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UCC28521 Datasheet Advanced Pfc/pwm Combination Controller

Manufacturer: Texas Instruments

Overview: UCC28521, UCC28528 SLUS608D − JANUARY 2005 REVISED NOVEMBER 2005 ADVANCED PFC/PWM COMBINATION CONTROLLER WITH TRAILINGĆEDGE/TRAILINGĆEDGE.

General Description

The UCC28521 and UCC28528 combination PFC/PWM controllers provide complete control functionality for any off-line power system requiring compliance with the IEC1000−3−2 harmonic reduction requirements.

By combining the control and drive signals for the PFC and the PWM stages into a single device, significant performance and cost benefits are gained.

Based on the UCC28511, the new devices employ an average current mode control architecture with input voltage feedforward.

Key Features

  • D Provides Control of PFC and PWM Power Stages In One Device D Trailing-Edge PFC, Trailing-Edge PWM Modulation D Built-In Sequencing of PFC and PWM Turn-On D 2-A Source and 3-A Sink Gate Drive for Both PFC and PWM Stages D Typical 16-ns Rise Time and 7-ns Fall Time into 1-nF Loads PFC Features.
  • Average-Current-Mode Control for Continuous Conduction Mode Operation.
  • Highly-Linear Multiplier for Near-Unity Power Factor.
  • Input Voltage Feedforward Implementation.
  • I.

More Datasheets from Texas Instruments

Part Number Description
UCC28528 Advanced PFC/PWM Combination Controller
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UCC28502 BiCMOS PFC/PWM Combination Controller
UCC28503 BiCMOS PFC/PWM Combination Controller
UCC28510 Advanced PFC/PWM Combination Controllers
UCC28511 Advanced PFC/PWM Combination Controllers
UCC28512 Advanced PFC/PWM Combination Controllers
UCC28513 Advanced PFC/PWM Combination Controllers
UCC28514 Advanced PFC/PWM Combination Controllers

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