Multiple Channels of High Density LED Control for Automotive Headlight Applications
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
Description
This design, featuring the TMS320F2803x Piccolo microcontroller, implements a high efficiency multi-channel DC-DC LED control system for typically automotive lighting systems. The design support up to 6 channels of LED controls each with maximum of 1.2A current driving capabilities. With a two stage power topology of boost and buck, the system can be operated with a wide input DC voltage from 8V to 20V, which fits perfectly in automotive applications.
Features
- Up to 6 channels of high density DC-DC LED driving capability
- High overall efficiency of about 86% at stable maximum output
- Wide input operation voltage range from 8V to 20V
- Very low ripple current on each LED channel with +/- 1mA at constant output
- Controlled and monitored via CAN communication interface with pre-defined open protocol. Easy to adapt to various end users.
- Over voltage and over current protection. 45V load dump protection
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
Schematic/Block Diagram
Quickly understand overall system functionality.
Download Schematic
Design Guide
Get results faster with test and simulation data that's been verified.
Download Design Guide
Bill of Materials (BOM)
Find the complete list of components in this reference design.
Download BOM
TI Devices (8)
Order samples, get tools and find more information on the TI products in this reference design.
| Sample & Buy |
Design Kits & Evaluation Modules |
| LM5111 |
Dual 5A Compound Gate Driver |
Gate drivers |
Sample & Buy |
View Design Kits & Evaluation Modules |
| OPA4322 |
20MHz, Low Noise, 1.8V, RRIO, CMOS Operational Amplifier |
Operational amplifiers (op amps) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| SN65HVDA541-Q1 |
Automotive Catalog 5-V CAN Transceiver with Standby mode, I/O Level Shifting and Supply Optimization |
Interface |
Sample & Buy |
View Design Kits & Evaluation Modules |
| TL431 |
Adjustable precision shunt regulator |
Voltage references |
Sample & Buy |
Not Available |
| TMS320F28032 |
Piccolo™ 32-bit MCU with 60 MHz, 64 KB Flash |
C2000 real-time control MCUs |
Not Available |
View Design Kits & Evaluation Modules |
| TPIC1021 |
Automotive Catalog LIN Physical Interface |
Interface |
Not Available |
Not Available |
| UCC27201 |
120V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver |
Gate drivers |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC2813-3-Q1 |
Automotive 3.6V to 12V, 1A BiCMOS Current Mode PWM Controller |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
Not Available |
CAD/CAE symbols
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
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 http://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.
Technical Documents
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
User guides (1)
| Title | Abstract | Type | Size (KB) | Date |
| | | PDF | 3763 |
12 Jan 2015
|
Design files (3)
| | | ZIP | 260 |
15 Jan 2015
|
| | | PDF | 77 |
15 Jan 2015
|
| | | PDF | 2826 |
15 Jan 2015
|
Related Tools & Software
Support & training
Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.
Search answers from TI experts
Content is provided 'AS IS' by the respective 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 visit our Support page.
Worldwide (In English)
