This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Phase Dimmable, Primary Side Power Regulated, PFC Flyback Controller for LED Lighting


Design kits & evaluation modules (3)

Name Part# Type
LM3447 Flyback Controller for LED Lighting Evaluation Module Board LM3447-A19-230VEVM Evaluation Modules & Boards
LM3447 Flyback Controller for LED Lighting Evaluation Module Board LM3447-A19-120VEVM Evaluation Modules & Boards
LM3447 PFC Flyback Controller for LED Lighting Evaluation Module LM3447-PAR-230VEVM Evaluation Modules & Boards

Reference designs

Description Part Number Company Tool Type
High PF dimmable GU10 LED driver solution PMP4339 Texas Instruments Reference designs
Isolated LED Driver with PFC for A19 Lamp Application using LM3447 - 230VAC, 36VLED 12W PMP8013 Texas Instruments Reference designs
LM3447 - 230VAC, 10W, Phase Dimmable Non-isolated Buck-Boost PFC LED Driver PMP8025 Texas Instruments Reference designs

Software (1)

LM3447 Design Tool  (ZIP 131 KB )    17 May 2012  

Development tools (1)

Name Part# Type
LM3447 Design Spreadsheet LM3447DESIGN-CALC Calculation Tools

CAD/CAE symbols

Part# Package | Pins CAD File (.bxl) STEP Model (.stp)
LM3447 Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Please follow the instructions below to view the CAD symbols:

Step 1: Download and install the Ultra Librarian software

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Step 3: Open the .bxl file with the Ultra Librarian software.

You can always access the complete CAD/CAE Symbols database at //webench.ti.com/cad/

Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a free download.

The UL Reader is a subset of the Ultra Librarian toolset that can generate, import, and export components and their attributes in virtually any EDA CAD/CAE format.