• Part: UC1854B
  • Description: Enhanced High Power Factor Preregulator
  • Manufacturer: UNITRODE
  • Size: Direct Link
Download UC1854B Datasheet PDF

UC1854B Key Features

  • Controls Boost PWM to Near Unity
  • Limits Line Current Distortion To <3%
  • World-Wide Operation Without Switches
  • Accurate Power Limiting
  • Fixed Frequency Average Current Mode Control
  • High Bandwidth (5MHz), Low Offset Current Amplifier
  • Integrated Current and Voltage Amp Output Clamps
  • Multiplier Improvements: Linearity, 500mV VAC Offset (eliminates external resistor), 0-5V Multout mon Mode Range
  • VREF "GOOD" parator
  • Faster and Improved Accuracy ENABLE parator