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UCC2960 - Primary-Side Startup Controller

This page provides the datasheet information for the UCC2960, a member of the UCC3960 Primary-Side Startup Controller family.

Datasheet Summary

Description

The UCC3960 primary-side startup controller is a unique solution that provides all the primary-side functions required for a single-ended, isolated offline, switch-mode power converter that uses secondary-side PWM control.

Features

  • such as output current sharing and synchronous rectification are implemented more easily. The UCC3960 provides all the circuitry required on the primary side of a secondary.
  • side controlled power supply. It features a free running 60-kHz to 360-kHz oscillator that is synchronizable to the secondary-side PWM signal and also has the ability to accept start/stop PWM commands from the isolating pulse edge transformer. The use of an extremely small and low-cost pulse transformer allows for hig.

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Datasheet preview – UCC2960

Datasheet Details

Part number UCC2960
Manufacturer Unitrode
File Size 237.24 KB
Description Primary-Side Startup Controller
Datasheet download datasheet UCC2960 Datasheet
Additional preview pages of the UCC2960 datasheet.

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Full PDF Text Transcription

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ą D Operates With Secondary-Side PWM Control D Receives Isolated PWM Command Through a Pulse-Edge-Transformer D Initial Free-Running Soft-Start Up with Duty-Cycle Clamping D Up to 400-kHz Synchronizable Switching Frequency D High-Current FET Drive (1.5-A Sink, 0.
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