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UC2851

Part Number	UC2851
Manufacturer	UNITRODE
Description	PWM Controller
Published	Apr 21, 2020
Detailed Description	Programmable, Off-Line, PWM Controller UC1851 UC2851 UC3851 FEATURES • All Control, Driving, Monitoring, and Protectio...
Datasheet	UC2851 PDF File

Overview

Programmable, Off-Line, PWM Controller UC1851 UC2851 UC3851 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 • Latch Off or Continuous Retry After Fault • 1% Reference Accuracy • 500kHz Operation • 18 Pin DIL or 20 Pin PLCC Package BLOCK DIAGRAM DESCRIPTION The UC1851 fa...

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