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TIDM-AUTO-DC-LED-LIGHTING
Multiple Channels of High Density LED Control for Automotive Headlight Applications
TIDM-AUTO-DC-LED-LIGHTING
Overview
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
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDU695.PDF (3763 K)
Reference design overview and verified performance test data
TIDRCL3.PDF (2826 K)
Detailed schematic diagram for design layout and components
TIDRCL4.PDF (77 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDC875.ZIP (260 K)
Design file that contains information on physical board layer of design PCB
Products
Includes TI products in the design and potential alternatives.
AC/DC & DC/DC controllers (external FET)
UCC2813-3-Q1 — Automotive economy single ended 1MHz current mode PWM controller with 4.1V/3.6V UVLO 100% duty cycle
Data sheet: PDF | HTMLC2000 real-time microcontrollers
TMS320F28032 — C2000™ 32-bit MCU with 60 MHz, 64 KB flash, 4.6 MSPS ADC
Data sheet: PDF | HTMLC2000 real-time microcontrollers
TMS320F28032-Q1 — Automotive C2000™ 32-bit MCU with 60 MHz, 64 KB flash, 4.6 MSPS ADC
Data sheet: PDF | HTMLCAN transceivers
SN65HVDA541-Q1 — Automotive Catalog 5-V CAN Transceiver with Standby mode, I/O Level Shifting and Supply Optimization
Data sheet: PDF | HTMLStart development
Technical documentation
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View all 2
| Type | Title | Date | ||
|---|---|---|---|---|
| Technical article | Shining a light on op amps: considerations in LED lighting | PDF | HTML | Oct. 20, 2016 | |
| Design guide | Multiple Channels of High Density LED Ctrl for Auto Headlight Apps Design Guide | Jan. 12, 2015 |
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