Color sensor. I 2 C interface-compatible color sensor. S WT. Connection example of I 2 C interface

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1 I 2 C interface-compatible color sensor The is a color sensor that supports the I 2 C (inter-integrated circuit) interface. It is sensitive to red (λ=615 nm), green (λ=530 nm), blue (λ=460 nm), and infrared (λ=855 nm) light, and outputs detected results as 16-bit digital data for each color. The photodiode for each color is automatically switched sequentially to perform measurements. The sensitivity and integration time can be adjusted so that light measurements can be performed over a wide range. Features I 2 C interface compatible Sequential measurements of red, green, blue, and infrared light 2-step sensitivity switching (sensitivity ratio 1 : 10) Sensitivity adjustment by setting the integration time Low voltage (2.5 V or 3.3 V) operation Low current consumption: 75 μ typ. Small package (WL-CSP: wafer level-chip size package) Internal infrared-cut filter Wide dynamic range (Low gain: 1 to 10 klx) pplications LCD backlight adjustment for cell phones, notebook PC, etc. Energy-saving sensor for large-size TV, etc. Various types of light detection or color adjustment Feature 01 I 2 C interface-compatible to allow direct connection to micro-controller Feature 02 WL-CSP makes the device even smaller and highly reliable The sensor supports the I 2 C interface and so can exchange data with the micro-controller using two signal lines jointly usable with The WL-CSP measures only mm and lead-free reflow solder (260 C) can be used. other devices. The digital output makes it easy to install into electronic devices such as cell phones and flat-panel TVs whose microcontroller is compatible with the I 2 C interface. The sensor supports I 2 C Fast mode (400 khz) and operates on 2.25 to 3.63 V. Connection example of I 2 C interface ddress 3 ddress 2 ddress 1 Cross section of WL-CSP EEP OM LCD driver Color sensor lass SD SCL Si chip Through-hole electrode Solder bump Infrared-cut filter esin Micro-controller SD: serial data SCL: serial clock KPICC0164E KPICC0171E 1

2 bsolute maximum ratings (Ta=25 C) Parameter Symbol Condition Value Unit Supply voltage Vdd -0.3 to +6 V Load current Io ±10 m Power dissipation P 100 mw Operating temperature Topr No dew condensation* 1-40 to +85 C Storage temperature Tstg No dew condensation* 1-40 to +100 C eflow soldering conditions* 2 Tsol Peak temperature 260 C max., 3 times - *1: When there is a temperature difference between a product and the surrounding area in high humidity environment, dew condensation may occur on the product surface. Dew condensation on the product may cause deterioration in characteristics and reliability. *2: Moisture absorption and reflow conditions: JEDEC J-STD-020D LEVEL2a Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. lways be sure to use the product within the absolute maximum ratings. ecommended operating conditions Parameter Symbol Condition Min. Typ. Max. Unit Supply voltage Vdd V High level input voltage (SD, SCL)* 3 Vih 0.7Vdd - Vdd V Low level input voltage (SD, SCL)* 3 Vil Vdd V us capacitance (SD, SCL) Cbus pf *3: Set so that Vdd=Vbus. Normal operation cannot be guaranteed unless used with this condition. Electrical and optical characteristics Sensor section [Ta=25 C, Vdd=3.3 V, light source, unless otherwise noted (initial setting: low gain, integration time: 546 ms/ch)] Parameter Symbol Condition Min. Typ. Max. Unit lue 400 to 540 Spectral response range* 4 λ reen 455 to 630 ed 575 to 660 nm Infrared, more than 700 nm 785 to 885 lue Peak sensitivity wavelength λp reen ed nm Infrared, more than 700 nm Operating mode Idd E=0 lx (dark state), Current consumption Standby mode Idds excluding output current μ Dark count Sd E=0 lx (dark state) counts ain ratio rg High gain/low gain Sbl lue Sgl reen Initial setting Srl ed Photo sensitivity Low gain Sirl Infrared Sbl lue counts/lx Sgl reen Initial setting* Srl ed Sirl Infrared ed/lue sensi. ratio Srl/Sbl Initial setting ed/reen sensi. ratio Low gain Srl/Sgl Same chip lue/reen sensi. ratio Sbl/Sgl Sbh lue Sgh reen Integration time Srh ed 546 ms/ch Photo sensitivity High gain Sirh Infrared Sbh lue counts/lx Sgh reen Integration time Srh ed 546 ms/ch* Sirh Infrared ed/lue sensi. ratio Srh/Sbh Integration time 546 ms/ch ed/reen sensi. ratio High gain Srh/Sgh Same chip lue/reen sensi. ratio Sbh/Sgh Integration time - Integration time setting (Tint) μs *4: elative sensitivity=more than 10% *5: Integration time is measured and corrected. See "Compensation method for sensitivity variation". Integration time measurement accuracy is 0.36%. 2

3 I 2 C section (Ta=25 C, Vdd=3.3 V, unless otherwise noted) Parameter Symbol Condition Min. Typ. Max. Unit I 2 C address DD 7 bits 0x2 ( ) I 2 C clock frequency fclk khz SD, SCL output voltage High level Voh p=2.2 kω 0.7Vbus - - V Low level Vol p=2.2 kω V Input/output terminal capacitance Ci pf SD/SCL output fall time* 6 tf p=2.2 kω, Cp=400 pf ns *6: SCL/SD output rise time is determined by a time constant of Cbus p. Note: The I 2 C interface (SD, SCL) timings conform to the "I 2 C bus specification version 2.1". egister map drs Function bit Control DC reset Standby function ain selection Integration mode Integration time setting Standby function 1: eset 1: Standby mode - 1: High gain 1: Manual setting mode (00) 87.5 μs, (01) 1.4 ms monitor 0: Operation 0: Operating mode 0: Low gain 0: Fixed period mode (10) 22.4 ms, (11) ms 01 Integration time manual setting register (MS) Manual timing register 02 Integration time manual setting register (LS) 03 register Output data (red, MS) 04 (red) Output data (red, LS) 05 register Output data (green, MS) 06 (green) Output data (green, LS) 07 register Output data (blue, MS) 08 (blue) Output data (blue, LS) 09 register Output data (infrared, MS) 0 (infrared) Output data (infrared, LS) drs 00 bit 7: sserting this bit to 1, the DC block is reset. The register data is not reset. To start the operation, set this bit to 0. drs 00 bit 6: sserting this bit to 1 the device goes into standby mode. The DC block stops its operation. The register data is not reset. To start the operation, set this bit to 0. drs 00 bit 5: This monitors auto standby function. 1 means standby mode. This is read only. drs 00 bit 3: ain selection bit. 1 is high gain mode and 0 is low gain mode. This bit is selecting the photodiode area. The size ratio of high gain photodiode area and low gain photodiode area is 10 : 1. Therefore the gain ratio is 10 times from low to high. drs 00 bit 2: sserting this bit to 1, the device goes into manual setting mode. Deasserting this bit to 0, goes into fixed period mode. In manual setting mode, the automatically goes to standby mode after a measurement is made. In fixed period mode, measurements are continuously repeated. drs 00 bit 1,0: These bits select the period of internal basis clock. The period is equal to integration time per color in fixed period mode. 00 is 87.5 us, 01 is 1.4 ms, 10 is 22.4 ms, 11 is ms. In manual setting mode, 00 is 175 μs, 01 is 2.8 ms, 10 is 44.8 ms, 11 is 368 ms. The integration time per color is set to multiple value (drs 01 & 02) with the period. drs 01 & 02: This is a multiple value setting in manual setting mode, and can be set to a minimum of 0x0000 and a maximum of 0xFFFF (65535). This is used to set how far to expand the integration time per color which specified by Integration time setting (Tint). For example, if you want to set the integration time per color to 546 ms, set 175 μs by Tint= 00 and then set this register to N=3120 (0xC30). Mode Manual timing register (drs 01 & 02) Integration time setting (Tint) Fixed period mode Disabled 87.5 μs 1.4 ms 22.4 ms ms Manual setting mode N 175 N μs 2.8 N ms 44.8 N ms N ms drs 03 to 0: These bytes are register for sensor data. measurement result is stored in these registers when the I 2 C command is changed to read mode. The values are kept until next read cycle. Initial setting [Low gain, manual setting mode, Tint=00 (175 μs), integartion time 546 ms/ch] bit drs Function Hex Control xE x0C Manual timing register x30 3

4 Program example Condition 1: Initial setting [manual setting mode, low gain, Tint=00 (175 μs), integration time 546 ms/ch (0x0C30 is set in manual timing register)] Command ction Data body ck emark ddress call (0x2) S W 7-bit address egister call (0x00) Calls control byte egister write (0x84) DC reset, standby disabled ddress call (0x2) Sr W estart, address egister call (0x00) Calls control byte egister write (0x04) P DC reset disabled, bus release Wait longer than integration time (>2184 ms) ddress call (0x2) S W 7-bit address egister call (0x03) Calls output data byte ddress call (0x2) Sr Changes to read mode Data read out (: MS) X X X X X X X X Data read out (: LS) X X X X X X X X ed data output Data read out (: MS) X X X X X X X X Data read out (: LS) X X X X X X X X reen data output Data read out (: MS) X X X X X X X X Data read out (: LS) X X X X X X X X lue data output Data read out (Infrared: MS) X X X X X X X X Infrared data output Data read out (Infrared: LS) X X X X X X X X Ā P S=Start condition, Sr=estart condition, =cknowledge, =cknowledge by host, P=Stop condition, =ead mode (1), W=Write mode (0), Ā=not acknowledge Format S 0x2 (7 bits) W 0x00 0x84 Sr 0x2 (7 bits) W 0x00 0x04 P Wait S 0x2 (7 bits) W 0x03 Sr 0x2 (7 bits) P from master to slave from slave to master 4

5 Condition 2 [fixed period mode, high gain, Tint=01 (1.4 ms), integration time 1.4 ms/ch] Command ction Data body ck emark ddress call (0x2) S W 7-bit address egister call (0x00) Calls control byte egister write (0x89) DC reset, standby disabled ddress call (0x2) Sr W 7-bit address egister call (0x00) Calls control byte esistor write (0x09) P DC reset disabled, bus release Wait longer than integration time (> 5.6 ms). Within this period, repeat measurement is continued. ddress call (0x2) S W 7-bit address egister call (0x03) Calls output data byte ddress call (0x2) Sr Changes to read mode Data read out (: MS) X X X X X X X X Data read out (: LS) X X X X X X X X ed data output Data read out (: MS) X X X X X X X X Data read out (: LS) X X X X X X X X reen data output Data read out (: MS) X X X X X X X X Data read out (: LS) X X X X X X X X lue data output Data read out (Infrared: MS) X X X X X X X X Infrared data output Data read out (Infrared: LS) X X X X X X X X Ā P S=Start condition, Sr=estart condition, =cknowledge, =cknowledge by host, P=Stop condition, =ead mode(1), W=Write mode(0), Ā=not acknowledge Format S 0x2 (7 bits) W 0x00 0x89 Sr 0x2 (7 bits) W 0x00 0x09 P Wait S 0x2 (7 bits) W 0x03 Sr 0x2 (7 bits) P from master to slave from slave to master 5

6 Compensation method for sensitivity variation 1. Power on 2. Power on reset, initialization 3. DC reset enable, standby disable 4. Measurement condition setting ain, manual setting mode, integration time 5. DC reset disable 6. Measurement start (integration time) No Standby monitor = 1? Yes 7. Measurement end (integration time) 8. Data read out 9. Compensation Sensitivity variation can be decreased using the compensation coefficient which is calculated from the integration time measurement result. Explanation of compensation method is shown as follows. Integration time measurement method In case of integration time measurement, it is necessary to set manual setting mode. The integration time measurement starts after DC reset disabled. To measure the finishing integration time (measurement) Tmeas, check Standby monitor bit until it becomes to 1. Compensation method The sensitivity compensation that used integration time is as follows: K = Tset Tmeas S' = S K K : compensation coefficient Tset : integration time (setting) Tmeas : integration time (measurement) S : photo sensitivity (measurement) S : photo sensitivity (compensation) Measurement accuracy of integration time The measurement minimum resolution of Tmeas is defined by the looping duration (Tunit). In case of default setting, the Tset is 2184 ms and assuming the Tunit to 7.8 ms, the accuracy of integration time is calulated by following formula. Tunit Tset = 100 = 0.36% 2184 The specification of compensated sensitivity is defined as 0.36% accuracy. Spectral response Count value vs. illuminance (typical example) elative sensitivity (%) lue reen ed Infrared (Typ. Ta=25 C) Count value (counts) [Initial setting (integration time 546 ms/ch, low gain), light source] 100 k 10 k 1 k ed 9.48 counts/lx reen 7.61 counts/lx lue 3.35 counts/lx Infrared 1.66 counts/lx Wavelength (nm) KPIC0132E k 10 k 100 k Illuminance (Times) KPIC0130EC 6

7 lock diagram Infrared-cut filter DC Current - frequency converter Counter 16 egister I 2 C interface VDD SD SCL ND I Timer circuit SD: serial data SCL: serial clock KPICC0152E Timing chart of standby function Idd Current consumption Operating mode Standby mode Idds Integration time Time I 2 C command Initialization and measurement instruction eadout KPICC0158E Connection example Vbus 0.1 μf Vdd Vdd SCL ND SD p 3 kω d 100 Ω d 100 Ω p 3 kω Microcontroller Cd 30 pf Cd 30 pf KPICC0174ED 7

8 Dimensional outline (unit: mm) Index mark [Top view] 1.68 Photosensitive area [ottom view] Index mark [ecommend land pattern] Soldering mask opening (6 )ϕ ± Photosensitive surface 0.5 Photosensitive surface (6 )ϕ0.3 Solder bump Metal pad (6 )ϕ0.275 NSMD (non soldering mask defined) max Vdd NC ND SCL NC SD Tolerance unless otherwise noted: ±0.05 KPIC0081EC KPIC0081EC Details of photosensitive area (unit: μm) High gain mode Low gain mode KPICC0153E Note: When using this product, please request our technical information (S11059 series) and ensure appropriate design according to the information. 8

9 Standard packing specifications eel (conforms to JEIT ET-7200) Dimension Hub diameter Tape width Material Electrostatic characteristics 180 mm 60 mm 8 mm PS (polystyrene) - Embossed tape (unit: mm, material: PS, conductive) ϕ1.50 ± ± ± ± ± ± 0.05 ϕ0.50 ± ± ± ± ± 0.05 eel feed direction 1.45 ± 0.05 KPICC0196E Packing quantity 3000 pcs/reel Packing type eel and desiccant in moisture-proof packaging (vacuum-sealed) 9

10 Measured example of temperature profile with our hot-air reflow oven for product testing 300 C 260 C max. Temperature 217 C 200 C 150 C Preheat 160 s Soldering 100 s max. Time KPIC0168E This product supports lead-free soldering. fter unpacking, store it in an environment at a temperature of 30 C or less and a humidity of 60% or less, and perform soldering within 1 month. The effect that the product receives during reflow soldering varies depending on the circuit board and reflow oven that are used. efore actual reflow soldering, check for any problems by tesitng out the reflow soldering methods in advance. 10

11 Line-up of color sensors Type no. Photosensitive area (mm) S Photodiode ϕ2.0 S9702 S T S CT Digital S photo IC S C S DT /-03DS Type Photodiode Photodiode Photodiode Digital photo IC I 2 C compatible color sensor I 2 C compatible color sensor Package (mm) t 6 pin (filter 0.75 t ) t 4 pin (filter 0.75 t ) t CO (on-chip filter) t CO (on-chip filter) t 6 pin (filter 0.75 t ) t CO (on-chip filter) t 10 pin (on-chip filter) t WL-CSP (on-chip filter) * efer to the spectral response of each product s datasheet. Peak sensitivity wavelength (nm) I I * * Low Low Low Low I I 0.18 (/W) [λ=460 nm] 0.23 (/W) [λ=540 nm] 0.16 (/W) [λ=620 nm] 0.18 (/W) [λ=460 nm] 0.23 (/W) [λ=540 nm] 0.16 (/W) [λ=620 nm] 0.2 (/W) [λ=460 nm] 0.23 (/W) [λ=540 nm] 0.17 (/W) [λ=620 nm] 0.21 (/W) [λ=460 nm] 0.25 (/W) [λ=540 nm] 0.45 (/W) [λ=640 nm] I I 0.21 (LS/lx) 0.45 (LS/lx) 0.64 (LS/lx) 0.3 (LS/lx) 0.6 (LS/lx) 1.4 (LS/lx) 4.4 (count/lx) 8.3 (count/lx) 11.2 (count/lx) 3.0 (count/lx) 3.35 (count/lx) 7.61 (count/lx) 9.48 (count/lx) 1.66 (count/lx) Photosensitivity High High High High 1.9 (LS/lx) 4.1 (LS/lx) 5.8 (LS/lx) 2.6 (LS/lx) 5.3 (LS/lx) 12.9 (LS/lx) 44.8 (count/lx) 85.0 (count/lx) (count/lx) 30.0 (count/lx) 31.7 (count/lx) 76.2 (count/lx) 94.5 (count/lx) 15.3 (count/lx) Photo elated information Precautions Disclaimer Metal, ceramic, plastic package products Surface mount type products Information described in this material is current as of ugust, Product specifications are subject to change without prior notice due to improvements or other reasons. This document has been carefully prepared and the information contained is believed to be accurate. In rare cases, however, there may be inaccuracies such as text errors. efore using these products, always contact us for the delivery specification sheet to check the latest specifications. The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that one year period. However, even if within the warranty period we accept absolutely no liability for any loss caused by natural disasters or improper product use. Copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission. HMMTSU PHOTONICS K.K., Solid State Division Ichino-cho, Higashi-ku, Hamamatsu City, Japan, Telephone: (81) , Fax: (81) U.S..: Hamamatsu Corporation: 360 Foothill oad, ridgewater, N.J , U.S.., Telephone: (1) , Fax: (1) ermany: Hamamatsu Photonics Deutschland mbh: rzbergerstr. 10, D Herrsching am mmersee, ermany, Telephone: (49) , Fax: (49) France: Hamamatsu Photonics France S...L.: 19, ue du Saule Trapu, Parc du Moulin de Massy, Massy Cedex, France, Telephone: 33-(1) , Fax: 33-(1) United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin oad, Welwyn arden City, Hertfordshire L7 1W, United Kingdom, Telephone: (44) , Fax: (44) North Europe: Hamamatsu Photonics Norden : Torshamnsgatan Kista, Sweden, Telephone: (46) , Fax: (46) Italy: Hamamatsu Photonics Italia S.r.l.: Strada della Moia, 1 int. 6, rese (Milano), Italy, Telephone: (39) , Fax: (39) China: Hamamatsu Photonics (China) Co., Ltd.: 1201, Jiaming Center, No.27 Dongsanhuan eilu, Chaoyang District, eijing , China, Telephone: (86) , Fax: (86) Cat. No. KPIC1074E09 ug DN 11