Software
Firmware
TIDA-01415
100-W, High-Resolution, 16-bit Color-Tunable, 0.15% Dimmable RGBW LED Luminaire Reference Design
TIDA-01415
Overview
This reference design demonstrates the finest range of color control of individual RGBW LED strings with > 16 bits of PWM resolution while supporting the PWM modulation frequencies as high as 30 and 50 kHz. This reference design demonstrates the finest range of individual RGBW LED strings color control and enables development of highly efficient DC-DC LED luminaires capable of wide color gamut generation with trillions of colors while at the same time being imperceptible to high-end cameras and video broadcast equipment.
Features
- Four buck current controllers driving RGBW LED strings at 30V and string current of up to 0.75A (also tested up to 1.25A)
- LED buck current controllers efficiency exceeding 96% at full load with maximum operating frequency up-to 600 kHz
- 100% to 0.2% Contrast setting for PWM dimming method at 30 and 50 kHz
- 100% to 0.15% Contrast setting and better Linearity for Shunt dimming mode at 30 and 50 kHz
- High-resolution PWM feature of C2000™ with 180-ps step enables current adjustment with resolution > 16 bits for both PWM and Shunt FET methods even at 50kHz dimming frequency
- 4Ch, 12bit DAC used for IADJ setting of individual LED strings to enable analog dimming
Industrial
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.
TIDUCX9.PDF (7908 K)
Reference design overview and verified performance test data
TIDRR70.PDF (615 K)
Detailed schematic diagram for design layout and components
TIDRR71.PDF (102 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRR72.PDF (375 K)
Detailed overview of design layout for component placement
TIDRR74.ZIP (2371 K)
Files used for 3D models or 2D drawings of IC components
TIDCDH7.ZIP (336 K)
Design file that contains information on physical board layer of design PCB
TIDRR73.PDF (1781 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
C2000 real-time microcontrollers
TMS320F28027 — C2000™ 32-bit MCU with 60 MHz, 64 KB flash
Data sheet: PDFC2000 real-time microcontrollers
TMS320F28027-Q1 — Automotive C2000™ 32-bit MCU with 60 MHz, 64 KB flash
Data sheet: PDFMOSFETs
CSD19538Q2 — 100-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 59 mOhm
Data sheet: PDF | HTMLStart development
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | 100-W, High-Res 16-bit Color-Tunable, 0.15% Dimmable RGBW LED Driver Ref Design | Jun. 06, 2017 |
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