DATASHEET ISL29034 FN8370 Rev 2.00 Integrated Digital Light Sensor August 19, 2016 The ISL29034 is an integrated ambient and infrared Features 2 light-to-digital converter with I C (SMBus compatible) interface. Its Resolution . 16-bit ADC advanced self-calibrated photodiode array emulates human eye response with excellent IR rejection. The on-chip ADC is capable Wide dynamic range1: 4,200,000 of rejecting 50Hz and 60Hz flicker caused by artificial light Integrated noise reduction . 50/60Hz sources. The Lux range select feature allows users to program the Close to human eye response with excellent IR/UV rejection Lux range for optimized counts/Lux. Shutdown modes software and automatic For ambient light sensing, an internal 16-bit ADC has been designed based upon the charge-balancing technique. The Supply current (typical) . 57A ADC conversion time is nominally 105ms and is user Shutdown current (maximum) . 0.51A selectable from 11s to 105ms, depending on oscillator 2 I C (SMB compatible) power supply . 1.7V to 3.63V frequency and ADC resolution. In normal operation, typical current consumption is 57A. In order to further minimize Sensor power supply . 2.25V to 3.63V power consumption, two power-down modes have been Operating temperature range . -40C to +85C provided. If polling is chosen over continuous measurement of Small form factor package . 4 Ld 1.5x1.3x0.75 ODFN light, the auto power-down function shuts down the whole chip after each ADC conversion for the measurement. The other 2 Applications power-down mode is controlled by software via the I C interface. The power consumption can be reduced to less than Mobile devices: smart phone, PDA, GPS 0.3A when powered down. Computing devices: notebook PC, MacBook, tablets The ISL29034 supports a software brownout condition Consumer devices: LCD-TV, digital picture frame, digital camera detection. The device powers up with the brownout bit asserted 2 Industrial and medical light sensing until the host clears it through the I C interface. Designed to 2 operate on supplies from 2.25V to 3.63V with an I C supply from Related Literature 1.7V to 3.63V, the ISL29034 is specified for operation across the -40C to +85C ambient temperature range. AN1591, Evaluation Hardware/Software Manual for ALS and Proximity Sensor TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS NUMBER OF PART NUMBER ALS SENSING INTERRUPT PIN PINS ISL29034 Yes No 4 Ld ISL29035 Yes Yes 6 Ld 1.2 100 V VDD PULLUP DD 1.0 1F HUMAN EYE 1 4.7k 4.7k 0.8 AMBIENT LIGHT SENSOR VDD 0.6 SDA 4 SDA 0.4 ISL29034 MCU SCL 3 SCL 0.2 GND 0 2 300 400 500 600 700 800 900 1000 1100 WAVELENGTH (nm) FIGURE 2. NORMALIZED SPECTRAL RESPONSE FOR AMBIENT FIGURE 1. ISL29034 TYPICAL APPLICATION DIAGRAM LIGHT SENSING FN8370 Rev 2.00 Page 1 of 14 August 19, 2016ISL29034 Block Diagram V DD 1 IREF COMMAND f OSC REGISTER R 3 SCL 500k 2 CMD I C/SMB PHOTODIODE Register 4 SDA ARRAY LIGHT INTEGRATING DATA DATA ADC REGISTER PROCESS ISL29034 2 GND FIGURE 3. BLOCK DIAGRAM Pin Configuration Pin Descriptions ISL29034 (4 LD ODFN) PIN TOP VIEW NUMBER PIN NAME DESCRIPTION 1 VDD Positive supply VDD 1 4 SDA 2GND Ground pin 2 3SCLI C serial clock. 2 3 SCL GND 2 4SDAI C serial data. Ordering Information PART NUMBER TEMP RANGE TAPE AND REEL PACKAGE PKG. (Notes 1, 2, 3) (C) (UNITS) (RoHS COMPLIANT) DWG. ISL29034IROZ-T7 -40 to +85 3k 4 Ld ODFN L4.1.5x1.3 ISL29034IROZ-EVALZ Evaluation Board NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL29034. For more information on MSL please see tech brief TB477. FN8370 Rev 2.00 Page 2 of 14 August 19, 2016