EZ-Color TM HB LED Controllers

2 Cypress Confidential Dramatic New Lighting Applications Never-before seen color performance and flexibility provide unique advantages in traditional lighting markets, such as architectural lighting, signage, and many more

3 Cypress Confidential Making the Leap EZ! Additional color performance provides unique design challenges Fixed color point C programming Complex design EZ-Color bridges the gap for light designers with a visual design tool

4 Cypress Confidential Color Mix System: Current Solution Switching Regulators Provides constant current source to LEDs (350mA per LED) National, Linear Tech, Zetex Microcontrollers Manages LED brightness & color output Accomplishes dimming through PWM channels 1 PWM channel per color SR Micro Optic/Diffuser LED Array Diffusing material to Protect users and to aid in color uniformity To host controller Light Engine Sensors Temperature or Color sensors to provide feedback to micro Temp: National and others Color: TAOS, ST, Avago, Capella Temp/Color Sensor

5 Cypress Confidential Design challenges with HB LEDs SR Micro Temp/Color Sensor LED ShortcomingsCustomer ChallengeCustomer Need Binning: LEDs are spec’d by chromaticity, brightness, and power Difficult to achieve repeatable color point Flexibility at production time Temp Variation: LEDs degrade over temp, different color LEDs degrade at different rates Difficult to maintain color point over time Color control during production

6 Cypress Confidential The same color LED varies in output and is classified by bins HB LED Challenges: Binning Green Blue Bin “K” Bin “L” Inaccurate Color Mixing No production consistency for end systems Bin “J” Red LED

7 Cypress Confidential HB LED Challenges: Temperature Temperature effects Light output decreases Wavelength increases Forward voltage decreases LEDs degrade at different rates Added complexity in controlling a color mixed output over time

8 Cypress Confidential Firmware, firmware, firmware Map out possible permutations & incorporate into code – very inefficient How it could be done – OR – Use specific bin for a LED 10-15% premium for mandating specific HB LED bins IF available

9 Cypress Confidential HB LED design with ZERO Code PSoC Express 3.0 – Visual Embedded Design Tool Powerful new tool for lighting applications Create single or multiple color channel designs in minutes with ZERO “C” necessary LED-specific Express drivers for EZ-Color

10 Cypress Confidential Design Simulate Build Program & Monitor

11 Cypress Confidential Select Luxeon K2 3-LED Color Mixing Driver

12 Cypress Confidential Name the Output Driver, read the Datasheet for more information on functionality

13 Cypress Confidential Choose Temp Sensor, set Properties

14 Cypress Confidential Part numbers are selectable for dominant wavelength and Flux/Color bins Change Bins selected and the gamut will adjust on the CIE chart

15 Cypress Confidential Add Valuators (Variables) to control the output of the 3LED driver

16 Cypress Confidential Add additional logic valuators to vary the color For examples of the functionality and flexibility of EZ- Color and PSoC Express, download EZ-Color “Express Designs”

17 Cypress Confidential Use the Monitor function to Tune the desired fixed color point

18 Cypress Confidential Software PSoC Express offers unparalleled time to market performance Binning compensation improves color accuracy Temperature Compensation Algorithm offers color stability Integration Configurable dimmers support up to 16 LED channels Dimmers independently programmable from 8-32 bits of resolution Technology PrISM method reduces low frequency blinking inherent with PWMs Spread spectrum signal lowers radiated EMI EZ-Color TM HB LED Controller Advantages

19 Cypress Confidential EZ-Color TM Technology: PrISM PrISM creates a spread spectrum signal, which provides significant EMI reduction and reduces low frequency flicker of HB LEDs PWMPrISM 50% dimming High noise spikes No Harmonic spikes Low EMI

20 Cypress Confidential EZ-Color TM HB LED Controllers Cypress offers the industry’s most complete color mix solution All collateral available on HB LED drivers in Express 3.0 CY3261A-RGB board with Demo / Example projects Color Mixing Application Notes Training Learn more at the NetSeminar on July 18th 12 6 Analog Blocks Yes32KB16CY8CLED16 Yes16KB8CY8CLED08 Yes16KB4CY8CLED04 DMX512 FlashLED ChannelsPart Number LED RADIATION DO NOT STARE INTO BEAM CLASS 3 LASER PRODUCT BLUE GREEN RED

21 Cypress Confidential Appendix

22 Cypress Confidential Color Mixing Basics Mixing Red, Green, and Blue generates a color Red + Green = Yellow Blue + Red = Magenta CIE chart developed to provide science behind color Color space defined with (x,y,Y) coordinates x and y define chromaticity (color) Y define luminance (brightness)

23 Cypress Confidential Color Mixing Basics HB LEDs defined in (x,y) coordinates Red: (.68,.29) Green: (.23,.63) Blue: (.15,.06) These HB LEDs form a color gamut Output any color within the triangle

24 Cypress Confidential Color Mixing Basics: Cyan R G B 100% 50% Intensity

25 Cypress Confidential Color Mixing Basics: White R G B 100% 50% Intensity

26 Cypress Confidential Color Mixing Basics: Yellow R G B 100% 50% Intensity

27 Cypress Confidential CY3261A-RGB – From block diagram to PSoC Express® SSDM Blocks I2C Analog

28 Cypress Confidential CY3261A-RGB – Color Mix Firmware 5ms to compute a new color Color mix computations detailed in Lumileds AB-xx Prepackaged firmware solution

29 Cypress Confidential EZ-Color Temperature Solution Add Thermistor to the board PSoC Express offers prepackaged firmware solution Measure T B Calculate T J Compensate for Δ T J

30 Cypress Confidential PWM Dimming Available The choice is up to the designer 8 bit channel 16 bit channel Any iteration between 8 and 16 also available utilizing two 8 bit blocks Clock options utilize three internal clock dividers, from 24 MHz down to >100 Hz PSoC Dimming blocks can be tied together, up to 32 bits

31 Cypress Confidential DMX512 – Now available with EZ-Color! Serial communication interface Available with all EZ-Color devices