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110-W Multiple String LED Driver with Universal Line Input and PFC Evaluation Module



  • 90-VRMS to 265-VRMS Operation
  • Boost Follower or Fixed Output PFC Stage
  • PFC Disable
  • Output Current Disable
  • External or Internal PWM Dimming
  • Output Isolated from Line Input
  • Open Circuit Protection (If one LED string fails open the remaining strings stay on.)

Texas Instruments  UCC28810EVM-003

The UCC28810EVM-003 is an 110-W offline AC-to-DC LED current driver with power factor correction. This design utilizes a three stage approach with a universal input boost PFC stage, a low-side buck stage providing a controlled current source and a half-bridge DC transformer stage to provide isolation to four LED strings.