LT3476 - High Current Quad Output LED Driver

Features
  • True Color PWM Dimming Delivers Up to 5000:1 Dimming Ratio (In Boost Configuration)
  • LED Current Regulation with High-Side Sense
  • VADJ Pin Accurately Sets LED Current Sense Threshold Over Range 10mV to 120mV
  • Four Independent Driver Channels with 1.5A, 36V Internal NPN Switches
  • Frequency Adjust Pin: 200kHz to 2MHz
  • High Efficiency Conversion = Up to 96%
  • Open LED Protection
  • Low Shutdown Current < 10μA
  • Wide VIN Range: 2.8V to 16V
  • Thermally Enhanced, 38-Lead, 5mm × 7mm QFN Package
Typical Application

Applications
  • RGGB Lighting
  • Automotive and Avionic Lighting
  • TFT LCD Backlighting
  • Constant-Current Sources
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT3476EUHF#PBF5x7 QFN-38E$6.63$4.64
LT3476EUHF#TRPBF5x7 QFN-38E$4.70
LT3476IUHF#PBF5x7 QFN-38I$7.63$5.34
LT3476IUHF#TRPBF5x7 QFN-38I$5.40
Demo Boards
Part NumberDescriptionPrice
DC976ALT3476EUHF Demo Board | Quad Buck Mode LED Driver, PVIN ≤ 33V, Up to 27VLED @ 350mA or 1.05A$150.00
Datasheet
Reliability Data
LT Journal
Press Release
LTspice
Related Product
LT3476 - High Current Quad Output LED Driver
LT3476 - 高电流四通道输出 LED 驱动器
R303 Reliability Data
Dec 2006 - Reliable, Efficient LED Backlighting for Large LCD Displays
4 通道 LED 驱动器驱动多达 32 个 1A LED 并具有 1000:1 的 True Color PWMTM 调光能力
LT3476 Footprints and Symbols
LT3476 Demo Circuit - High Current Quad Buck LED Driver (33V to 7x 3.4V LEDs @ 1A)