Evaluation Board using LM3433 DC-DC buck constant current controller for a high brightness LED driver

Reference Design using part LM3433 by Texas Instruments

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LM3433 Evaluation Board Schematic (Sheet 1 of 3)
Load Board Schematic (Sheet 2 of 3)
LED DIM Adapter Board Schematic (Sheet 3 of 3)
Image 1 / 3

Manufacturer

Texas Instruments
  • Application Category
    Lighting
  • Product Type
    High Brightness LED Driver

Associated Documents

For End Products

  • Automotive Lighting
  • LCD Backlighting
  • Projector
  • Solid state lighting

Description

  • Evaluation Board using LM3433 is an adaptive constant on-time DC/DC buck constant current controller designed to drive a high brightness LEDs at high forward currents. It is a true current source that provides a constant current with constant ripple current regardless of the LED forward voltage drop. The board can accept an input voltage ranging from -9V to -14V w.r.t. GND. The output configuration allows the anodes of multiple LEDs to be tied directly to the ground referenced chassis for maximum heat sink efficacy when a negative input voltage is used

Key Features

  • Input Voltage
    -9 to -14 V
  • Output Current
    2 to 9 A
  • Number of Derived Elements
    3

Featured Parts (5)

Featured Parts
Part Number Manufacturer Type Description
LM5002MAX/NOPB Texas Instruments DC to DC Converter and Switching Regulator Chip Conv DC-DC 3.1V to 75V Step Up Single-Out 1.26V to 75V 8-Pin SOIC T/R Buy
LM5002MA/NOPB Texas Instruments DC to DC Converter and Switching Regulator Chip Conv DC-DC 3.1V to 75V Step Up Single-Out 1.26V to 75V 8-Pin SOIC Tube Buy
LM5002MA/NOPB Texas Instruments DC to DC Converter and Switching Regulator Chip Conv DC-DC 3.1V to 75V Step Up Single-Out 1.26V to 75V 8-Pin SOIC Tube Buy
LM5002MAX Texas Instruments DC to DC Converter and Switching Regulator Chip Conv DC-DC 3.1V to 75V Step Up Single-Out 1.26V to 75V 8-Pin SOIC T/R Buy
LM5002MAX/NOPB Texas Instruments DC to DC Converter and Switching Regulator Chip Conv DC-DC 3.1V to 75V Step Up Single-Out 1.26V to 75V 8-Pin SOIC T/R Buy

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