UCC28221 Datasheet PDF - Texas Instruments Dual PWM Controller Specs

UCC28221 - Dual PWM Controller

This page provides the datasheet information for the UCC28221, a member of the UCC28220 Dual PWM Controller family.

Datasheet Summary

Description

The UCC28220 and UCC28221 are a family of BiCMOS interleaved dual channel PWM controllers.

Peak current mode control is used to ensure current sharing between the two channels.

A precise maximum duty cycle clamp can be set to any value between 60% and 90% duty cycle per channel.

Features

1 2-MHz High-Frequency Oscillator With 1-MHz Operation Per Channel.
Matched Internal Slope Compensation Circuits.
Programmable Maximum Duty Cycle Clamp 60% to 90% Per Channel.
Peak Current Mode Control With Cycle-by-Cycle Current Limit.
Current Sense Discharge Transistor for Improved Noise Immunity.
Accurate Line Undervoltage and Overvoltage Sense With Programmable Hysteresis.
Opto-Coupler Interface.
110-V Internal Start-Up.

Datasheet Details

Part number	UCC28221
Manufacturer	Texas Instruments
File Size	1.29 MB
Description	Dual PWM Controller
Datasheet	UCC28221 Datasheet
Additional preview pages of the UCC28221 datasheet.

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Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community UCC28220, UCC28221 SLUS544G – SEPTEMBER 2003 – REVISED APRIL 2017 UCC2822x Interleaved Dual PWM Controller With Programmable Max Duty Cycle 1 Features •1 2-MHz High-Frequency Oscillator With 1-MHz Operation Per Channel • Matched Internal Slope Compensation Circuits • Programmable Maximum Duty Cycle Clamp 60% to 90% Per Channel • Peak Current Mode Control With Cycle-by-Cycle Current Limit • Current Sense Discharge Transistor for Improved Noise Immunity • Accurate Line Undervoltage and Overvoltage Sense With Programmable Hysteresis • Opto-Coupler Interface • 110-V Internal Start-Up JFET (UCC28221) • Operates From 12-V Supply (UCC28220) • Programmable Soft Start 2 Applications • High Output Current (50-A t

Published: Apr 25, 2020 |