• Part: UC2851
  • Description: PWM Controller
  • Manufacturer: UNITRODE
  • Size: 766.22 KB
UC2851 Datasheet (PDF) Download
UNITRODE
UC2851

Description

The UC1851 family of PWM controllers are optimized for offline primary side control.

Key Features

  • All Control, Driving, Monitoring, and Protection Functions Included
  • Low-Current Off Line Start Circuit
  • Voltage Feed Forward or Current Mode Control
  • High Current Totem Pole Output
  • 50% Absolute Max Duty Cycle
  • PWM Latch for Single Pulse Per Period
  • Pulse-by-Pulse Current Limiting plus Shutdown for Over-Current Fault
  • No Start-Up or Shutdown Transients
  • Slow Turn-On Both Initially and After Fault Shutdown
  • Shutdown Upon Over or Under Voltage Sensing