This reference design details a highly integrated solution for driving LEDs in a CHMSL, which includes brake and reverse lights. Each light is capable of independent function by applying power to its supply line. The design uses three automotive-rated linear LED drivers (TPS92610-Q1) to obtain a low BOM count yet feature-rich solution. The design also includes protection features against load dump conditions and reverse battery conditions while simultaneously maintaining a small solution size.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Automotive Linear LED Driver Reference Design for Center High-Mounted Stop Lamp | Oct. 13, 2017 | |
| Technical article | CHMSL: The third brake light | PDF | HTML | Feb. 16, 2018 | |
| Application note | How to Calculate TPS92630-Q1 Maximum Output Current for Automotive Exterior Ligh | Dec. 22, 2015 |
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