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TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 1 the lumenology company copyright 2010, taos inc. www.taosinc.com three-channel rgb color sensor converts light intensity to voltage single-voltage supply operation ? 4.5 v to 5.5 v rail-to-rail output programmable gain settings: ? TCS3103 (2 , 4 ) ? tcs3104 (4 , 1 ) low supply current ? 270 a typical fast response time ? rise time = 12 s typical low dark offset description the TCS3103 and tcs3104 rgb light-to-voltage converters combine three photodiodes with optical filters, amplifiers, and gain-switching circuitry on a single chip. the output of each channel is a voltage that is linearly proportional to light intensity (irradiance) on the corresponding photodiode element. gain is switchable via a digital input pin from 1 to 4 on the tcs3104, and from 2 to 4 on the TCS3103 (as compared to 1 of tcs3104). each channel on the device consists of a photodiode with a red, green, or blue optical filter, a current-to-voltage converter, and gain control elements. the voltage from each of the red, green, and blue channels is output on the v or , v og , and v ob pins, respectively. the single mfp pin controls the gain for all three channels. each of the three photodiode channels is split into three elements, which are dispersed in a 3 3 array. this makes the device less sensitive to non-uniform illumination across the sensing area. the overall photodiode active area is 378 m 378 m. each channel is factory-trimmed for low dark offset voltage and uniform sensitivity from device-to-device. the TCS3103 and tcs3104 are intended for use in a variety of applications including color-point feedback control in solid-state illumination and backlight systems, color adjustment in printers, process controls, diagnostic systems, paper and product handling, toys, and games. functional block diagram v dd = 4.5 v to 5.5 v v or red channel current-to-voltage converter mfp green channel blue channel v og v ob control texas advanced optoelectronic solutions inc. 1001 klein road suite 300 plano, tx 75074 (972) 673-0759 6 v or 5 v og 4 v ob v dd 1 gnd 2 mfp 3 package fn dual flat no-lead (top view) ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 2 copyright 2010, taos inc. the lumenology company www.taosinc.com detailed description the TCS3103 and tcs3104 devices output a voltage that is linearly proportional to light intensity in the spectral range of interest on each of the three sensor channels. figure 2 shows how each sensor responds to light of various wavelengths. the peak response of each of the three channels roughly corresponds to blue, green, and red portions of the visible light spectrum. thus, when light impinges upon the three elements, each element gives an output that corresponds to the blue, green, and red components of the light. by measuring the amplitude and ratios of the three channels, information about the color of the light can be obtained. each channel responds linearly to light intensity from a range of near zero light to a maximum value that is determined by the gain and the supply voltage of the device. the output of the device can swing from near ground level to near the supply voltage of the device. the dark voltage, or outpu t of the device with no light input, is determined by internal amplifier offsets and is factory-trimmed to be a minimum value. if very accurate, low-level light measurement is required, the dark voltage value for each channel can be measured and subtracted from subsequent light readings to obtain a more accurate light measurement. the multifunction pin (mfp) on each device can be used for selecting gain mode (table 1). table 1. device programming option device mode details TCS3103 gsm (gain select mode) 2 (mfp = 0) or 4 (mfp = 1) tcs3104 gsm (gain select mode) 4 (mfp = 0) or 1 (mfp = 1) terminal functions terminal type description name no. type description gnd 2 power power supply ground. all voltages are referenced to gnd. mfp 3 i multi-function logic input. v dd 1 power supply voltage. v ob 4 o blue channel voltage output. v og 5 o green channel voltage output. v or 6 o red channel voltage output. available options device gain package ? leads package designator ordering number TCS3103 2 , 4 dual flat no-lead ? 6 fn TCS3103fn tcs3104 4 , 1 dual flat no-lead ? 6 fn tcs3104fn ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 3 the lumenology company copyright 2010, taos inc. www.taosinc.com absolute maximum ratings over operating free-air temperature range (unless otherwise noted) ? supply voltage, v dd (see note 1) 6 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg ?40 c to 85 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . esd tolerance, human body model 2000 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . moisture sensitivity level 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . solder conditions in accordance with jedec j?std?020a, maximum temperature 260 c . . . . . . . . . . . . . . . ? stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only, a nd 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, v dd 4.5 5 5.5 v operating free-air temperature, t a ?30 70 c input low voltage on mfp pin, v il v dd = 5 v ?0.5 1.5 v input high voltage on mfp pin, v ih v dd = 5 v 3.5 5.5 v load capacitance, c l v dd = 5 v 100 pf electrical characteristics v dd = 5 v, t a = 25 c, r l = 10 k (unless otherwise noted) parameter test conditions min typ max unit v d dark voltage, v or , v og , v ob e e = 0 0 10 mv v om maximum output voltage v dd = 5 v 4.8 v i dd supply current v dd = 5 v, e e = 0 270 500 a p = 470 nm, gain select = 1 0.02 v/ r er irradiance responsivity, v or p = 524 nm, gain select = 1 0.09 mv/ ( w/cm 2 ) r er irradiance responsivity, v or p = 640 nm, gain select = 1 0.3 0.4 0.5 ( w/ cm 2) p = 470 nm, gain select = 1 0.13 v/ r eg irradiance responsivity, v og p = 524 nm, gain select = 1 0.18 0.25 0.31 mv/ ( w/cm 2 ) r eg irradiance responsivity, v og p = 640 nm, gain select = 1 0.06 ( w/ cm 2) p = 470 nm, gain select = 1 0.15 0.2 0.25 v/ r eb irradiance responsivity, v ob p = 524 nm, gain select = 1 0.13 mv/ ( w/cm 2 ) r eb irradiance responsivity, v ob p = 640 nm, gain select = 1 0.12 ( w/ cm 2) gain scaling, 1 to 2 1.9 2 2.1 gain scaling, 1 to 4 3.8 4 4.2 t c temperature coefficient of output voltage p 700 nm, ?30 c t a 70 c 360 ppm/ c dynamic characteristics, v dd = 5 v, t a = 25 c, r l = 10 k (unless otherwise noted) parameter test conditions min typ max unit gain select = 1 12 s t r output pulse rise time, 10% to 90% of final value gain select = 2 24 s t r output pulse rise time, 10% to 90% of final value gain select = 4 40 s gain select = 1 15 s t f output pulse fall time, 90% to 10% of final value gain select = 2 28 s t f output pulse fall time, 90% to 10% of final value gain select = 4 44 s integrated noise voltage f = dc to 1 khz, e e = 0 200 vrms t pzx propagation delay, output active v dd ramp 0 v to 5 v 50 ms ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 4 copyright 2010, taos inc. the lumenology company www.taosinc.com parameter measurement information voltage waveform test circuit input e e 10% 90% output (see note b) t r 1/3 tcs310x r l v dd 1 3 + ? v ox pulse generator led (see note a) t f 90% 10% notes: a. the input irradiance is supplied by a pulsed al i ngap light-emitting diode with the following characteristics: p = 640 nm, t r < 1 s, t f < 1 s. b. the output waveform is monitored on an oscilloscope with the following characteristics: t r < 100 ns, z i 1 m , c i 20 pf. 2 c l mfp figure 1. switching times ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 5 the lumenology company copyright 2010, taos inc. www.taosinc.com typical characteristics figure 2 photodiode spectral responsivity ? wavelength ? nm 400 500 600 700 800 900 1000 1100 300 0 0.2 0.4 0.6 0.8 1 relative responsivity t a = 25 c normalized to red @ 750 nm red blue green figure 3 normalized output frequency vs. angular displacement ? angular displacement ? f o ? output frequency ? normalized 0 0.2 0.4 0.6 0.8 1 ?90 ?60 ?30 0 30 60 90 optical axis angular displacement is equal for both aspects figure 4 v dark vs. temperature dark voltage ? mv 0 25 50 75 100 0 0.2 0.4 0.6 0.8 1 1.2 t a ? free-air temperature ? c gain = 1 figure 5 i dd vs. temperature i dd ? a 25 50 75 0 250 260 280 300 320 330 270 290 310 100 t a ? free-air temperature ? c e e = 0 ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 6 copyright 2010, taos inc. the lumenology company www.taosinc.com application information power supply considerations the power supply lines (v dd and gnd) should be bypassed by placing an 0.1- f capacitor with low esr and short leads (ideally, a surface mount ceramic type) as close as possible to the device package. output interface although the output of the device can be connected to a comparator for simple threshold measurements, or to another amplifier stage, most applications will require that the three channels be connected to analog-to-digital converters (adcs) so that the light and color information can be processed by a microcontroller, computer, or other device. in many cases, the outputs can be directly connected to the adc inputs. in some cases, for example if the light is modulated, it may be desirable to insert active or passive low-pass filters on the channels prior to the adc, to smooth out the modulation ripple that would otherwise result in noisy measurements. the cutoff frequency of the filters would, of course, depend upon the modulation frequency of the incoming light. with a pulse-width modulated (pwm) input light signal, it may be possible to synchronize the adc sampling with the on-time of the pwm signal. in this case, a low-pass filter would not be required because the device output would be sampled only during the on time of the input light source. a recommendation for minimum pulse width would be 3 the rise time of the device under the chosen gain setting. device power up the tcs310x should use the following power up sequence: a stable ground reference from the system should be applied first, followed by the v dd power applied second. this means v dd cannot be applied while the gnd pin is floating or without a ground reference. afterward, the mfp pin may be biased or driven. the mfp pin must always have a valid logic reference level. the pin may be biased or driven to a logical high or logical low level. pcb pad layout suggested pcb pad layout guidelines for the dual flat no-lead (fn) surface mount package are shown in figure 6. 0.40 2.90 0.40 1.30 1.70 0.65 1.30 0.65 notes: a. all linear dimensions are in millimeters. b. this drawing is subject to change without notice. figure 6. suggested fn package pcb layout ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 7 the lumenology company copyright 2010, taos inc. www.taosinc.com mechanical data package fn dual flat no-lead 203 8 6 v or 5 v og 4 v ob vdd 1 gnd 2 mfp 3 top view side view bottom view lead free pb 300 50 650 2000 75 2000 75 pin 1 pin 1 end view 650 100 seating plane pin out top view photo-active area 750 150 203 150 notes: a. all linear dimensions are in micrometers. dimension tolerance is 20 m unless otherwise noted. b. the photo-active area is 378 m by 378 m, centered vertically and horizontally with a 75 m tolerance. c. package top surface is molded with an electrically nonconductive clear plastic compound having an index of refraction of 1.55 . d. contact finish is copper alloy a194 with pre-plated nipdau lead finish. e. this package contains no lead (pb). f. this drawing is subject to change without notice. figure 7. package fn ? dual flat no-lead packaging configuration ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 8 copyright 2010, taos inc. the lumenology company www.taosinc.com mechanical data top view detail a 2.18 0.05 a o 0.254 0.02 5 max 4.00 8.00 3.50 0.05 1.50 4.00 2.00 0.05 + 0.30 ? 0.10 1.75 b b aa 1.00 0.25 detail b 2.18 0.05 b o 5 max 0.83 0.05 k o 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 , b o , and k o 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 8. package fn carrier tape ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 9 the lumenology company copyright 2010, taos inc. www.taosinc.com manufacturing information the fn package has been tested and has demonstrated an ability to be reflow soldered to a pcb substrate. the process, equipment, and materials used in these test are detailed below. the solder reflow profile describes the expected maximum heat exposure of components during the solder reflow process of pr oduct on a pcb. temperature is measured on top of component. the components should be limited to a maximum of three passes through this solder reflow profile. table 2. tcs310x solder reflow profile parameter reference tcs310x average temperature gradient in preheating 2.5 c/sec soak time t soak 2 to 3 minutes time above 217 c t 1 max 60 sec time above 230 c t 2 max 50 sec time above t peak ?10 c t 3 max 10 sec peak temperature in reflow t peak 260 c temperature gradient in cooling max ?5 c/sec t 3 t 2 t 1 t soak t 3 t 2 t 1 t peak not to scale ? for reference only time (sec) temperature ( c) figure 9. tcs310x solder reflow profile graph ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 10 copyright 2010, taos inc. the lumenology company www.taosinc.com manufacturing 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 molding compound. to ensure the package molding compound contains the smallest amount of absorbed moisture possible, each device is dry-baked prior to being packed for shipping. devices are packed in a sealed aluminized envelope with silica gel to protect them from ambient moisture during shipping, handling, and storage before use. the fn package has been assigned a moisture sensitivity level of msl 3 and the devices should be stored under the following conditions: temperature range 5 c to 50 c relative humidity 60% maximum total time 6 months from the date code on the aluminized envelope ? if unopened opened time 168 hours or fewer rebaking w ill be required if the devices have been stored unopened for more than 6 months or if the aluminized envelope has been open for more than 168 hours. if rebaking is required, it should be done at 50 c for 12 hours. ams ag technical content still valid
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 11 the lumenology company copyright 2010, taos inc. 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. (t aos) 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 particu lar 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 t aos 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
TCS3103, tcs3104 light-to-voltage color sensor taos108b ? july 2010 12 copyright 2010, taos inc. the lumenology company www.taosinc.com ams ag technical content still valid

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