Evaluation Board using LM3445 TRIAC dimmable Offline LED driver

Reference Design using part LM3445MM/NOPB by Texas Instruments

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Manufacturer

Texas Instruments
  • Application Category
    Lighting
  • Product Type
    Dimming LED Driver

Associated Documents

For End Products

  • Industrial LED Lighting
  • Residential Lighting
  • Solid state lighting

Description

  • Evaluation Board included in this shipment is capable of converting a 176VAC to 305VAC input that has been phase dimmed to drive multiple LED's at up to 500 mA average current. The Evaluation board utilizing the LM3445 will automatically adjust the LED current and light output in relation to the TRIAC firing angle. The target solution for this design was 230VAC input driving 8 series connected white LEDs. In this configuration the LM3445 will run at a nominal switching frequency of 80 kHz and supply a maximum of 350 mA

Key Features

  • Input Voltage
    176 to 305 (AC) V
  • Output Voltage
    27.2 V
  • Output Current
    0.35 A
  • Number of Derived Elements
    8

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
LM3445MM/NOPB Texas Instruments LED Drivers LED Driver 2850uA Supply Current 10-Pin VSSOP T/R Buy
LM3445MM/NOPB Texas Instruments LED Drivers LED Driver 2850uA Supply Current 10-Pin VSSOP T/R Buy

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