TSL254R LIGHT-TO-VOLTAGE OPTICAL SENSOR TAOS071C SEPTEMBER 2007 PACKAGE S PACKAGE SM Monolithic Silicon IC Containing SIDELOOKER SURFACE MOUNT Photodiode, Operational Amplifier, and (FRONT VIEW) SIDELOOKER Feedback Components (FRONT VIEW) Converts Light Intensity to a Voltage Irradiance Responsivity, Typically 2 9 mV/( W/cm ) at = 635 nm p 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 1 2 3 RoHS Compliant (LF Package Only) GND V OUT DD 1 2 3 GND V OUT DD 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 PACKAGE LEADS PACKAGE DESIGNATOR ORDERING NUMBER A TSL254R 0C to 70C 3-lead Sidelooker S TSL254R TSL254R 0C to 70C 3-lead Sidelooker Lead (Pb) Free S TSL254R LF TSL254R 0C to 70C 3-lead Surface-Mount Sidelooker Lead (Pb) Free SM TSL254RSM LF Terminal Functions TERMINAL DESCRIPTIONDESCRIPTION NAME NO. GND 1 Ground (substrate). All voltages are referenced to GND. OUT 3 Output voltage V 2 Supply voltage DD Copyright 2007, TAOS Inc. The LUMENOLOGY Company Texas Advanced Optoelectronic Solutions Inc. 1001 Klein Road Suite 300 Plano, TX 75074 (972) 673-0759 www.taosinc.com 1TSL254R LIGHT-TO-VOLTAGE OPTICAL SENSOR TAOS071C SEPTEMBER 2007 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, V (see Note 1) . 6 V DD Output current, I 10 mA O Duration of short-circuit current at (or below) 25C (see Note 2) . 5 s Operating free-air temperature range, T 25C to 85C A Storage temperature range, T 25C to 85C stg Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (S Package) 260C Reflow solder, in accordance with J-STD-020C or J-STD-020D (SM Package) . 260C 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. 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 2.7 5.5 V DD Operating free-air temperature, T 0 70 C A Electrical Characteristics at V = 5 V, T = 25C, p = 635 nm, R = 10 k (unless otherwise noted) DD A L (see Notes 3, 4, and 5) TSL254R TEST TEST PPARAMETERARAMETER UNITUNIT CONDITIONS MIN TYP MAX V Dark voltage E = 0 0 5 10 mV D e V Maximum output voltage V = 4.5 V 3.0 3.3 V OM DD 2 V Output voltage E = 222 W/cm 1.5 2 2.5 V O e 2 mV/C VV = 2 V 25 = 2 V 25C,C, OO TTemperature coefemperature coefficient of output voltage (Vficient of output voltage (V )) vo O T = 0C to 70C (see Note 6) A 0.1 %/C 22 RR Irradiance responsivityIrradiance responsivity See Notes 5 and 7See Notes 5 and 7 99 mV/(mV/(W/cmW/cm )) e 2 I Supply current E = 222 W/cm 1.1 1.7 mA DD e NOTES: 3. Measurements are made with R = 10 k between output and ground. L 4. Optical measurements are made using small-angle incident radiation from an LED optical source. 5. The input irradiance E is supplied by an AlInGaP LED with peak wavelength = 635 nm e p 6. The temperature coefficient of output voltage measurement is made by adjusting irradiance such that V is approximately 2 V at O 25C and then with irradiance held constant, measuring V while varying the temperature between 0C and 70C. O 7. Irradiance responsivity is characterized over the range V = 0.05 to 2.9 V. The best-fit straight line of Output Voltage V versus O O irradiance E over this range will typically have a positive extrapolated V value for E = 0. e O e Dynamic Characteristics at V = 5 V, T = 25C, p = 635 nm, R = 10 k (see Figure 1) DD A L TSL254R PPARAMETERARAMETER TESTTEST CONDITIONS CONDITIONS UNITUNIT MIN TYP MAX t Output pulse rise time V = 2 V 2.5 s r O(peak) t Output pulse fall time V = 2 V 2.5 s f O(peak) E = 0, V = V f = 1 kHz 1 e O D E = 0, V = V f = 10 kHz 1 e O D VV Output noise voltageOutput noise voltage V/V/HzHz n V = 2 V f = 1 kHz 1.5 O V = 2 V f = 10 kHz 1.5 O Copyright 2007, TAOS Inc. The LUMENOLOGY Company 2 www.taosinc.com