UC3851 Datasheet - UNITRODE

UC3851, PWM Controller

Programmable, Off-Line, PWM Controller UC1851 UC2851 UC3851 .
The UC1851 family of PWM controllers are optimized for offline primary side control.

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 Pe

UC3851-UNITRODE.pdf