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UCC28221 Datasheet Dual Pwm Controller

Manufacturer: Texas Instruments

Overview: 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.

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

General 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.

Key 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.

More Datasheets from Texas Instruments

Part Number Description
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UCC2800 Low-Power BiCMOS Current-Mode PWM Controllers
UCC2800-EP LOW-POWER BICMOS CURRENT-MODE PWM
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UCC2801 Low-Power BiCMOS Current-Mode PWM Controllers

UCC28221 Distributor