V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS Optoelectronics - Ambient Light Sensors; Save Power, Save People Sensors Ambient Light Sensors Ambient light sensors are used to detect light or brightness in a manner similar to the human eye. They are most commonly found in industrial lighting, consumer electronics, and automotive systems, where they allow settings to be adjusted automatically in response to changing ambient light conditions. By turning on, turning off, or adjusting features, ambient light sensors can conserve battery power or provide extra safety while eliminating the need for manual adjustments. RESOURCES • Complete listing of Ambient Light Sensors: http://www.vishay.com/photo-detectors/ ambient-light-sensor/ • Complete listing of photodiode products: http://www.vishay.com/photo-detectors/ photodie-out/ • Complete listing of phototransistor products: http://www.vishay.com/photo-detectors/ phototrans-out/ • Optical Sensors portfolio: http://www.vishay.com/optical-sensors/ • Optoelectronics portfolio: http://www.vishay.com/optoelectronics/ • For technical questions, contact [email protected] • Sales contacts: http://www.vishay.com/doc?99914 One of the World’s Largest Manufacturers of Discrete Semiconductors and Passive Components Product Literature 1/4 VMN-PL0366-1403 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS Illuminance Illuminance is the measure of the intensity of light incident on a surface and can be correlated to the brightness perceived by the human eye. In the visible range, it is measured in units called “lux”. Light sources with the same lux measurement appear to be equally bright. Light Source Illuminance (Lux) Street Light 20 Dusk 1 to 100 Living Room 50 to 200 Office 200 to 600 Operating Room 5 k to 10 k Cloudy 2 k to 10 k Hazy 25 k to 50 k Bright Sun 50 k to 100 k Spectral Sensitivity In the diagram below, the incandescent light and sunlight have been scaled to have the same lux measurement. In the infrared region, the intensity of the incandescent light is significantly higher. A standard silicon photodetector is much more sensitive to infrared light than visible light. Using it to measure ambient light will result in serious deviations between the lux measurements of different light sources and human-eye perception. Using Vishay’s ambient light sensors will solve this problem because they are most sensitive to the visible part of the spectrum. 1.0 The human eye can see light with wavelengths from 380 nm to 780 nm. Vishay’s ambient light sensors closely match this range of sensitivity. 0.8 0.6 Linearity 0.4 The response of an ambient light sensor should be linear. Vishay’s ambient light sensors are linear from 10 lux to 100 klx. Photodiode output typically requires amplification while phototransistor output Spectral Sensitivity may not. 0.2 0.0 0 500 1.0 1000 0.8 Responsivity Human Eye Silicon Photodiode Incandescent light Sunlight (5800 K) TEMT6200FX01 Human Eye 0.6 1500 Wavelength (nm) Intensity 0.4 0.2 0.0 1000 400 600 800 1000 Wavelength (nm) Output Variability Vishay offers phototransistor- and photodiode-based ambient light sensors. For a given irradiance, phototransistors may show lot-to-lot variability of the output current caused by variability of the photosensitivity and gain. In most applications, this is not a problem. The lot-to-lot variability of photodiodes is significantly lower because it is caused only by the variability of the photosensitivity. A digital photodiode-based ambient light sensor complements Vishys portfolio. It has an excellent V(l) matched spectral responsitivity and provides a high-resolution 16-bit I2C output signal. Product Literature 2/4 Ira — Photocurrent (µA) Relative Sensitivity Optoelectronics - Ambient Light Sensors; Save Power, Save People Sensors TEMD5510FX01 100 10 1 0.1 10 20080 CIE Illuminant A VR = 5 V 100 1000 10000 Ev — Illuminance (Ix) Reverse Light Current vs. Irradiance VMN-PL0366-1403 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS Optoelectronics - Ambient Light Sensors; Save Power, Save People Sensors Mounting Size (mm) Peak Wavelength (nm) Bandwidth (nm) Angle of Half Sensitivity (±*) Light Current1 Standard A (μA) Light Current2 Fluorescent (μA) TEMD6010FX01 SMD 2.0 x 4.0 x 1.0 540 430 - 610 60 0.04 0.03 TEMD5510FX01 SMD 4.2 x 5.0 x 1.1 540 430 - 610 65 1.00 0.70 TEMD6200FX01 SMD 1.2 x 2.0 x 0.85 540 430 - 610 60 0.04 0.03 Leaded TO5 - 8 mm 565 420 - 675 50 0.9 0.75 Part Number Photodiode Output BPW21R Phototransistor Output TEMT6200FX01 SMD 1.2 x 2.0 x 0.85 550 450 - 610 60 12 7 TEMT6000X01 SMD 2.0 x 4.0 x 1.0 570 430 - 800 60 50 21 TEPT5700 Leaded 5 mm, flat top 570 430 - 800 50 75 31 TEPT5600 Leaded 5 mm 570 430 - 800 20 350 145 TEPT4400 Leaded 3 mm 570 430 - 800 30 200 83 1 Ev = 100 lux, VCE = 5 V, CIE Illuminant A, typical 2 Ev = 100 lux, VCE = 5 V, e.g., Sylvania color abbrev. D830, typical Part number Mounting Size (mm) SMD 2.0 x 2.0 x 0.85 Operating Ambient light I2C bus voltage voltage range range (lx) range (V) (V) Ambient light resolution (lx) Output code 0.002 16-bit, I2C I2C Output VEML6030X013 3 0 to 7200 2.3 to 3.6 1.7 to 5.0 Pending release F VEML6030X01 Part numbers with an F contain an infrared filtering epoxy to further improve the ambient light sensing performance TEMD5510FX01 Product Literature TEMT6200FX01 TEMD6200FX01 X01 TEMD6010FX01 TEMT6000X01 3/4 Part numbers with an X01 are qualified to the AEC Q101 standard and support operating temperatures from - 40 °C to + 100 °C TEPT5600 TEPT4400 TEPT5700 BPW21R VMN-PL0366-1403 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . OPTOELECTRONICS Optoelectronics - Ambient Light Sensors; Save Power, Save People Sensors WORLDWIDE SALES CONTACTS THE AMERICAS EUROPE UNITED STATES GERMANY VISHAY AMERICAS ONE GREENWICH PLACE SHELTON, CT 06484 UNITED STATES PH: +1-402-563-6866 FAX: +1-402-563-6296 VISHAY ELECTRONIC GMBH DR.-FELIX-ZANDMAN-PLATZ 1 95100 SELB GERMANY PH: +49-9287-71-0 FAX: +49-9287-70435 ASIA FRANCE SINGAPORE VISHAY INTERTECHNOLOGY ASIA PTE LTD. 37A TAMPINES STREET 92 #07-00 SINGAPORE 528886 PH: +65-6788-6668 FAX: +65-6788-0988 VISHAY S.A. 199, BD DE LA MADELEINE 06003 NICE, CEDEX 1 FRANCE PH: +33-4-9337-2727 FAX: +33-4-9337-2726 P.R. CHINA UNITED KINGDOM VISHAY CHINA CO., LTD. 15D, SUN TONG INFOPORT PLAZA 55 HUAI HAI WEST ROAD SHANGHAI 200030 P.R. CHINA PH: +86-21-5258 5000 FAX: +86-21-5258 7979 VISHAY LTD. SUITE 6C, TOWER HOUSE ST. CATHERINE’S COURT SUNDERLAND ENTERPRISE PARK SUNDERLAND SR5 3XJ UNITED KINGDOM PH: +44-191-516-8584 FAX: +44-191-549-9556 JAPAN VISHAY JAPAN CO., LTD. SHIBUYA PRESTIGE BLDG. 4F 3-12-22, SHIBUYA SHIBUYA-KU TOKYO 150-0002 JAPAN PH: +81-3-5466-7150 FAX: +81-3-5466-7160 Product Literature 4/4 VMN-PL0366-1403 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000