DATASHEET ISL29020 FN6505 Rev 1.00 A Low Power, High Sensitivity, Light-to Digital Sensor With I2C Interface August 20, 2009 The ISL29020 is a low power, high sensitivity, integrated light Features 2 sensor with I C (SMBus Compatible) interface. Its Low Power state-of-the-art photodiode array provides close-to human - 65A Max Operating Current eye response and good IR rejection. This ADC is capable of - 0.5A Max Shutdown Current rejecting 50Hz and 60Hz flicker caused by artificial light - Software Shutdown and Automatic Shutdown sources. The lux range select feature allows the user to Ideal Spectral Response program the lux range for optimized counts/lux. - Close to Human Eye Response In normal operation, typical power consumption 55A. In - Excellent IR and UV Rejection order to further minimize power consumption, two Easy to Use power-down modes have been provided. If polling is chosen - Simple Output Code Directly Proportional to lux over continuous measurement of light, the auto-power-down 2 -I C (SMBus Compatible) Output function shuts down the whole chip after each ADC - No Complex Algorithms Needed conversion for the measurement. The other power-down 2 - Variable Conversion Resolution up to 16-bits mode is controlled by software via the I C interface. The - Adjustable Sensitivity up to 65 Counts per lux power consumption can be reduced to less than 1A when - Works Under Various Light Sources, Including Sunlight powered down. 2 - Selectable Range (via I C) 2 Designed to operate on supplies from 2.25V to 3.3V with I C - Range 1 = 0.015 lux to 1,000 lux supply from 1.7V to 3.6V, the ISL29020 is specified for - Range 2 = 0.06 lux to 4,000 lux operation over the -40C to +85C ambient temperature range. - Range 3 = 0.24 lux to 16,000 lux Ordering Information - Range 4 = 0.96 lux to 64,000 lux - Temperature Compensated PART NUMBER PACKAGE PKG. - Integrated 50/60Hz Noise Rejection (Note) (Pb-Free) DWG. ISL29020IROZ-T7* 6 Ld ODFN L6.2x2.1 Small Form Factor ISL29020IROZ-EVALZ Evaluation Board (Pb-free) - 2.0mmx2.1mmx0.7mm 6 Ld ODFN Package *Please refer to TB347 for details on reel specifications. Additional Features 2 NOTE: These Intersil Pb-free plastic packaged products employ -I C and SMBus Compatible special Pb-free material sets molding compounds/die attach 2 - 1.7V to 3.6V Supply for I C Interface materials and NiPdAu plate - e4 termination finish, which is RoHS - 2.25V to 3.3V Supply compliant and compatible with both SnPb and Pb-free soldering - Address Selection Pin operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free Pb-Free (RoHS compliant) requirements of IPC/JEDEC J STD-020. Applications Block Diagram Display and keypad dimming for: VDD 1 - Mobile devices: smart phone, PDA, GPS - Computing devices: notebook PC, webpad - Consumer devices: LCD-TV, digital picture frame, digital PHOTODIODE COMMAND ARRAY REGISTER camera LIGHT INTEGRATING DATA Industrial and medical light sensing DATA ADC REGISTER PROCESS 5 SCL 2 EXT I C/SMBus SDA Pinout 6 TIMING IREF ISL29020 f OSC (6 LD ODFN) 16 TOP VIEW 2 COUNTER 3 2 4 VDD 1 6 SDA REXT GND A0 ISL29020 GND 2 5 SCL REXT 3 4 A 0 *EXPOSED PAD CAN BE CONNECTED TO GND OR ELECTRICALLY ISOLATED FN6505 Rev 1.00 Page 1 of 11 August 20, 2009 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