This reference design describes a TPS92692-Q1 LED driver in a dual, high-beam and low-beam application with a single controller and power stage. The design operates in boost mode to provide the high beam and in boost to battery mode to provide the low beam. The single controller power stage design results in a simpler and more cost-effective lighting system. Additional design flexibility of the TPS92692 device includes analog and PWM dimming support as well as built-in monitoring for fault detection and protection of the continuous LED current. EMI filtering is included and designed to meet CISPR-25, Class 5 conduction requirements.
| Output voltage options | TIDA-050002.1 | TIDA-050002.2 |
|---|---|---|
| Vin (Min) (V) | 8 | 8 |
| Vin (Max) (V) | 16 | 16 |
| Vout (Nom) (V) | 4 | 44 |
| Iout (Max) (A) | 1.25 | 1.25 |
| Output Power (W) | 5 | 55 |
| Isolated/Non-Isolated | Non-Isolated | Non-Isolated |
| Input Type | DC | DC |
| Topology | Buck Boost- Non Sync | Buck Boost- Non Sync |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
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
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 | 55W Dual Buck-Boost LED Driver Ref Design for Automotive Headlight High/Low Beam | May 17, 2018 |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.