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TSL254r light-to-voltage optical sensor taos071c ? september 2007 1 the lumenology company copyright 2007, taos inc. www.taosinc.com monolithic silicon ic containing photodiode, operational amplifier, and feedback components converts light intensity to a voltage irradiance responsivity, typically 9 mv/( w/cm 2 ) at p = 635 nm compact 3-lead clear plastic package single voltage supply operation low dark (offset) voltage....10 mv max low supply current......1.1 ma typical wide supply-voltage range.... 2.7 v to 5.5 v replacement for TSL254 rohs compliant (? lf package only) description the TSL254r is a light-to-voltage optical sensor combining a photodiode and a transimpedance amplifier (feedback resistor = 1 m) on a single monolithic ic. output voltage is directly proportional to the light intensity (irradiance) on the photodiode. the device has improved amplifier offset-voltage stability and low power consumption and is supplied in a 3-lead clear plastic sidelooker package with an integral lens. when supplied in the lead (pb) free package, the device is rohs compliant. functional block diagram voltage output + ? available options device t a package ? leads package designator ordering number TSL254r 0 c to 70 c 3-lead sidelooker s TSL254r TSL254r 0 c to 70 c 3-lead sidelooker ? lead (pb) free s TSL254r ? lf TSL254r 0 c to 70 c 3-lead surface-mount sidelooker ? lead (pb) free sm TSL254rsm ? lf terminal functions terminal description name no. description gnd 1 ground (substrate). all voltages are referenced to gnd. out 3 output voltage v dd 2 supply voltage texas advanced optoelectronic solutions inc. 1001 klein road suite 300 plano, tx 75074 (972) 673-0759 package s sidelooker (front view) 1 gnd 2 v dd 3 out package sm surface mount sidelooker (front view) 1 gnd 2 v dd 3 out ams ag technical content still valid
TSL254r light-to-voltage optical sensor taos071c ? september 2007 2 copyright 2007, taos inc. the lumenology company www.taosinc.com absolute maximum ratings over operating free-air temperature range (unless otherwise noted) ? supply voltage, v dd (see note 1) 6 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . output current, i o 10 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . duration of short-circuit current at (or below) 25 c (see note 2) 5 s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . operating free-air temperature range, t a ? 25 c to 85 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg ? 25 c to 85 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (s package) 260 c . . . . . . . . . . . . . . . . . . . . reflow solder, in accordance with j-std-020c or j-std-020d (sm package) 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. notes: 1. all voltages are with respect to gnd. 2. output may be shorted to supply. recommended operating conditions min nom max unit supply voltage, v dd 2.7 5.5 v operating free-air temperature, t a 0 70 c electrical characteristics at v dd = 5 v, t a = 25 c, p = 635 nm, r l = 10 k (unless otherwise noted) (see notes 3, 4, and 5) parameter test TSL254r unit parameter test conditions min typ max unit v d dark voltage e e = 0 0 5 10 mv v om maximum output voltage v dd = 4.5 v 3.0 3.3 v v o output voltage e e = 222 w/cm 2 1.5 2 2.5 v temperature coefficient of output voltage (v ) v o = 2 v @ 25 c, 2 mv/ c vo temperature coefficient of output voltage (v o ) v o = 2 v @ 25 c , t a = 0 c to 70 c (see note 6) 0.1 %/ c r irradiance responsivity see notes 5 and 7 9 mv/( w/cm 2 ) r e irradiance responsivity see notes 5 and 7 9 mv/( w/cm 2 ) i dd supply current e e = 222 w/cm 2 1.1 1.7 ma notes: 3. measurements are made with r l = 10 k between output and ground. 4. optical measurements are made using small-angle incident radiation from an led optical source. 5. the input irradiance e e is supplied by an al i ngap led with peak wavelength p = 635 nm 6. the temperature coefficient of output voltage measurement is made by adjusting irradiance such that v o is approximately 2 v at 25 c and then with irradiance held constant, measuring v o while varying the temperature between 0 c and 70 c. 7. irradiance responsivity is characterized over the range v o = 0.05 to 2.9 v. the best-fit straight line of output voltage v o versus irradiance e e over this range will typically have a positive extrapolated v o value for e e = 0. dynamic characteristics at v dd = 5 v, t a = 25 c, p = 635 nm, r l = 10 k (see figure 1) parameter test conditions TSL254r unit parameter test conditions min typ max unit t r output pulse rise time v o(peak) = 2 v 2.5 s t f output pulse fall time v o(peak) = 2 v 2.5 s e e = 0, v o = v d f = 1 khz 1 v output noise voltage e e = 0, v o = v d f = 10 khz 1 v/ hz v n output noise voltage v o = 2 v f = 1 khz 1.5 v/ hz v o = 2 v f = 10 khz 1.5 ams ag technical content still valid
TSL254r light-to-voltage optical sensor taos071c ? september 2007 3 the lumenology company copyright 2007, taos inc. www.taosinc.com parameter measurement information voltage waveform test circuit input e e 10% 90% output (see note b) t r TSL254r r l v dd 2 1 3 + ? output 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 = 635 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. figure 1. switching times ams ag technical content still valid
TSL254r light-to-voltage optical sensor taos071c ? september 2007 4 copyright 2007, taos inc. the lumenology company www.taosinc.com typical characteristics output voltage vs irradiance figure 2 0.01 0.1 1 10 0.1 1 10 100 1000 e e ? irradiance ? w/cm 2 v dd = 5 v p = 635 nm r l = 10 k t a = 25 c output voltage (v o ? v d ) ? v figure 3 300 400 500 600 700 1000 800 900 1100 ? wavelength ? nm relative responsivity 0 0.2 0.4 0.6 0.8 1.0 1.2 photodiode spectral responsivity t a = 25 c figure 4 maximum output voltage vs supply voltage v dd ? supply voltage ? v r l = 10 k t a = 25 c 0 1 2 3 4 5 2.5 3 3.5 4 4.5 5 5.5 v om ? maximum output voltage ? v figure 5 012 34 v o ? output voltage ? v supply current vs output voltage v dd = 5 v r l = 10 k t a = 25 c i dd ? supply current ? ma 0.4 0.6 0.8 1 1.2 1.4 ams ag technical content still valid
TSL254r light-to-voltage optical sensor taos071c ? september 2007 5 the lumenology company copyright 2007, taos inc. www.taosinc.com typical characteristics ? angular displacement TSL254r 80 60 40 20 0 80 60 40 20 optical axis normalized output voltage vs angular displacement figure 6 0 0.2 0.4 0.6 0.8 1 normalized output voltage ams ag technical content still valid
TSL254r light-to-voltage optical sensor taos071c ? september 2007 6 copyright 2007, taos inc. the lumenology company www.taosinc.com application information pcb pad layout suggested pcb pad layout guidelines for the sm surface mount package are shown in figure 7. 3.2 1.0 1.0 1.0 1.0 1.0 notes: a. all linear dimensions are in millimeters. b. this drawing is subject to change without notice. figure 7. suggested sm package pcb layout ams ag technical content still valid
TSL254r light-to-voltage optical sensor taos071c ? september 2007 7 the lumenology company copyright 2007, taos inc. www.taosinc.com mechanical information the device is supplied in a clear plastic three-lead package (s). the integrated photodiode active area is typically 1,0 mm 2 (0.0016 in 2 ). package s plastic single-in-line side-looker package 1.64 2.60 2.30 4.60 r 0.90 1.80 0.42 1 2 2 0.47 typ top view side view front view 0.42 1.56 14.86 0.50 4.60 0.15 note b lead free available pb notes: a. all linear dimensions are in millimeters; tolerance is 0.25 mm unless otherwise stated. b. dimension is to center of lens arc, which is located below the package face. c. the integrated photodiode active area is typically located in the center of the lens and 0.97 mm below the top of the lens su rface. d. index of refraction of clear plastic is 1.55. e. lead finish for TSL254r solder dipped, 63% sn/37% pb. lead finish for TSL254r ? lf: solder dipped, 100% sn. f. this drawing is subject to change without notice. figure 8. package s ? single-in-line side-looker package configuration ams ag technical content still valid
TSL254r light-to-voltage optical sensor taos071c ? september 2007 8 copyright 2007, taos inc. the lumenology company www.taosinc.com mechanical data package sm plastic surface mount side-looker package 1.64 2.60 2.30 4.60 r 0.90 1.80 0.42 1.00 0.47 typ top view side view front view 0.42 5.73 0.50 4.60 0.15 note b 2.59 0.62 0.10 1.97 0.62 +0.10 ? 0.15 lead free pb 2 2 notes: a. all linear dimensions are in millimeters; tolerance is 0.25 mm unless otherwise stated. b. dimension is to center of lens arc, which is located below the package face. c. the integrated photodiode active area is typically located in the center of the lens and 0.97 mm below the top of the lens su rface. d. index of refraction of clear plastic is 1.55. e. lead finish for TSL254rsm ? lf: solder dipped, 100% sn. f. this drawing is subject to change without notice. figure 9. package sm ? surface mount side-looker package configuration ams ag technical content still valid
TSL254r light-to-voltage optical sensor taos071c ? september 2007 9 the lumenology company copyright 2007, 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 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
TSL254r light-to-voltage optical sensor taos071c ? september 2007 10 copyright 2007, taos inc. the lumenology company www.taosinc.com ams ag technical content still valid

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