UC1851 Datasheet PWM Controller

Manufacturer: UNITRODE

Overview: Programmable, Off-Line, PWM Controller UC1851 UC2851 UC3851.

UC1851 pwm controller by UNITRODE - Datasheet Preview

Datasheet Details

Part number	UC1851
Manufacturer	UNITRODE
File Size	766.22 KB
Description	PWM Controller
Download	UC1851 Download (PDF)

General Description

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

These devices include a high current totem pole output stage and a toggle flip-flop for absolute 50% duty cycle limiting.

In all other respects this line of controllers is pin for pin compatible with the UC1841 series.

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.

UC1851 Distributor & Price

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