ISL29102 Data Sheet July 15, 2010 FN6483.1 Low Power Ambient Light-to-Voltage Features Non-Linear Converter Square Root Voltage Output The ISL29102 is a low cost light-to-voltage silicon optical 0.3 lux to 10,000 lux Range sensor combining a photodiode array, a non-linear current 1.8V to 3.3V Supply Range amplifier and a micro-power op amp on a single monolithic IC. Similar to human eyes, the photodiode array has peak Close to Human Eye Spectral Response sensitivity at 550nm and spans from 400nm to 600nm, rejecting UV light and IR light. The input luminance range is Fast Response Time from 0.3 lux to 10,000 lux. Internal Temperature Compensation The integrated non-linear current amplifier boosts and Good IR Rejection converts the photodiode signal in a square root fashion, extending the light input dynamic range while maintaining Low Supply Current excellent sensitivity at dim conditions with low lux levels. The Operating Temperature Range -40C to +85C device consumes minimal power over a wide range of ambient lux levels because the current consumption ramps 6 Ld ODFN: 2mmx2.1mmx0.7mm at a square root fashion. A dark current compensation circuit Pb-Free (RoHS Compliant) minimizes the effect of temperature dependent leakage currents in the absence of light, improving the light sensitivity Applications at low lux levels while maintaining excellent sensitivity at low lux levels. The built-in 1A op amp gives the ISL29102 an Display and keypad dimming for: output voltage driving advantage for heavier loads. - Mobile devices: smart phone, PDA, GPS The ISL29102 is housed in an ultra compact 2mmx2.1mm - Computing devices: notebook PC, webpod ODFN plastic case surface mount package. Operation is - Consumer devices: LCD-TV, digital picture frame, digital rated from -40C to +85C. camera Ordering Information Industrial and medical light sensing PART NUMBER PACKAGE PKG. (Notes 2, 3) (Pb-Free) DWG. Related Literature See AN1422, Light Sensor Applications ISL29102IROZ-T7 (Note 1) 6 Ld ODFN L6.2x2.1 (Tape and Reel) Simplified Block Diagram ISL29102IROZ-EVALZ Evaluation Board VDD NOTES: 1 1. Please refer to TB347 for details on reel specifications. VOUT 2. These Intersil Pb-free plastic packaged products employ special - 6 CURRENT LIGHT DATA Pb-free material sets molding compounds/die attach materials + AMPLIFIER PROCESS and NiPdAu plate - e4 termination finish, which is RoHS OUTPUT CURRENT LIGHT INTENSITY compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb- PHOTODIODE free peak reflow temperatures that meet or exceed the Pb-free GND ARRAY requirements of IPC/JEDEC J STD-020. 2 3. For Moisture Sensitivity Level (MSL), please see device REXT 4 information page for ISL29102. For more information on MSL please see techbrief TB363. CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2008, 2010. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.ISL29102 Pinout ISL29102 (6 LD ODFN) TOP VIEW VDD 1 6 VOUT GND 2 5 NC PD 3 4 REXT NC Pin Descriptions PIN NUMBER PIN NAME PIN DESCRIPTION 1 VDD Supply (1.8V to 3.3V). 2 GND Ground 3 NC No connect 4 REXT Connected to an external resistor to GND setting the light-to-voltage scaling constant. 5 NC No connect 6 VOUT Voltage Output. - PD Thermal Pad. Thermal pad can be connected to GND or electrically isolated. FN6483.1 2 July 15, 2010