VEML6070 www.vishay.com Vishay Semiconductors 2 UV A Light Sensor with I C Interface FEATURES Package type: surface mount Dimensions (L x W x H in mm): 2.35 x 1.8 x 1.0 Integrated modules: ultraviolet sensor (UV), and signal conditioning IC Converts solar UV light intensity to digital data TM Excellent UV sensitivity and linearity via Filtron technology Excellent performance of UV radiation measurement under long time solar UV exposure Excellent temperature compensation DESCRIPTION High dynamic detection resolution VEML6070 is an advanced ultraviolet (UV) light sensor with 2 Standard I C protocol interface 2 I C protocol interface and designed by the CMOS process. 2 Support acknowledge feature (ACK) It is easily operated via a simple I C command. The active acknowledge (ACK) feature with threshold windows setting Immunity on fluorescent light flicker software shutdown allows the UV sensor to send out a UVI alert message. mode control Under a strong solar UVI condition, the smart ACK signal Package: OPLGA can be easily implemented by the software programming. Temperature compensation: -40 C to +85 C VEML6070 incorporates a photodiode, amplifiers, and Floor life: 168 h, MSL 3, according to J-STD-020 analog / digital circuits into a single chip. VEML6070s 2 TM Output type: I C bus adoption of Filtron UV technology provides the best spectral sensitivity to cover UV spectrum sensing. It has an Operation voltage: 2.7 V to 5.5 V excellent temperature compensation and a robust refresh Material categorization: for definitions of compliance rate setting that does not use an external RC low pass filter. please see www.vishay.com/doc 99912 VEML6070 has linear sensitivity to solar UV light and is easily adjusted by an external resistor. Software shutdown APPLICATIONS mode is provided, which reduces power consumption to be Solar UV indicator less than 1 A. VEML6070s operating voltage ranges from Cosmetic / outdoor sport handheld product 2.7 V to 5.5 V. Consumer products PRODUCT SUMMARY 2 OPERATING I C BUS RANGE OF SPECTRAL PEAK SENSITIVITY PART NUMBER VOLTAGE RANGE VOLTAGE RANGE BANDWIDTH OUTPUT CODE 0.5 (nm) (V) (V) (nm) 2 VEML6070 2.7 to 5.5 1.7 to 5.5 355 20 16 bit, I C Note (1) 2 Adjustable through I C interface ORDERING INFORMATION (1) ORDERING CODE PACKAGING VOLUME REMARKS VEML6070 Tape and reel MOQ: 2500 pcs 2.35 mm x 1.8 mm x 1.0 mm Note (1) MOQ: minimum order quantity ABSOLUTE MAXIMUM RATINGS (T = 25 C, unless otherwise specified) amb PARAMETER TEST CONDITION SYMBOL MIN. MAX. UNIT Supply voltage V 06.0 V DD Operation temperature range T -40 +85 C amb Rev. 1.6, 31-Jul-15 Document Number: 84277 1 For technical questions, contact: sensorstechsupport vishay.com 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 VEML6070 www.vishay.com Vishay Semiconductors RECOMMENDED OPERATING CONDITIONS (T = 25 C, unless otherwise specified) amb PARAMETER TEST CONDITION SYMBOL MIN. MAX. UNIT Supply voltage V 2.7 5.5 V DD Operation temperature range T -40 +85 C amb 2 I C bus operating frequency f 10 400 kHz (I2CCLK) PIN DESCRIPTIONS PIN ASSIGNMENT SYMBOL TYPE FUNCTION 1 GND I Power supply ground, all voltage are reference to GND 2 ACK O (open drain) Acknowledge pin 2 3 SDA I / O (open drain) I C digital serial data output to the host 4 SET Light reading adjustment, connect a resistor to GND 2 5SCLI I C digital serial clock input from the host 6V I Supply voltage DD BLOCK DIAGRAM VEML6070 GND 1 6 V DD Temperature sensor UV-PD Low pass filter ACK 2 5 SCL Timing controller SDA 3 4 RSET Oscillator BASIC CHARACTERISTICS (T = 25 C, unless otherwise specified) amb PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT Supply operation voltage V 2.7 - 5.5 V DD (1)(2) Supply current R = 240 k I - 100 250 A SET DD Logic high V 1.5 - V IH DD 2 (1)(2) I C signal input V Logic low V -- 0.8 IL Peak sensitivity wavelength - 355 - nm p Range of spectral sensitivity 320 - 410 nm 0.1 (3) 2 UVA sensitivity R = 240 k, I = 1T -5- W/cm /step SET T (3) 2 Maximum UVA detection power R = 240 k, I = 1T - - 328 mW/cm SET T (1) Dark offset R = 240 k, I = 1T 015 steps SET T (1)(4) Output offset R = 240 k, I = 1T -2- steps SET T (1) Shutdown current Light condition = dark I - 1 15 A DD Notes (1) Test condition: V = 3.3 V, temperature: 25C DD (2) Light source: solar light source (3) Test using 365 nm UVA LED (4) Ambient light intensity = 500 lx Rev. 1.6, 31-Jul-15 Document Number: 84277 2 For technical questions, contact: sensorstechsupport vishay.com 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 Output buffer 2 I C interface