ISL29020 Data Sheet August 20, 2009 FN6505.1 A Low Power, High Sensitivity, Light-to Features 2 Digital Sensor With I C Interface Low Power The ISL29020 is a low power, high sensitivity, integrated light - 65A Max Operating Current 2 sensor with I C (SMBus Compatible) interface. Its - 0.5A Max Shutdown Current state-of-the-art photodiode array provides close-to human - Software Shutdown and Automatic Shutdown eye response and good IR rejection. This ADC is capable of Ideal Spectral Response rejecting 50Hz and 60Hz flicker caused by artificial light - Close to Human Eye Response sources. The lux range select feature allows the user to - Excellent IR and UV Rejection program the lux range for optimized counts/lux. Easy to Use In normal operation, typical power consumption 55A. In - Simple Output Code Directly Proportional to lux 2 order to further minimize power consumption, two -I C (SMBus Compatible) Output power-down modes have been provided. If polling is chosen - No Complex Algorithms Needed over continuous measurement of light, the auto-power-down - Variable Conversion Resolution up to 16-bits function shuts down the whole chip after each ADC - Adjustable Sensitivity up to 65 Counts per lux conversion for the measurement. The other power-down - Works Under Various Light Sources, Including Sunlight 2 2 mode is controlled by software via the I C interface. The - Selectable Range (via I C) power consumption can be reduced to less than 1A when - Range 1 = 0.015 lux to 1,000 lux powered down. - Range 2 = 0.06 lux to 4,000 lux 2 - Range 3 = 0.24 lux to 16,000 lux Designed to operate on supplies from 2.25V to 3.3V with I C - Range 4 = 0.96 lux to 64,000 lux supply from 1.7V to 3.6V, the ISL29020 is specified for - Temperature Compensated operation over the -40C to +85C ambient temperature range. - Integrated 50/60Hz Noise Rejection Ordering Information Small Form Factor PART NUMBER PACKAGE PKG. - 2.0mmx2.1mmx0.7mm 6 Ld ODFN Package (Note) (Pb-Free) DWG. Additional Features ISL29020IROZ-T7* 6 Ld ODFN L6.2x2.1 2 -I C and SMBus Compatible ISL29020IROZ-EVALZ Evaluation Board (Pb-free) 2 - 1.7V to 3.6V Supply for I C Interface *Please refer to TB347 for details on reel specifications. - 2.25V to 3.3V Supply NOTE: These Intersil Pb-free plastic packaged products employ - Address Selection Pin special Pb-free material sets molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS Pb-Free (RoHS compliant) compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free Applications peak reflow temperatures that meet or exceed the Pb-free Display and keypad dimming for: requirements of IPC/JEDEC J STD-020. - Mobile devices: smart phone, PDA, GPS Block Diagram - Computing devices: notebook PC, webpad VDD - Consumer devices: LCD-TV, digital picture frame, digital 1 camera Industrial and medical light sensing PHOTODIODE COMMAND ARRAY REGISTER Pinout LIGHT INTEGRATING DATA DATA ADC REGISTER ISL29020 PROCESS 5 SCL (6 LD ODFN) 2 EXT I C/SMBus SDA 6 TOP VIEW TIMING IREF f OSC VDD 1 6 SDA 16 2 COUNTER GND 2 5 SCL 3 2 4 REXT GND A0 REXT 3 4 A 0 ISL29020 *EXPOSED PAD CAN BE CONNECTED TO GND OR ELECTRICALLY ISOLATED CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Copyright Intersil Americas LLC 2008, 2009. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. MODE GAIN/RANGE INT TIME SHDNISL29020 Absolute Maximum Ratings (T = +25C) Thermal Information A V Supply Voltage between V and GND . 3.6V Thermal Resistance (C/W) DD DD JA 2 I C Bus Pin Voltage (SCL, SDA) . -0.2V to 3.6V 6 Ld ODFN 88 2 I C Bus Pin Current (SCL, SDA) <10mA Maximum Die Temperature . +90C REXT, A0 Pin Voltage . -0.2V to V DD Storage Temperature -40C to +100C ESD Rating Operating Temperature .-40C to +85C Human Body Model .2kV Pb-Free Reflow Profile .see link below