This reference design showcases the TPS92682-Q1 dual-channel LED controller used in an automotive front lighting application with high beam (HB) and low beam (LB), daytime running light (DRL), and position (POS) light functionality. The design uses one TPS92682-Q1 device to implement a single-stage power solution to drive both the HB and LB channel, as well as the DRL and POS functionality with a controller area network (CAN) interface. This simple design reduces component count and solution size as traditional implementation uses two separate controllers. The TPS92682-Q1 device includes internal and external PWM dimming support for additional flexibility as well as built-in monitoring for fault detection and protection of the continuous LED current. Electromagnetic interference (EMI) filtering is included and designed to meet CISPR-25, Class 5 conduction requirements.
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 | 45-W,15-W Dual SEPIC LED Driver Reference Design for Automotive Lighting | Oct. 04, 2019 |
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