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reference designUCC28811 | Demoboard SLUU423

Texas Instruments UCC28811 | Demoboard SLUU423

Isolated 240-W Offline LED Driver Using UCC28810, UCC28811 and TPS92020

Overview

TopologyBuck Converter
Input voltage108-265 V
Output 185 V / 3 A

Description

This driver is comprised of three stages, including PFC stage, Buck stage, and Isolation stage. Both PFCand Buck stage operate in critical conduction mode. The isolation stage is a half-bridge resonant currentconverter with an option to adopt the multi-transformer design. A constant current is controlled by the Buckstage to provide 3 A to the LED strings, with output voltage range from 70 V to 85 V.

Features

  • 108 VRMS to 265 VRMS Offline Operation
  • Power Factor Correction
  • Boost Follower
  • Constant Current Control
  • Output Isolation
  • Onboard or External PWM Dimming

Typical applications

  • Street Lighting
  • High Bay Lighting

More information

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750311311
SPECPower Inductor
Availability
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Power Inductor
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