LM3450A Datasheet (PDF) Download
National Semiconductor
LM3450A

Description

The LM3450/50A is a power factor controller (PFC) with separate phase dimming decoder.

Key Features

  • Critical conduction mode PFC
  • Over-voltage protection
  • Feedback short circuit protection
  • 70:1 PWM decoded from phase dimmer
  • Analog dimming
  • Programmable dimming range
  • Digital angle and dimmer detection
  • Dynamic holding current
  • Smooth dimming transitions
  • Low power operation

Applications

  • Dimmable downlights, troffers, and lowbays