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Technical content
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COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 The LUMENOLOGY /C0114 Company /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. www.taosinc.com
Features
/C0068RGB and Clear Color Sensing and Proximity Detection in a Single Device /C0068Color Light Sensing with IR-Blocking Filter − Programmable Analog Gain and Integration Time − 3,800,000:1 Dynamic Range − Very High Sensitivity — Ideally Suited for Operation Behind Dark Glass /C0068Proximity Detection − Ambient Light Rejection − Programmable Integration Time − Current Sink Driver for External IR LED /C0068Maskable Light and Proximity Interrupt − Programmable Upper and Lower Thresholds with Persistence Filter /C0068Power Management − Low Power — 2.5-/C0109A Sleep State − 65-/C0109A Wait State withProgrammable Wait State Time from 2.4 ms to > 7 Seconds /C0068I2C Fast Mode Compatible Interface − Data Rates up to 400 kbit/s − Input Voltage Levels Compatible with VDD or 1.8 V Bus /C0068Register Set and Pin Compatible with the TCS3x71 Series /C0068Small 2 mm /C0121 2.4 mm Dual Flat No-Lead (FN) Package
Applications
/C0068RGB LED Backlight Control /C0068Ambient Light Color Temperature Sensing /C0068Cell Phone Touch Screen Disable /C0068Mechanical Switch Replacement /C0068Industrial Process Control /C0068Medical Diagnostics End Products and Market Segments /C0068HDTVs, Mobile Handsets, Tablets, and Portable Media Payers /C0068Medical and Commercial Instrumentation /C0068Toys /C0068Solid State and General Lighting
Description
The TCS3772 device family provides red, green, blue, and clear (RGBC) light sensing and, when coupled with an external IR LED, proximity detection. These devices detect light intensity under a variety of lighting conditions and through a variety of attenuation materials, including dark glass. The proximity detection feature allows a large dynamic range of operation for accurate short distance detection, such as in a cell phone, for detecting when the user positions the phone close to their ear. An internal state machine provides the ability to put the device into a low power state in between proximity and RGBC measurements providing very low average power consumption. The color sensing feature is useful in applications such as LED RGB backlight control, solid state lighting, reflected LED color sampler, or fluorescent light color temperature detection. With the addition of an IR blocking filter, the device is an excellent ambient light sensor, color temperature monitor, and general purpose color sensor. /C0114 /C0114 Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road /C0083 Suite 300 /C0083 Plano, TX 75074 /C0083 (972) 673-0759
Package Drawing Not to Scale PACKAGE FN DUAL FLAT NO-LEAD (TOP VIEW)
6 SDA
5 INT
4 LDR
V DD 1 SCL 2 GND 3 ams AG Technical content still valid
COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. The LUMENOLOGY /C0114 Company www.taosinc.com Functional Block Diagram SDA VDD INT SCL LDR Wait Control Prox ADC Prox Control Prox Data IR LED Constant Current Sink Clear ADC Prox Integration Upper Limit Upper Limit Lower Limit Lower Limit Interrupt I2C Interface GND Red ADC Green ADC Blue ADC Clear Data Red Data Green Data Blue Data RGBC Control Blue Green Red Clear Detailed Description The TCS3772 is a next-generation digital color light sensor device containing four integrating analog-to-digital converters (ADCs) that integrate currents from photodiodes. The device contains a 3 × 4 photodiode array used for color measurements and a 1 × 4 photodiode array used for proximity measurements. Integration of all color sensing channels occurs simultaneously. Upon completion of the conversion cycle, the conversion result is transferred to the corresponding data registers. The transfers are double-buffered to ensure that the integrity of the data is maintained. Communication with the device is accomplished through a fast (up to 400 kHz), two-wire I 2C serial bus for easy connection to a microcontroller or embedded controller. The device provides a separate pin for level-style interrupts. The interrupt feature simplifies and improves system efficiency by eliminating the need to poll a sensor for a light intensity value. When interrupts are enabled, an interrupt is generated when the value of a clear channel or proximity conversion is greater than an upper threshold or less than a lower threshold. Once the interrupt is asserted, it remains asserted until cleared by the controlling firmware. In addition, a programmable interrupt persistence filter allows the user to set the number of consecutive clear channel or proximity conversions outside of the threshold region that are necessary to trigger an interrupt. Interrupt thresholds and persistence filter settings are configured independently for both clear and proximity. Proximity detection requires only a single external IR LED. An internal LED driver can be configured to provide a constant current sink of 12.5 mA, 25 mA, 50 mA, or 100 mA of current. No external current limiting resistor is required. The number of proximity LED pulses can be programmed from 1 to 255 pulses. Each pulse has a 14-μs period. ams AG Technical content still valid
COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 The LUMENOLOGY /C0114 Company /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. www.taosinc.com Terminal Functions TERMINAL TYPE DESCRIPTIONNAME NO. TYPE DESCRIPTION GND 3 Power supply ground. All voltages are referenced to GND. INT 5 O Interrupt — open drain (active low). LDR 4 O LED driver for proximity emitter — open drain. SCL 2 I I2C serial clock input terminal — clock signal for I 2C serial data. SDA 6 I/O I2C serial data I/O terminal — serial data I/O for I 2C . VDD 1 Supply voltage. Available Options DEVICE ADDRESS PACKAGE − LEADS INTERFACE DESCRIPTION ORDERING NUMBER TCS37721† 0x39 FN−6 I2C Vbus = VDD Interface TCS37721FN TCS37723† 0x39 FN−6 I2C Vbus = 1.8 V Interface TCS37723FN TCS37725† 0x29 FN−6 I2C Vbus = VDD Interface TCS37725FN TCS37727 0x29 FN−6 I2C Vbus = 1.8 V Interface TCS37727FN † Contact TAOS for availability. Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)† † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: All voltages are with respect to GND. Recommended Operating Conditions MIN NOM MAX UNIT Supply voltage, VDD (TCS37721 & TCS37725) (I2C Vbus = VDD) 2.7 3 3.6 V Supply voltage, VDD (TCS37723 & TCS37727) (I2C Vbus = 1.8 V) 2.7 3 3.3 V Operating free-air temperature, TA −30 70 °C ams AG Technical content still valid
COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. The LUMENOLOGY /C0114 Company www.taosinc.com Operating Characteristics, VDD = 3 V, TA = 25/C0053C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Active — LDR pulses off 235 330 IDD Supply current Wait state 65 μAIDD Supply current Sleep state — no I 2C activity 2.5 10 μA V INT SDA output low voltage 3 mA sink current 0 0.4 VVOL INT, SDA output low voltage 6 mA sink current 0 0.6 V ILEAK Leakage current, SDA, SCL, INT pins −5 5 μA ILEAK Leakage current, LDR pin −5 5 μA V SCL SDA input high voltage TCS37721 & TCS37725 0.7 VDD VVIH SCL, SDA input high voltage TCS37723 & TCS37727 1.25 V V SCL SDA input low voltage TCS37721 & TCS37725 0.3 VDD VVIL SCL, SDA input low voltage TCS37723 & TCS37727 0.54 V Optical Characteristics, VDD = 3 V, TA = 25/C0053C, AGAIN = 16/C0121, ATIME = 0xF6 (unless otherwise noted) (Note 1) PARAMETER TEST Red Channel Green Channel Blue Channel Clear Channel UNITPARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT λD = 465 nm Note 2 0% 15% 10% 42% 65% 88% 11.0 13.8 16.6 Re Irradiance responsivity λD = 525 nm Note 3 4% 25% 60% 85% 10% 45% 13.2 16.6 20.0 counts/ μW/ cm2responsivity λD = 615 nm Note 4 80% 110% 0% 14% 5% 24% 15.6 19.5 23.4 cm2 NOTES: 1. The percentage shown represents the ratio of the respective red, green, or blue channel value to the clear channel valu e. 2. The 465 nm input irradiance is supplied by an InGaN light-emitting diode with the following characteristics: dominant wavelength λD = 465 nm, spectral halfwidth Δλ½ = 22 nm. 3. The 525 nm input irradiance is supplied by an InGaN light-emitting diode with the following characteristics: dominant wavelength λD = 525 nm, spectral halfwidth Δλ½ = 35 nm. 4. The 615 nm input irradiance is supplied by a AlI nGaP light-emitting diode with the following characteristics: dominant wavelength λD = 615 nm, spectral halfwidth Δλ½ = 15 nm. RGBC Characteristics, VDD = 3 V, TA = 25/C0053C, AGAIN = 16/C0121, AEN = 1 (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Dark ADC count value Ee = 0, AGAIN = 60×, ATIME = 0xD6 (100 ms) 0 1 5 counts ADC integration time step size ATIME = 0xFF 2.27 2.4 2.56 ms ADC number of integration steps (Note 5) 1 256 steps ADC counts per step (Note 5) 0 1024 counts ADC count value (Note 5) ATIME = 0xC0 (153.6 ms) 0 65535 counts Gi l i lt i t 1 × i 4× 3.8 4 4.2 Gain scaling, relative to 1× gain 16× 15 16 16 8 /C0121Gain scaling, relative to 1× gain setting 16× 15 16 16.8 /C0121setting 60× 58 60 63 /C0121 NOTE 5: Parameter ensured by design and is not tested. ams AG Technical content still valid
COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 The LUMENOLOGY /C0114 Company /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. www.taosinc.com Proximity Characteristics, VDD = 3 V, TA = 25/C0053C, PEN = 1 (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IDD Supply current LDR pulse on 3 mA ADC conversion time step size PTIME = 0xFF 2.27 2.4 2.56 ms ADC number of integration steps (Note 1) 1 256 steps ADC counts per step (Note 1) PTIME = 0xFF 0 1023 counts ADC count value λp = 850 nm, Ee = 770.1 μW/cm2, PTIME = 0xFB, PPULSE = 1 (Note 3) 1350 1900 counts ADC output responsivity λp = 850 nm, PTIME = 0xFF, PPULSE = 1 (Note 3) 0.175 0.211 0.247 counts/ μW/cm2 Noise (Notes 1 2 3) E 0 PTIME 0xFF PPULSE 8 (Note 6) 2 %F SNoise (Notes 1, 2, 3) Ee = 0, PTIME = 0xFF, PPULSE = 8 (Note 6) 2% FS LED pulse count (Note 1) 0 255 pulses LED pulse period 14.0 μs LED pulse width — LED on time 6.3 μs PDRIVE = 0 80 106 132 LED drive current ISINK sink current @ 1.6 V, PDRIVE = 1 50 mALED drive current ISINK sink current @ 1.6 V, LDR pin PDRIVE = 2 25 mA PDRIVE = 3 12.5 Maximum operating distance (Notes 1, 4, 5) PDRIVE = 0 (100 mA), PPULSE = 64 Emitter: λ p = 850 nm, 20° half angle, and 60 mW/sr Object: 16 × 20-inch, 90% reflective Kodak Gray Card (white surface) Optics: Open view (no glass, no optical attenuation) 30 inches NOTES: 1. Parameter is ensured by design or characterization and is not tested. 2. Proximity noise is defined as one standard deviation of 600 samples. 3. Proximity noise typically increases as √ PPULSE 4. Greater operating distances are achievable with appropriate optical system design considerations. See available TAOS application notes for additional information. 5. Maximum operating distance is dependent upon emitter and the reflective properties of the object’s surface. 6. Proximity noise test was done using the following circuit: TCS3772 VDD 1 /C0109F 22 /C0087 15.0 /C00871 VDD GND LDR Wait Characteristics, VDD = 3 V, TA = 25/C0053C, WEN = 1 (unless otherwise noted) PARAMETER TEST CONDITIONS CHANNEL MIN TYP MAX UNIT Wait step size WTIME = 0xFF 2.27 2.4 2.56 ms Wait number of steps (Note 7) 1 256 steps NOTE 7: Parameter ensured by design and is not tested. ams AG Technical content still valid
† Specified by design and characterization; not production tested. Figure 1. Timing Diagrams
Copyright /C0069 2012, TAOS Inc. bit is set, the device will move to the start state. It will then continue through the Prox, Wait, and RGBC states. will continue until all conversions are completed and then go into a low power sleep mode. Figure 9. Simplified State Diagram power on (PON) is in register 0, bit 0. This is represented as PON (r0x00:b0).
transfer, the device automatically moves to the next state in accordance with the configured state machine. Figure 10. RGBC Operation
COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. The LUMENOLOGY /C0114 Company www.taosinc.com Referring again to Figure 12, the reflected IR LED and the background energy is integrated during the LED On time, then during the LED Off time, the integrated background energy is subtracted from the LED On time energy, leaving the external IR LED energy to accumulate from pulse to pulse. After the programmed number of proximity pulses have been generated, the proximity ADC converts and scales the proximity measurement to a 16-bit value, then stores the result in two 8-bit proximity data (PDATAx) registers. ADC scaling is controlled by the proximity ADC conversion time (PTIME) which is programmable from 1 to 256 2.4-ms time units. However, depending on the application, scaling the proximity data will equally scale any accumulated noise. Therefore, in general, it is recommended to leave PTIME at the default value of one 2.4-ms ADC conversion time (0xFF). Once the first proximity cycle has completed, the proximity valid (PVALID) bit in the Status register will be set and remain set until the proximity detection function is disabled (PEN). For additional information on using the proximity detection function behind glass and for optical system design guidance, please see available TAOS application notes. ams AG Technical content still valid
Copyright /C0069 2012, TAOS Inc. the proximity interrupt enable (PIEN) or Clear interrupt enable (AIEN) fields in the enable register (0x00). interrupt low threshold (PILTx) or exceeds the proximity interrupt high threshold (PIHTx). the low threshold is evaluated. proximity persistence (PPERS) values. See the persistence register for details on the persistence filter values. is received (see command register). Figure 13. Programmable Interrupt
machine cycle time, and provides details to determine system level timing. at the end of the Prox ADC state. WTIME. The formula to determine the wait time is given in the box associated with the Wait state in Figure 14. is generated as a result of the RGBC cycle, it will be asserted at the end of the RGBC ADC. Notes: 1. There is a 2.4 ms warm-up delay if PON is enabled. If PON is not enabled, the device will return to the Sleep state as shown.
- PON, PEN, WEN, and AEN are fields in the Enable register (0x00).
Figure 14. Detailed State Diagram
Copyright /C0069 2012, TAOS Inc. in the example, average IDD is estimated to be 186 μA. Table 1. Power Management
- Prox Accum − LED Off time = 7.7 μ s per pulse × 4 pulses = 30.9μs = 0.031 ms
current occurs when the Wait state is not enabled. Table 2. Average IDD Current
The I2C standard provides for three types of bus transaction: read, write, and a combined protocol (Figure 15). commands can also be used to clear interrupts. review the NXP I2C design specification at http://www.i2c−bus.org/references/. Figure 15. I2C Protocols
Copyright /C0069 2012, TAOS Inc. of the ADC conversions. The register set is summarized in Table 3. Table 3. Register Address control/status register for following read/write operations.
The command registers specifies the address of the target register for future write and read operations. Table 4. Command Register CMD 7 Select Command Register. Must write as 1 when addressing COMMAND register.
00 Repeated byte protocol transaction
01 Auto-increment protocol transaction
10 Reserved — Do not use
11 Special function — See description below
Byte protocol will repeatedly read the same register with each data access. Block protocol will provide auto-increment function to read successive bytes.
00101 Proximity interrupt clear
00110 Clear channel interrupt clear
00111 Proximity and Clear interrupt clear
Copyright /C0069 2012, TAOS Inc. interrupts as shown in Table 5. Table 5. Enable Register Reserved 7:6 Reserved. Write as 0. PIEN 5 Proximity interrupt enable. When asserted, permits proximity interrupts to be generated. AIEN 4 Clear channel interrupt enable. When asserted, permits Clear interrupts to be generated. Power ON. This bit activates the internal oscillator to permit the timers and ADC channels to operate. interface, this bit is temporarily overridden and the oscillator is enabled, independent of the state of PON.
2.4-ms increments. Upon power up, the RGBC time register is set to 0xFF. Table 6. RGBC Time Register value of 0xFF (1 integration cycle). Table 7. Proximity Time Register Wait time is set 2.4 ms increments unless the WLONG bit is asserted in which case the wait times are 12× longer. WTIME is programmed as a 2’s complement number. Upon power up, the wait time register is set to 0xFF. Table 8. Wait Time Register NOTE: The Proximity Wait Time Register should be configured before PEN and/or AEN is/are asserted.
Copyright /C0069 2012, TAOS Inc. lower threshold specified, or above the higher threshold, an interrupt is asserted on the interrupt pin. Table 9. Clear Interrupt Threshold Registers lower threshold specified, or above the higher threshold, an interrupt is signaled to the host processor.
filtering is provided for proximity and the clear channel. Table 11. Persistence Filter Register PPERS 7:4 Proximity interrupt persistence. Controls rate of proximity interrupt to the host processor.
0000 Every proximity cycle generates an interrupt
APERS 3:0 Clear Interrupt persistence. Controls rate of Clear channel interrupt to the host processor.
0000 Every RGBC cycle generates an interrupt
Copyright /C0069 2012, TAOS Inc. The configuration register sets the wait long time. Table 12. Configuration Register Reserved 7:2 Reserved. Write as 0. Reserved 0 Reserved. Write as 0. The proximity pulse count register sets the number of proximity pulses that will be transmitted. Table 13. Proximity Pulse Count Register PPULSE 7:0 Proximity Pulse Count. Specifies the number of proximity pulses to be generated.
The Control register provides eight bits of miscellaneous control to the analog block. Table 14. Control Register PDRIVE 7:6 Proximity LED Drive Strength. AGAIN 1:0 RGBC Gain Control. The ID Register provides the value for the part number. The ID register is a read-only register. Table 15. ID Register
Copyright /C0069 2012, TAOS Inc. The Status Register provides the internal status of the device. This register is read only. Table 16. Status Register AINT 4 Clear channel Interrupt. PVALID 1 Proximity Valid. Indicates that a proximity cycle has completed since PEN was asserted. AVALID 0 RGBC Valid. Indicates that the RGBC cycle has completed since AEN was asserted. integration cycles end between the reading of the lower and upper registers. Table 17. ADC Channel Data Registers between the reading of the lower and upper registers.
Copyright /C0069 2012, TAOS Inc. Pattern Standard (2010) for the small outline no-lead (SON) package is shown in Figure 18. NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. Figure 18. Suggested FN Package PCB Layout
COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. The LUMENOLOGY /C0114 Company www.taosinc.com
PACKAGE INFORMATION
PACKAGE FN Dual Flat No-Lead 650 BSC TOP VIEW SIDE VIEW BOTTOM VIEW Lead Free Pb 300 /C0043 50 2000 /C0043 75 2400 /C0043 75 PIN 1 PIN 1 END VIEW 650 /C0043 50 PIN OUT TOP VIEW 750 /C0043 100 295 Nominal 406 /C0043 10 CL of Solder Contacts and Photodiode Array Area (Note B) CL of Solder Contacts of Photodiode Array Area (Note B)CL
125 Nominal
V DD 1 SCL 2 GND 3 496 /C0043 10 Photodiode Active Area (Note C) NOTES: A. All linear dimensions are in micrometers. B. The die is centered within the package within a tolerance of ± 75 μm. C. Double-Half Etch (DHE) is 97 ± 20 μm. Non-DHE is 203 ± 8 μm. D. Package top surface is molded with an electrically nonconductive clear plastic compound having an index of refraction of 1.55 . E. Contact finish is copper alloy A194 with pre-plated NiPdAu lead finish. F. This package contains no lead (Pb). G. This drawing is subject to change without notice. Figure 19. Package FN — Dual Flat No-Lead Packaging Configuration
Copyright /C0069 2012, TAOS Inc. NOTES: A. All linear dimensions are in millimeters. Dimension tolerance is ± 0.10 mm unless otherwise noted. B. The dimensions on this drawing are for illustrative purposes only. Dimensions of an actual carrier may vary slightly. C. Symbols on drawing A o, Bo, and Ko are defined in ANSI EIA Standard 481−B 2001. D. Each reel is 178 millimeters in diameter and contains 3500 parts. E. TAOS packaging tape and reel conform to the requirements of EIA Standard 481−B. F. In accordance with EIA standard, device pin 1 is located next to the sprocket holes in the tape. G. This drawing is subject to change without notice. Figure 20. Package FN Carrier Tape
The FN package has been tested and has demonstrated an ability to be reflow soldered to a PCB substrate. be limited to a maximum of three passes through this solder reflow profile. Table 19. Solder Reflow Profile Figure 21. Solder Reflow Profile Graph
COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 The LUMENOLOGY /C0114 Company /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. www.taosinc.com STORAGE INFORMATION Moisture Sensitivity Optical characteristics of the device can be adversely affected during the soldering process by the release and vaporization of moisture that has been previously absorbed into the package. To ensure the package contains the smallest amount of absorbed moisture possible, each device is baked prior to being dry packed for shipping. Devices are dry packed in a sealed aluminized envelope called a moisture-barrier bag with silica gel to protect them from ambient moisture during shipping, handling, and storage before use. Shelf Life The calculated shelf life of the device in an unopened moisture barrier bag is 12 months from the date code on the bag when stored under the following conditions: Shelf Life: 12 months Ambient Temperature: < 40 °C Relative Humidity: < 90% Rebaking of the devices will be required if the devices exceed the 12 month shelf life or the Humidity Indicator Card shows that the devices were exposed to conditions beyond the allowable moisture region. Floor Life The FN package has been assigned a moisture sensitivity level of MSL 3. As a result, the floor life of devices removed from the moisture barrier bag is 168 hours from the time the bag was opened, provided that the devices are stored under the following conditions: Floor Life: 168 hours Ambient Temperature: < 30 °C Relative Humidity: < 60% If the floor life or the temperature/humidity conditions have been exceeded, the devices must be rebaked prior to solder reflow or dry packing. Rebaking Instructions When the shelf life or floor life limits have been exceeded, rebake at 50°C for 12 hours. ams AG Technical content still valid
COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS145B − SEPTEMBER 2012 /C0114 /C0114 Copyright /C0069 2012, TAOS Inc. The LUMENOLOGY /C0114 Company www.taosinc.com PRODUCTION DATA — information in this document is current at publication date. Products conform to specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard warranty. Production processing does not necessarily include testing of all parameters. LEAD-FREE (Pb-FREE) and GREEN STATEMENT Pb-Free (RoHS) TAOS’ terms Lead-Free or Pb-Free mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TAOS Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br) TAOS defines Green to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material). Important Information and Disclaimer The information provided in this statement represents TAOS’ knowledge and belief as of the date that it is provided. TAOS bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TAOS has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TAOS and TAOS suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. NOTICE Texas Advanced Optoelectronic Solutions, Inc. (TAOS) reserves the right to make changes to the products contained in this document to improve performance or for any other purpose, or to discontinue them without notice. Customers are advised to contact TAOS to obtain the latest product information before placing orders or designing TAOS products into systems. TAOS assumes no responsibility for the use of any products or circuits described in this document or customer product design, conveys no license, either expressed or implied, under any patent or other right, and makes no representation that the circuits are free of patent infringement. TAOS further makes no claim as to the suitability of its products for any particular purpose, nor does TAOS assume any liability arising out of the use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS, INC. PRODUCTS ARE NOT DESIGNED OR INTENDED FOR USE IN CRITICAL APPLICATIONS IN WHICH THE FAILURE OR MALFUNCTION OF THE TAOS PRODUCT MAY RESULT IN PERSONAL INJURY OR DEATH. USE OF TAOS PRODUCTS IN LIFE SUPPORT SYSTEMS IS EXPRESSLY UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER’S RISK. LUMENOLOGY, TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are registered trademarks of Texas Advanced Optoelectronic Solutions Incorporated. ams AG Technical content still valid