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16 1

SO-16 D SUFFIX CASE 751B

MARKING DIAGRAM
16 NCP1260G AWLYWW 1 A WL Y WW G = Assembly Location = Wafer Lot = Year = Work Week = Pb-Free Package

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*

PIN CONNECTIONS
Vin 1 Vref 2 AC COMP 3 AC REF 4 AC INPUT 5 FB/SD 6 LOOP COMP 7 PCOMP 8 (Top View) 16 OUTPUT 15 GND 14 CT 13 RAMP COMP 12 IS- 11 Iavg-fltr 10 Iavg 9 Pmax

Typical Applications

Server Power Converters Front End for Distributed Power Systems

ORDERING INFORMATION
Device NCP1650DR2 NCP1650DR2G Package SOIC-16 SOIC-16 (Pb-Free) Shipping 2500/Tape & Reel 2500/Tape & Reel

*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
Semiconductor Components Industries, LLC, 2005

For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Publication Order Number: NCP1650/D

October, 2005 - Rev. 10