Block Diagram

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Design Considerations

Lighting: General

Schematic Block Diagram for Led Lighting Systems

What's new?

LED lighting via Power Line Communication
Microcontrollers with communication, control, and dimming capabilities

Microcontrollers with communication, control, and dimming capabilities

LED lighting designers are challenged with meeting their efficiency and reliability goals faster in advanced LED lighting designs. LED lighting customers seeking the latest in innovative and affordable LED lighting solutions can benefit from TI's broad product portfolio of LED drivers, AC/DC, DC/DC, power management devices, wireless and wired interface control and embedded processors. LED designers have the option of not only controlling the power stage, but regulating LED currents as well, eliminating the need for multiple components and reducing system cost.

Applications Processor: There are numerous advantages of using TI Microcontrollers in lighting: control of up to 8 independent LED strings, advanced power algorithms, and the additional flexibility in design and manufacturing for regional products. TI's Piccolo F28x controller platform provides a cost-effective means to implement PLC technology. Along with advanced DSP cores, the controllers integrate robust peripherals such as analog-to-digital converters (ADCs), timers and pulse-width-modulation (PWM). F28x controllers offer a unique combination of 150 MIPS of 32-bit control-optimized performance, system integration and microcontroller (MCU) like ease-of-use.
Interface: Lighting can be controlled via wireless in both the 2.4GHz and sub-1 GHz range. Communication methods that are supported include: ZigBee, 802.15.4, DALI over SimpliciTI, and 6loWPAN, as well as proprietary solutions. Supported wired solutions include RS-485 and DMX512, KNX, and DALI via Power Line Communication
Power Management: The general lighting application determines the LED string architecture (total LED strings, quantity of LED's per string and current in each string) and the total power required from the LED driver. This will determine the power architecture, required power factor and topology implemented in the LED driver. For low power, single string applications application like retrofit bulbs, down lighters and residential luminaires a single stage AC-DC driver is a good solution. TI has the necessary LED Lighting Driver Controllers for these applications. For multiple LED string (higher lumens) applications like troffers, mid-bay, high-bay, area and street lights TI has solutions that can produce intermediate constant voltage plus DC-DC converters for each string or solutions that can drive multiples strings with a single control current. TI products for multi-string applications include a variety of LED Lighting Driver Controllers for the AC front end conversion and TI's DC-DC controller and SWIFT™ family of synchronous, step-down DC/DC converters for the DC-DC LED constant current conversion.
Low-Power RF: TI solutions address the issue of lighting communications and control without expensive re-wiring. The Chipcon line of products covers the spectrum of needs, ranging from transceivers to complete System on chip (SoC) solutions, for most wireless lighting applications.

www.ti.com/led

Application Notes (44)

Title	Abstract	Type	Size (KB)	Date	Views
AN-2090 LM3448 -120VAC, 6W Isolated Flyback LED Driver (Rev. C)	Read Abstract	HTM	8 KB	01 May 2013	1468
Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (Rev. A)	Read Abstract	HTM	8 KB	01 May 2013	842
AN-1853 COT Drivers Control LED Ripple Current (Rev. A)	Read Abstract	HTM	8 KB	01 May 2013	1042
AN-2034 LM3445 -120VAC, 8W Isolated Flyback LED Driver (Rev. C)	Read Abstract	HTM	8 KB	01 May 2013	1409
AN-2082 LM3444 -120VAC, 8W Isolated Flyback LED Driver (Rev. E)	Read Abstract	HTM	8 KB	01 May 2013	1061
AN-2097 LM3444 - 230VAC, 8W Isolated Flyback LED Driver (Rev. F)	Read Abstract	HTM	8 KB	01 May 2013	1424
AN-2102 LM3464 and LM5021 DHC 25W Reference Designs (Rev. A)	Read Abstract	HTM	8 KB	01 May 2013	1216
Switched Cap Circuits Provide Efficient and Functional White LED Drive (Rev. B)	Read Abstract	HTM	8 KB	30 Apr 2013	584
AN-1293 Driving RGB LED Using LP3936 Lighting Management System (Rev. A)	Read Abstract	HTM	8 KB	30 Apr 2013	616
Analysis & Design of Hysteretic Constant Freq Buck Regr Using the LM5007 (Rev. B)	Read Abstract	HTM	8 KB	30 Apr 2013	711
LM27961- Dual-Display White LED Drvr w/3/2x Switched Cap Boost (Rev. A)	Read Abstract	HTM	8 KB	30 Apr 2013	503
Design & Program Examples for Lighting MGMT Unit LP5526 (Rev. A)	Read Abstract	HTM	8 KB	30 Apr 2013	406
AN-1523 LP5521 Power Efficiency Considerations (Rev. C)	Read Abstract	HTM	8 KB	30 Apr 2013	487
AN-1562 LP5521 Programming Considerations (Rev. A)	Read Abstract	HTM	8 KB	30 Apr 2013	499
LM27965 Dual Display White LED Driver w/I2C Compatible Brightness Control (Rev. B)	Read Abstract	HTM	8 KB	30 Apr 2013	760
AN-1715 LP3943/LP3944 as a GPIO Expander (Rev. A)	Read Abstract	HTM	8 KB	30 Apr 2013	538
Designing Energy-Efficient Handheld Illum Solutions (Rev. A)	Read Abstract	HTM	8 KB	30 Apr 2013	354
LM2755 Charge Pump LED Controller with I2C Compatible Interface in SMD (Rev. A)	Read Abstract	HTM	8 KB	30 Apr 2013	922
LM2756 Multi-Display Inductorless LED Driver w/32 Exp Dimming Steps in SMD (Rev. A)	Read Abstract	HTM	8 KB	30 Apr 2013	757
LM3553 1.2A Dual Flash LED Driver System with I2C Compatible Interface (Rev. B)	Read Abstract	HTM	8 KB	30 Apr 2013	864
AN-1658 LM2735 BOOST and SEPIC DC-DC Regulator (Rev. A)	Read Abstract	HTM	8 KB	23 Apr 2013	803
AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A)	Read Abstract	HTM	8 KB	23 Apr 2013	1502
AN-1291 Driving RGB LEDs Using LP3933 Lighting Management System (Rev. A)	Read Abstract	HTM	8 KB	17 Apr 2013	586
AN-2069 LM3445 - 230VAC, 6W- 15W Isolated Flyback LED Driver (Rev. B)	Read Abstract	HTM	8 KB	23 Nov 2010	1571
Dimming Techniques for Switched-Mode LED Drivers	Read Abstract	HTM	8 KB	30 Jul 2009	4975
MSP430 Interface to TPS60250 via I2C Master Software	Read Abstract	HTM	9 KB	01 May 2008	1126
AN-1696 Designing a Boost LED Driver Using the LM5022 (Rev. A)	Read Abstract	HTM	8 KB	22 Feb 2008	718
Programming Fun Lights With TI's TCA6507	Read Abstract	HTM	8 KB	30 Nov 2007	1513
AN-1656 Design Challenges of Switching LED Drivers	Read Abstract	HTM	8 KB	18 Oct 2007	2293
Driving a WLED does not always require 4 V		PDF	134 KB	12 Oct 2007	710
AN-1679 LED Backlighting Solution with LM3430 and LM3432	Read Abstract	HTM	8 KB	18 Sep 2007	811
Color-Management LED Drivers Have a Bright Future	Read Abstract	HTM	8 KB	20 Jun 2007	322
Optimizing Efficiency in White LED Backlight Applications	Read Abstract	HTM	8 KB	21 Mar 2007	441
Driving LEDs: To Cap or Not to Cap	Read Abstract	HTM	8 KB	21 Mar 2007	914
White Light LED Driver With Gradual Dimming (Rev. A)	Read Abstract	HTM	8 KB	10 Jan 2007	840
TLC5940 PWM dimming provides superior color quality in LED video displays		PDF	215 KB	18 Apr 2006	1228
TPS60230 WLED Charge Pump	Read Abstract	HTM	8 KB	09 Nov 2005	364
AN-460 LM34/LM35 Precision Monolithic Temperature Sensors (Rev. B)	Read Abstract	HTM	8 KB	14 May 2004	5374
Inductive Based Switch Reg Circuits Provide High Efficiency White LED Drives (Rev. A)	Read Abstract	HTM	8 KB	10 May 2004	619
LM143 Monolithic High Voltage Operational Amplifier Applications	Read Abstract	HTM	8 KB	02 May 2004	2369
Single Cell TPS61041 LED Driver	Read Abstract	HTM	8 KB	09 Jun 2003	539
Switched Capacitor Circuits Provide Efficient and Functional White-LED Drive	Read Abstract	HTM	8 KB	06 Mar 2003	435
Simple Voltmeter Monitors TTL Supplies	Read Abstract	HTM	8 KB	02 Oct 2002	1103
Inductive-Based Switch Reg Circuits Provide High-Efficiency White-LED Drvs	Read Abstract	HTM	8 KB	29 Apr 2002	435

User Guides (84)

Title	Abstract	Type	Size (KB)	Date	Views
AN-2182 LM3466 Demonstration Board Reference Design (Rev. A)	Read Abstract	htm	9 KB	01 May 2013	1140
AN-1500 LM3402/02HV Demo Board (Rev. C)	Read Abstract	htm	8 KB	01 May 2013	965
AN-1585 LM3402 and LM3404 High Power PSOP-8 Evaluation Board (Rev. C)	Read Abstract	htm	9 KB	01 May 2013	1377
AN-1590 LM3405 Demo Board (Rev. A)	Read Abstract	htm	9 KB	01 May 2013	867
AN-1657 LM3401 Demo Board (Rev. C)	Read Abstract	htm	9 KB	01 May 2013	1732
AN-1685 LM3405A Demo Board (Rev. B)	Read Abstract	htm	8 KB	01 May 2013	923
AN-1750 LM3406 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	01 May 2013	2058
AN-1773 LM3410X LED Driver 5-Pin SOT-23 Demo Board (Rev. A)	Read Abstract	htm	8 KB	01 May 2013	1271
AN-1774 LM3410X LED Driver 6-Pin LLP Demo Board (Rev. B)	Read Abstract	htm	8 KB	01 May 2013	1226
AN-1775 LM3410X SEPIC 6-Pin LLP Demo Board (Rev. C)	Read Abstract	htm	8 KB	01 May 2013	1211
LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board (Rev. E)	Read Abstract	htm	8 KB	01 May 2013	1488
AN-1899 LM3405A eMSOP Evaluation Board (Rev. B)	Read Abstract	htm	8 KB	01 May 2013	849
AN-1907 LM3423 Buck-Boost Configuration Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	01 May 2013	805
AN-1935 LM3445 Off-Line TRIAC Dimmer LED Driver Demo Board (Rev. I)	Read Abstract	htm	8 KB	01 May 2013	1385
AN-1953 LM3409HV Evaluation Board (Rev. D)	Read Abstract	htm	8 KB	01 May 2013	2302
AN-1954 LM3409 Demonstration Board (Rev. D)	Read Abstract	htm	8 KB	01 May 2013	2252
AN-1978 LM3445 120VAC Small Evaluation Board (Rev. G)	Read Abstract	htm	8 KB	01 May 2013	1217
AN-1993 LM3406HV Evaluation Board with 2 Wire Dimming (Rev. B)	Read Abstract	htm	8 KB	01 May 2013	1068
AN-1995 LM3445 208-277V AC Non-Isolated Evaluation PCB (Rev. B)	Read Abstract	htm	8 KB	01 May 2013	1070
AN-1996 LM3410X 190mA, LED Driver 6-Pin LLP Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	01 May 2013	1120
AN-2056 LM3492 Evaluation Board Reference Design (Rev. B)		pdf	891 KB	01 May 2013	1168
AN-2061 LM3445 A19 Edison Retrofit Evaluation Board (Rev. C)	Read Abstract	htm	8 KB	01 May 2013	1462
AN-2083 LM3444 A19 Edison Retrofit Evaluation Board (Rev. C)	Read Abstract	htm	8 KB	01 May 2013	1082
AN-1278 LM2793 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	581
AN-1309 LM3500 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	644
AN-1318 LM3501 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	635
AN-1321 LM2796 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	631
AN-1344 LP3944 Evaluation Kit (Rev. B)	Read Abstract	htm	8 KB	30 Apr 2013	621
AN-1406 LM3519 Evaluation Board (Rev. A)	Read Abstract	htm	9 KB	30 Apr 2013	625
AN-1407 AN-1407 LM3502/03 Evaluation Board (Rev. A)	Read Abstract	htm	9 KB	30 Apr 2013	457
AN-1495 LM3552 White LED Flash Driver Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	772
AN-1502 LP5526 Evaluation Kit (Rev. B)	Read Abstract	htm	8 KB	30 Apr 2013	480
AN-1546 LM2754 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	460
AN-1594 LM3509 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	672
AN-1631 LP55281 Evaluation Kit (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	594
AN-1632 LP5521TM Evaluation Kit (Rev. D)	Read Abstract	htm	8 KB	30 Apr 2013	612
AN-1636 LP5522 Evaluation Kit (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	314
AN-1695 LM2758 Flash LED Driver Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	769
AN-1702 LP5524 Evaluation Kit (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	503
AN-1772 LM3691 Evaluation Board (Rev. B)	Read Abstract	htm	8 KB	30 Apr 2013	782
AN-1823 LM3528 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	768
AN-2057 LM3559/LM3560 Evaluation Board (Rev. A)	Read Abstract	htm	9 KB	30 Apr 2013	874
AN-2062 LM3549 Evaluation Kit (Rev. A)	Read Abstract	htm	8 KB	30 Apr 2013	419
AN-1277 LM2703/LM2704 Evaluation Board (Rev. A)		pdf	30 KB	29 Apr 2013	814
AN-1394 LM3224 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	26 Apr 2013	649
AN-1392 LM3485 LED Demo Board (Rev. B)	Read Abstract	htm	8 KB	25 Apr 2013	1376
AN-1668 LM2735Y 8-Pin eMSOP Demo Board (Rev. B)	Read Abstract	htm	8 KB	25 Apr 2013	946
AN-1659 LM2735X SEPIC 6-Pin LLP Demo Board (Rev. A)	Read Abstract	htm	8 KB	24 Apr 2013	405
AN-1660 LM2735Y 6-Pin LLP Demo Board (Rev. A)	Read Abstract	htm	8 KB	24 Apr 2013	394
AN-1664 LM2735X 5-Pin SOT23 Demo Board (Rev. B)	Read Abstract	htm	8 KB	24 Apr 2013	1041
AN-1665 LM2735Y 5-Pin SOT23 Demo Board (Rev. B)	Read Abstract	htm	8 KB	24 Apr 2013	929
AN-1666 LM2735X 6-Pin LLP Demo Board (Rev. A)	Read Abstract	htm	8 KB	24 Apr 2013	369
AN-1667 LM2735X 8-Pin eMSOP Demo Board (Rev. A)	Read Abstract	htm	8 KB	24 Apr 2013	394
AN-1290 LM3595 Evaluation Board (Rev. B)	Read Abstract	htm	8 KB	17 Apr 2013	336
AN-1296 LP3945/LP3946 Evaluation Kit (Rev. D)	Read Abstract	htm	8 KB	17 Apr 2013	367
AN-1306 LM3590 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	17 Apr 2013	356
AN-1324 LM3570 - Low Noise White LED Driver System (Rev. A)	Read Abstract	htm	8 KB	17 Apr 2013	414
AN-2127 LM3448 A19 Edison Retrofit Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	08 Nov 2011	1047
AN-2091 LM3448 - 230VAC, 6W Isolated Flyback LED Driver (Rev. B)		pdf	14.93 MB	08 Nov 2011	2164
AN-2196 LM3435 Evaluation Board	Read Abstract	htm	8 KB	04 Oct 2011	730
AN-2150 LM3450A Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	21 Jun 2011	1723
AN-2071 LM3464A 4 Channel LED Driver Evaluation Board (Rev. C)	Read Abstract	htm	8 KB	03 Jun 2011	1264
AN-2119 LM8850 Evaluation Board AN-	Read Abstract	htm	8 KB	30 Mar 2011	681
AN-2010 LM3423 Buck-Boost 2 Layer Evaluation Board (Rev. B)	Read Abstract	htm	8 KB	07 Mar 2011	1393
LM3421 SEPIC LED Driver Evaluation Board for Automotive Applications (Rev. A)	Read Abstract	htm	8 KB	04 Feb 2011	1421
AN-2098 LM3450 Evaluation Board	Read Abstract	htm	8 KB	17 Nov 2010	1008
AN-2011 LM3423 Boost 2 Layer Evaluation Board	Read Abstract	htm	8 KB	23 Sep 2010	1157
AN-2076 LM3414HV 1A 65V LED Driver Evaluation Board (Rev. B)	Read Abstract	htm	8 KB	10 Aug 2010	1898
AN-2041 LM3434 20A Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	03 May 2010	1067
AN-1937 LM3433 10A to 40A LED Driver Evaluation Board (Rev. C)	Read Abstract	htm	8 KB	14 Jan 2010	1103
AN-1969 LM3424 Boost Evaluation Board	Read Abstract	htm	8 KB	21 Aug 2009	1382
AN-1967 LM3424 Buck-Boost Evaluation Board	Read Abstract	htm	8 KB	21 Aug 2009	1329
AN-1976 LM5027 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	19 Aug 2009	820
AN-1985 LM3429 Buck-Boost Evaluation Board (Rev. B)	Read Abstract	htm	8 KB	03 Aug 2009	1667
AN-1986 LM3429 Boost Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	03 Aug 2009	1496
AN-1763 LM3407 Evaluation Board Reference Design (Rev. A)	Read Abstract	htm	8 KB	21 Jan 2009	1020
AN-1872 LM3423 Boost Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	08 Dec 2008	712
AN-1793 LM3433 4A to 20A LED Driver Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	25 Aug 2008	1152
AN-1736 LM3433 HB LED Driver Evaluation Kit (Rev. B)	Read Abstract	htm	8 KB	04 Feb 2008	637
AN-1764 LM3431 Evaluation Board	Read Abstract	htm	8 KB	10 Jan 2008	838
AN-1529 LM3430 Evaluation Board (Rev. B)	Read Abstract	htm	8 KB	21 Aug 2007	715
AN-1593 LM3508 Evaluation Board	Read Abstract	htm	8 KB	04 Jun 2007	614
AN-1314 LM5020 Evaluation Board (Rev. A)	Read Abstract	htm	8 KB	10 Feb 2005	1309
AN-1305 LM5030 Evaluation Board	Read Abstract	htm	8 KB	02 May 2004	1242

Reference Designs

Description	Part #	Company
Boost (30V@0.7A) for Truck Lighting	PMP4687	Texas Instruments
CC2430-CC2591EM Reference Design	CC2430-CC2591EM_RD	Texas Instruments
PFC/Flyback for LED Lighting - 59V@2.5A	PMP4636	Texas Instruments
SEPIC (9.6V@700mA) for Lighting Applications	PMP5541	Texas Instruments

Selection and Solution Guides

Selection Guides (3)

Title	Type	Size (KB)	Date	Views
Power Management Guide 2013 (Rev. M)	PDF	8.94 MB	11 Mar 2013	28115
LED Lighting Reference Design Cookbook II	PDF	10.98 MB	11 Oct 2011	9461
LED Reference Design Cookbook (Rev. A)	PDF	6.52 MB	05 May 2010	3735

Tools and Software

Name	Part #	Company	Software/Tool Type
C2000 DC/DC Developer's Kit	TMDSDCDC8KIT	Texas Instruments	Evaluation Modules & Boards
C2000 Piccolo MCU AC LED Lighting & Communications Kit	TMDSIACLEDCOMKIT	Texas Instruments	Evaluation Modules & Boards
C2000 Power Line Communications Add-on Kit	TMDSPLCMODA-P3X	Texas Instruments	Evaluation Modules & Boards
C2000 Power Line Modem Developer's Kit	TMDSPLCKIT-V3	Texas Instruments	Evaluation Modules & Boards
Code Composer Studio (CCStudio) Integrated Development Environment (IDE) v5	CCSTUDIO	Texas Instruments	SW Development Tools, IDEs, Compilers
TPS62260LED-338 Evaluation Module	TPS62260LED-338	Texas Instruments	Evaluation Modules & Boards

Product Bulletin & White Papers

Product Bulletin (1)

Title	Abstract	Type	Size (MB)	Date	Views
Microcontroller Devices for Advanced Lighting Solutions (Rev. B)		PDF	196 KB	18 May 2012	4613

White Papers (6)

Title	Type	Size (MB)	Date	Views
LED intelligent lighting control with ultra-low-power MSP430F51x2 family	PDF	165 KB	13 Nov 2012	1839
Bringing Intelligence to LED Lighting Applications	PDF	980 KB	14 Aug 2012	643
Developing robust power line communications (PLC) with G3	PDF	2.01 MB	31 May 2012	2730
Blinky: LED driver makes simple IDE DMA detector	PDF	138 KB	01 Aug 2002	495
Cell Phones as Fashion Create New Design Challenges	PDF	102 KB	01 Jan 2002	578
Conserve Power With Simple LED Flasher	PDF	93 KB	01 Nov 2001	643

News Releases & Authored Articles

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Support and Community

Training & Events

Name	Type	Available During
Digital LED Lighting Control	Recorded Content	On Demand
Getting Started with the TIVA™ C Series TM4C123G LaunchPad	In-Person	21 May 2013
Save Energy with LED Lighting and Intelligent Sensing	Recorded Content	On Demand
Getting Started with the TIVA™ C Series TM4C123G LaunchPad	In-Person	16 Jul 2013
Getting Started with the TIVA™ C Series TM4C123G LaunchPad	In-Person	17 Sep 2013

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Lighting: General

Block Diagram

Design Considerations

Lighting: General

Schematic Block Diagram for Led Lighting Systems

Application Notes (44)

User Guides (84)

Reference Designs

Selection and Solution Guides

Selection Guides (3)

Tools and Software

Product Bulletin & White Papers

Product Bulletin (1)

White Papers (6)

News Releases & Authored Articles

Similar End-Equipment Solutions

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