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UCC3809-2 Datasheet

Economy Primary Side Controller

Manufacturer: Unitrode

This datasheet includes multiple variants, all published together in a single manufacturer document.

UCC3809-2 Overview

The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. Internally implemented circuits include undervoltage lockout featuring startup current less than 100µA, a user accessible voltage reference, logic to ensure latched...

UCC3809-2 Key Features

  • User Programmable Maximum Duty Cycle
  • Accessible 5V Reference
  • Undervoltage Lockout
  • Operation to 1MHz
  • 0.4A Source/0.8A Sink FET Driver
  • Low 100µA Startup Current

UCC3809-2 Distributor