Lighting Solution from TI july 2010 Olivier Mellin Europe solution marketing.
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Transcript of Lighting Solution from TI july 2010 Olivier Mellin Europe solution marketing.
December 16th, 2009 TI - Lighting Power Products 4
Main Block Diagram
For more info:
Controller
MSP430F2xxxPresence/luminosity sensing
Pre-failure detection
Aging compensation
Dimming scheduler
AD
CM
etrologyP
WM
Constant Current
AC/DC
LED driverTLC59xx
TPS61xxx/TPS62xxx/TPS402xx
PiccoloA-B / MSP430F51x2 NextFET
~220V
Power Amplifier
RS485
LVDS…
Communication&Control
MSP430F2xxx, CC430, CC1xxx, CC2530Presence/luminosity sensing
Pre-failure detection
Aging compensation
Dimming scheduler
Metrology (MSP430 FE)
Wireless : SimpliciTI, Zigbee, 6LowPan, W-DMX, W-KNX
Wired: DMX512, Dali/DSI, KNX, 0-10V
Communication&Control
F2802x/F2803x
Presence/luminosity sensing
Pre-failure detection
Aging compensation
Dimming scheduler
Metrology (MSP430 FE)
PLC: cenelec B SFSK 2400kbps
AC/DC DC/DC regulation
PGA112 + OPA564
ESP – home/sales presentations/search for “LED” or “light”
Internal : Infolink/LEDRoom Internal/External: www.ti.com/LED
TPS92010, TPS92210
UCC28810
AC/DC
Constant Voltage:
designs database
December 16th, 2009 TI - Lighting Power Products 6
600+ LED designs / EVMs and namely:Description Parts
Vin RangeVAC
Vout (DC) Range
# of LEDs
Iout MaxPout (max)
Eff.PFC
ISO
Dim InDim Out
Status(1)
RESIDENTIAL
TPS92010 EVM - High Performance dimming and High Efficiency Offline LED lighting driver
TPS92010 TL431 LM358
100 180
130 265
9 18 3 to 5 325mA 7W 80% N Y TRIAC LinearEVM
June’10
TPS92210 EVM - High Efficiency, PFC and TRIAC dimmable LED lighting driver
TPS92210 90180
130265
32 40 9 to 11 350mA 12.5W 85% Y Y TRIAC LinearEVM
June ’10
TPS92001 Low cost TRIAC dimmable LED lighting driver:
TPS92001 TL331
108 132 22 32 5 to 9 350mA 11W 77% 0.8 N TRIACPWM 120Hz
Board
OUTDOOR / PROFESSIONAL
PMP4501 UCC28810UCC28810
TL103180 264 10 48 700mA 33.6 88% 0.9 Y No No Board
UCC28810 EVM002 100W LED lighting Driver
UCC28810 UCC28811
90 265 55 100 15-30 900mA 100W 93% Y N PWM PWM EVM
UCC28810 EVM003 100W SIMPLEDrive Multi-string LED driver
UCC28810 UCC28811 UCC25600
90 265 22 604X
(7-15)500mA 100W 91% Y Y PWM PWM EVM
DC/DC
TPS54160 EVM535 TPS54160 18 30 14.8 4 700mA 10W 90% - N
PWM or
Analog
PWM or
LinearEVM
TPS61500EVM-369 TPS61500 2.9 18 15 4 500mA 7W 94% - N PWM PWM EVM
TPS40211 EVM352 Boost Current Regulator for LED Drive
TPS40211 8 18 20 35 6 to 10 700mA 25W 94% - N PWM PWM EVM
December 16th, 2009 TI - Lighting Power Products 7
LED General Illumination Applications
LED Lighting
Residential < 25W or 3,000 lm
Commercial15W – 75W or
1000 lm - 10000 lm
Outdoor and Infrastructure35W – 250W
2500 lm - 30,000 lm
Low Cost, TRIAC Dimming, PFC, High Efficiency, Color Quality, Safety, Long Life
PFC, High Efficiency,Dimming, Early Payback,
Color Quality, Safety, Maintenance, Eco-friendly
PFC, High Efficiency,Early Payback, High Brightness, Safety,
Maintenance, Eco-friendly
TI - Lighting Power Products 8
Residential
Description Parts Vin RangeVAC
Vout (DC) Range
# of LEDs Iout Max Pout
(max) Eff.PFC
ISO
Dim In Dim Out
Status(1)
RESIDENTIAL
TPS92010 EVM - High Performance dimming and High Efficiency Offline LED lighting driver
TPS92010 TL431 LM358
100 180
130 265 9 18 3 to 5 325mA 7W 80% N Y TRIAC Linear EVM
June’10
TPS92210 EVM - High Efficiency, PFC and TRIAC dimmable LED lighting driver
TPS92210 90180
130265 32 40 9 to 11 350mA 12.5W 85% Y Y TRIAC Linear EVM
June ’10
TPS92001 Low cost TRIAC dimmable LED lighting driver:
TPS92001 TL331
108 132 22 32 5 to 9 350mA 11W 77% 0.8 N TRIACPWM 120Hz
Board
December 16th, 2009 TI - Lighting Power Products 99
The Trouble with TRIACs
• Start of AC cycle TRIAC initially off– C1 charges through R1 and light bulb
• When voltage on C1 exceeds DIAC threshold voltage the TRIAC conducts– R1 controls when TRIAC turns ON, dimming function
• Light bulb load must maintain TRIAC holding current– TRIAC turns off close to zero crossing and cycle repeats
• LED lights do not always consume enough power to keep TRIAC ON– Need to solve this with extra circuitry
Special care is required when making LED lighting compatible to standard TRIAC dimmers
LightBulb
R1 C1
TRIAC
Wall dimmer
AC Input
Dimmer Output
L
N
DIAC
December 16th, 2009 TI - Lighting Power Products 1010
Low Power Light Bulb Replacement Cost/Performance Matrix
Solution Power Safety
Output Ripple Current
Power
Factor
TRIAC Dimming
TPS92210EVM 15W Isolated 0.99 Standard
TPS92010EVM 6W Isolated DC 0.55 Lossless
PMP4981
(TPS92001)
6W- 11W Non-Isolated 100% - 120Hz 0.72 Standard
Per
form
ance
/C
ost
Features
TI - Lighting Power Products 11
• 120V and 230V input designs
• Tightly Regulated LED current
• Compatible with standard TRIAC Dimmers
• Active holding-current feature
• High Efficiency– Maintained during dimming
TPS92010EVM 7Watt LED Lighting Driver
TI - Lighting Power Products 12
TPS92010EVM Specification
Specification Value Unit
LED configuration 3-5 Ser.
Input Voltage 90 – 132180 - 264
VAC
Efficiency 80 TYP %
Power 7 W
Power Factor 0.55
Output Voltage 9 - 18 VDC
Output Current 325 mA
LF Output Ripple 0 mVpp
Isolation Yes
Specification Value Unit
Dimming Input Triac
Dimming Level 0-100 %
Current Sensing Res.
Current Ref Accuracy 3 %
Temp. Range -20 to 50 oC
Lifetime* 35000 Hrs
Turn on time 150 mS
EMC Regulation FCC B
Safety Regulation No
Driver Dimensions 60 X 20 mm
Note: *Lifetime assumes 35oC internal temp. rise from ambient.
TI - Lighting Power Products 13
TPS92010EVM Schematic
Dimmer Trigger Circuit
Input Filter
LED Current Control
Set Point Generation
Power Stage
Control
A
Flyback Power Stage
CBULK
FEEDBACK
RCS
RPL
TL431
2
1
6
SS
VDD
4 GND 5GD
FB
8
3 PCS
7VCS
LPM
UCL64010
PRIMARY SECONDARY
CBULK
RCS
+
-
+
-
TPS92010
TI - Lighting Power Products 14
Outdoor / ProfessionalDescription Parts Vin Range
VACVout (DC)
Range# of
LEDsIout Max
Pout (max) Eff.
PFC
ISO
Dim In Dim Out
Status(1)
OUTDOOR / PROFESSIONAL
PMP4501 UCC28810UCC28810TL103
180
264 10 48 700mA 33.6 88% 0.9 Y No No Board
UCC28810 EVM002 100W LED lighting Driver
UCC28810
UCC28811
90 265 55 100 15-30 900mA 100W 93% Y N PWM PWM EVM
UCC28810 EVM003 100W SIMPLEDrive Multi-string LED driver
UCC28810
UCC28811
UCC25600
90 265 22 60 4X(7-15) 500mA 100W 91% Y Y PWM PWM EVM
December 16th, 2009 TI - Lighting Power Products 15
Outdoor / Professional
• 15W to 240W• PFC• High Efficiency• Dimming• Early Payback• Color Quality• Safety• Maintenance• Eco-friendly
December 16th, 2009 TI - Lighting Power Products 16
Buck Control
PFC Control
Bridge Rectifier and EMI Fileter
Q1
Q2
Lr
Lm
Cr
LLC Control
Buck Control
Buck Control
Buck Control
High Light Output Drivers Traditional Solution – Power Supply with PFC and Low Voltage DC output
LED Strings Driven with Multiple Buck Regulators
Traditional Implementation:
PFC Stage - Required in any implementationDC-DC Stage - Provides constant voltage and isolation stageMultiple Bucks - Provides constant current to each LED string
Benefit:• Allows for individual string dimmingDrawbacks: • Controller and MOSFET and Inductor required for each LED string • Decreased reliability due to many extra converters (N-1 compared to SIMPLEDrive)
Power Supply
December 16th, 2009 TI - Lighting Power Products 17
High Light Output Drivers – PFC + Buck + Multiple Strings
SIMPLEDrive: PFC + DC-DC + Multiple Buck stages
PFC Stage - Required in any implementationLow Side Buck - Provides constant LED Current and main controlSeries Transformers - Provides constant current to each LED string
Benefit:• One control section for all string currents, • Lower part count, higher reliability and lower costDrawback: • All strings will be dimmed simultaneously (if individual dimming is required)
PFCControl
BridgeRectifierand Input
Bridge
Q11
Q2
FixedPWMGateDrive
BuckControl
December 16th, 2009 TI - Lighting Power Products 18
UCC28810EVM-003 Specification
Specification Value Unit
LED configuration 4x 15
Input Voltage 90 to 264 VAC
Efficiency 90 %
Power 100 W
Power Factor 0.97
Output Voltage 54.5 VDC
Output Current 500 mA
LF Output Ripple 0 mVpp
Isolation Yes
Specification Value Unit
Dimming Input PWM
Dimming Level 10 to 100
%
Current Sensing Res
Temp. Range -20 to 40 oC
Lifetime* 40,000 Hrs
EMC Regulation No
Safety Regulation Yes**
Driver Dimensions 370 x 51 mm
Note: *Lifetime assumes 35oC internal temp. rise from ambient.** Designed with reinforced isolation to UL60950 but not certified
TI - Lighting Power Products 19
TI in LED lightingAC/DC solutionsDC/DC solutions
Description Parts Vin RangeVAC Vout (DC) Range # of
LEDs Iout Max Pout (max) Eff.PFC
ISO
Dim In Dim Out Status(1)
DC/DC
TPS54160 EVM535 TPS54160 18 30 14.8 4 700mA 10W 90% - NPWM
or Analog
PWM or
LinearEVM
TPS61500EVM-369 TPS61500 2.9 18 15 4 500mA 7W 94% - N PWM PWM EVM
TPS40211 EVM352 Boost Current Regulator for LED Drive TPS40211 8 18 20 35 6 to 10 700mA 25W 94% - N PWM PWM EVM
TI - Lighting Power Products 20
Main LED DRIVER types & families
Signage&Linear
Multichannel up to 150mA: TLC59xx
Text display: TLC592x, TLC5902xLEDs are ON or OFF, Vin
5,5V-17V, up to 24 ch, <50mA
Video display: TLC594x
PWM brightness dimming up to 65k steps, up to 24 ch,
<50mA
Architectural : TLC597x 3 channel 150mA+
Linear drop (LDO) TL4242Vin42V 500mA, no EMI,
cheap, simple but potentially hot
www.ti.com/LED
Switching controller
TPS402xx with External FET
(MSP430F5xxx, piccolo A/B)
TPS40200Buck Vin 52V max duty cycle 90% - flexibility
/Low cost
TPS40211/10Boost Vin 52V max duty
cycle 95% - flexibility /Low cost
Switching regulator (with integrated FET)
Boost TPS61165, TPS61500, TPS61195 … 18V Vin 1A+
BuckTPS54xxx
up to 5A 60Vin namely TPS54160 (100%Duty
cycle*)
TPS62260, TPS62110 17Vin 500mA+
TI - Lighting Power Products 21
21
Soft Start Enable function Externally compensated Low Isense threshold (150mV)
Supports Boost, Flyback, and SEPIC topologies
Prevents inrush current On/off control Design flexibility Enables use of small Isense resistors with
lower power dissipation Design and implementation flexibility
LED lighting systems
TPS402114.5 to 52V Input Current Mode Boost Controllers
Freq adj., 35KHz-1MHz
Soft Start prevents inrush
current; has time-out timer when in
OCP
ENABLE for on/off
control
External compensation for design
flexibility
VIN = 4.5V-52V; UVL
Provides current feedback in the
control loop; detects an OC based on 150mV threshold
Senses switch current and sets
OC threshold; low Isense
threshold enables use of small resistor, and lower power
dissipation
N-channel FET gate driver; 500mA drive
current
TP
S4
021
1
TI - Lighting Power Products 22
22
EVM/Tool
TPS541603.5 to 60V Input 1.5A DC/DC Converter - SWIFTTM
• Output Voltage Adjustable Down to 0.8V • Integrated 200 m High Side MOSFET• Pulse Skipping Eco-ModeTM with 116uA
Operating and 1.3uA Shutdown Current• 300 kHz to 2.5 MHz Switching Frequency• Synchronizes to External Clock• Adjustable Slow Start Time• PG, Enable, and Track Pin• Adjustable UVLO• Available in 10MSOP PowerPADTM Package
• Supports Low Output at 1% Initial Accuracy• High Efficiency at Full 1.5-A Load Current • High Efficiency under Light Load Conditions
Extends Battery Life and Saves Energy • Small Filter Size or Low Duty Cycle Support• Eliminates Beat Noise• Reduces Inrush Currents During Startup• Easily Implement Sequencing Schemes• Program Turn On Voltage Threshold• Small Packaging Saves Space
TPS54160EVM-535 Switcher-Pro Tool
• Aftermarket Automotive Accessories: Video, GPS, Entertainment
• 12V, 24V and 48V Industrial and Commercial Distributed Power Systems
TI - Lighting Power Products 23
23
TPS61500High Power White LED Driver with 3A Switch
TPS61500EVM-369
• 2.9V to 18V input voltage range • 3.0A current switch - integrated FET
• Four 3-W LEDs from 5-Vin• Eight 3-W LEDs from 12-Vin
• 200kHz to 2.2MHz switching frequency• Analog and PWM brightness dimming• User defined Soft-start• Up to 93% efficiency• 14-pin HTSSOP package
• High brightness LED lighting
• High power LED supply
Wide input supply range for 12-V or 15-V industrial power rails
Up to 1-A output current HTSSOP package for best thermal behavior
Analog brightness dimming Implementation
EVM/Tool
TI - Lighting Power Products 24
24
•Adjustable Current up to 500mA (+/-5%)•Wide Input Voltage Range – Up to 42V•LED Open Detection•Channel Over-Temperature Protection•Short Circuit Proof•Reverse Polarity Proof•Wide Operating Range: -40ºC to +150ºC•Current Programmable by Sense Resistor•QFN – 8 pin Power Package
• LED illumination and intensity control• General Lighting• Exterior: DRL, fog light, turn lamp, headlamp• Interior: vanity, map, courtesy
• Supply Voltage Independent constant current / brightness
• Programmable constant load current• Fault Reporting
GNDD
Ref
Q
ST
I
PWM
Battery
TL4242
TL4242500mA Constant Current Source with Open LED Detection
TL4242EVM-543
EVM/Tool
December 16th, 2009 TI - Lighting Power Products 26
www.ti.com/mculighting
MCU Benefits Applications
MSP430™ •Ultra-low power consumption •Integrated intelligent peripherals •Ease of use
Wireless Communications/Control (ZigBee, 6loWPAN, 802.15.4, SimpliciTI™, etc.) Wired communications/Control (DALI, DMX-512, KNX, etc.)
C2000™
•32-bit performance for real-time control •Lower system cost •Ease of use •Packaging and price for cost sensitive applications
Digital PowerPower line communications
Stellaris®•ARM® Cortex™-M3 •Advanced communications •Integrated Ethernet MAC and PHY
Ethernet ControlWired communications/Control(DALI, DMX-512, etc.)
December 16th, 2009 TI - Lighting Power Products 27
CommunicationSolutions/Protocol Product Tool/Kit/Demo/Platform For more information:
DALI MSP430™MCU
TPS62660LED-338 EVM For DALI app note: www.ti.com/daliappnote
DMX-512 MSP430 MCU / Stellaris® DMX-512 apps note / Third-party design
MSP430 - Demo code and reference design is available upon request at Technical Support.Stellaris - Available through third-party Golden IC Technology Co., Ltd. - [email protected]
Power line communication C2000™ MCUs TMDSPLCKIT - V2 To request information on this kit, please send inquiry to [email protected]
ZigBee® / 802.15.4 MSP430F54xxA MSP430F5438 Experimenter's Board www.ti.com/msp430f5438
KNX / KNX-RF MSP430 N/AAvailable through 3rd parties; for more information visit:Weinzierl Engineering GmbHTAPKO Technologies GmbH
6loWPAN CC430(MSP430 MCU + Low-Power RRF) Third-party design Available through Third-party Sensinode.
Ethernet Stellaris® Ethernet development and evaluation kits www.ti.com/stellariskits
General-use MCU(user interface, system supervisor, etc.) MSP430 MCU Development and
evaluation kits www.ti.com/msp430
TI - Lighting Power Products 28
Adding intelligence to LED systemsPower conversionControlCommunication
TI - Lighting Power Products 29
Pros&Cons of Advanced Functions
PRO
• Highly differentiating features to end customer
• Dynamically tweaking the efficiency depending on the load
• Making the most of LEDs:– Light when and where needed– Improving system lifetime– Improving energy efficiency
• Limited-to-no additional cost compared to LED cost / system cost– Piccolo A = 1 high power LED
CONS
• Increased system complexity ?
• Reduced robustness ?
• Standby power ?
TI - Lighting Power Products 30
Microcontroller-based ligting EVMs
Tools/Dev kit
Description Projected availability MCU LED Power output PFC AC/DC DC/DC COM
TMDSLEDBKLKIT DC input, 8 individual LED string control for color temperature control, precise grayscale, increased contrast ratio, aging/brightness,
End of Feb10 F2802xF28035 150W X
TPS62260EVM-338&EZ430-CC2500
DCDC, RGB demo controlled in star network by 2,4GHz simpliciTI (TM) RF Now MSP430
CC2500 3W X
TMDSPLCKIT-V1
Power Line Communication (PLC) Modem Developer’s Kit
OFDM and S-FSK on cenelec ASFSK on cenelec B
End of Feb10 X X X
TI - Lighting Power Products 31
Adding intelligence to LED systemsPower conversionControlCommunication
TI - Lighting Power Products 32
Benefits of MCU-based power conversion
• Advanced power algorithms possible– PFC, AC/DC, DC/DC, various current control
topologies, etc.
• Integration with Communications/control
• Improved efficiency over variety of load
• Design flexibility
• Multiple strings support without the added cost of LED drive
TI - Lighting Power Products 33
LED Lighting Developer’s Kit
•Piccolo F28035
•12-48V DC input to SEPIC DC/DC stage 50V DC output
•8 strings of 30 watts
•Open source hardware, including gerber files, schematics, and BOMs
Hardware
• Digital DC/DC SEPIC control
• Digital independant pulsed current LED driver control
• Low CPU utilization gives headroom for other system related tasks
Software
Price: $379Part number: tmdsdcdcledkit
Available NOW
TI - Lighting Power Products 34
LED Lighting Developer’s Kit Block Diagram
34
Based on Piccolo F28035 controlCARD
•Buck/Boost topology•SEPIC topology is non inverting•Can take an input voltage and raise or lower it
•Requires only 1 PWM and 1 MOSFET•Limited efficiency•Low component count
Why SEPIC DC/DC?
12V-48V
Max 50V30W per string
TI - Lighting Power Products 35
Vref
Iout
ADC
HW
rslt0
ADCDRV
EPWM
HW
Duty
BUCKDRV
V
I
rslt1
CNTL2P2Z
UoutRef
FB
Voltage Controller
Vout
A
DAC10 bit
Vref
zeroI
Analog comp
Trip
DutyMax
system monitoringdiagnostics
Vin Vout
DRVPWM
blnk
Power Stage – Loop Control
PFC
PWM-1
F28xxx
ADC
12 bit
I2CSPI
RS232CAN
CPU32 bit
Vref
PWM-n
DC/DC
DC/DC
DC/DC
DC/DC
Filter+
Vac
control
Voltage Mode Avg Current Mode
Peak Current Mode
Constant Power
V-ref
Vout
Voltage Controller
CNTL2P2Z
UoutRef
FB
ADC
HWrslt0
ADCDRV
EPWM
HWDuty
BUCKDRV
PWM
Vin Vout
BuckDRV
V-ref
Iout
Current Controller
CNTL2P2Z
UoutRef
FB
ADC
HW
rslt0
ADCDRV
EPWM
HWDuty
BUCKDRV
Vin Vout
DRV
V
I
rslt1
CNTL2P2Z
UoutRef
FB
Voltage Controller
Vout
PWM
CurrentController
CNTL2P2Z
OutRef
Fdbk
CNTL2P2Z
OutRef
FdbkIout
VoutOut
V
I
Pwr
V-I-PwrHandOver
Mgr
Iout
Vout
V-ref
I-ref
Voltage Controller
ADC
HW
rslt0
ADCDRV
EPWM
HWDuty
BUCKDRV
Vin Vout
DRV
V
I
rslt1
PWM
CNTL2P2Z
OutRef
Fdbk
PowerController
Pwr-refX
Vmeas Imeas
TI - Lighting Power Products 36
Adding intelligence to LED systemsPower conversionControlCommunication
December 16th, 2009 TI - Lighting Power Products 37
• Control example#1 aging compensation• Control example#2 Constant Color Temperature• Control example#3 presence sensing• Control example#4 Dimming scheduler• Control example#5 Metrology with MSP430F4
December 16th, 2009 TI - Lighting Power Products 38
Control example#3 presence sensing
MSP430F2 example code and ref des
• MSP430 is free 99,975% of time
• 9,37uA average standby current
DM, video-based Intelligent Occupancy sensing
• Reliable occupancy sensing and counting
• And more…
TI - Lighting Power Products 39
Adding intelligence to LED systemsPower conversionControlCommunication
December 16th, 2009 TI - Lighting Power Products 40
Communication summaryCommunication protocols
Software MCU Initial code dev platform
Certification / standard
Demo platform Status/ Comments
DALIC2000 MSP430F
2619 Done TPS62660EVM-338Demo code and reference design available
MSP430
DMX512C2000 MSP430F
2012 Done Wall washer reference design
Demo code and reference design available
MSP430
PLC (SFSK)
C2000F2803x
EN50065 TMDS2808SOM1B Available early March2010, cenelec B
PLC (OFDM)
C2000
F2833x EN50065(Cenelec) LED Streetlighting
reference design
Up to 76.8KBPS, 24-94.5kHz (Cenelec A)
IEC 6100-3 (EMC)
Released
KNX MSP430MSP430F2
EN 50090 ISO/IEC 14543-3-x
Weinzierl/TapkoAvailable through 3P
KNX-RF MSP430MSP430F2/CC1101 Weinzierl/Tapko
Available through 3P
802.15.4 MSP430F541x/5x 802.15.4—
completeMSP430F5438 experimenters board
Released
ZigBee MSP430F5438 ZigBee—
completeMSP430F 5438 experimenters board
Released
DALI Interface
POWER Module
TPS40211
TPS40211PWM
1~3 Channels
UART
ISO7221RX
TX
RS485
TPS40211
TX
RX DALI ProtocolSoftware
StackVREF
-+
MSP430F2132
TLV1117-3.3
DALI BUS
AC 220V
+3.3V
TI - Lighting Power Products 42
www.ti.com/led
Reference Designs, Products, White Papers, Articles, Tools, Videos, etc.
www.ti.com/mculighting
TI - Lighting Power Products 44
44
Newly AvailableLED Reference Design Cookbook (slyt349)
http://focus.ti.com/lit/sg/slyt349/slyt349.pdf
December 16th, 2009 TI - Lighting Power Products 45
Chance to win one of below FREE Texas Instruments modules!
TMDSDCDCLEDKIT (1824821) - worth 349 USDThe LED DC/DC Developer's Kit iincluding everything to start developing a digitally controlled LED DC/DC system
TPS62260LED-338 + EZ430-RF2500 (1655482+1382267) - worth 49 USDEvaluation module that controls the color and brightness of LEDs with wireless communication functionality
UCC28810EVM-002 (1824822) - worth 49 USDConstant current non-isolated power supply evaluation module for LED lighting applications
UCC28810EVM-003 (1824823) – worth 49 USD110W offline AC-to-DC LED current driver module with power factor correction
* There will be a draw after the event ends and the winners will be announced by e-mail by July 15th 2010
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