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User's Guide
SLVU340–October 2009
TL4242EVM-543
The TL4242EVM-543 evaluation module is designed to evaluate the TL4242 integrated circuit in a typical
LED application. This user's guide provides a connector and test point description, the schematic of the
EVM, bill of materials, and board layout.
Contents
1 Introduction .................................................................................................................. 2
1.1 Description .......................................................................................................... 2
1.2 Applications ......................................................................................................... 2
1.3 Features ............................................................................................................. 2
2 TL4242EVM-543 Schematic ............................................................................................... 2
3 Connector and Test Point Descriptions .................................................................................. 3
3.1 Enable Jumpers/Switches ........................................................................................ 3
4 TL4242EVM Assembly Drawings and Layout ........................................................................... 4
4.1 Board Design and Layout ......................................................................................... 4
4.2 Power Dissipation and Thermal Considerations ............................................................... 6
5 Bill of Materials .............................................................................................................. 7
List of Figures
1 TL4242EVM-543 Schematic............................................................................................... 3
2 TL4242EVM-543 Component Placement (Viewed From Top)........................................................ 5
3 TL4242EVM-543 Top Copper (Viewed From Top)..................................................................... 5
4 TL4242EVM-543 Bottom Copper (Viewed From Bottom) ............................................................. 5
5 TL4242EVM-543 Maximum Vin vs LED Current ....................................................................... 7
6 TL4242EVM-543 Top Infrared at V
in
= 12 V, I
LED
= 357 mA (Viewed From Top) ................................... 7
List of Tables
1 Bill of Materials .............................................................................................................. 7
1
SLVU340–October 2009 TL4242EVM-543
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