EVALUATION KIT AVAILABLE MAX44000 Ambient and Infrared Proximity Sensor General Description Features The MAX44000 combines a wide-dynamic range ambient S Tiny, 2mm x 2mm x 0.6mm UTDFN-Opto Package light sensor with an integrated infrared proximity sensor. The S V = 1.7V to 3.6V DD IC is a perfect solution for touch-screen portable devices. S Low-Power Operation The IC can consume as low as 11A (time averaged) in 5A in Ambient Mode ambient light sensing plus proximity sensing, including 7A in Ambient Plus Proximity Mode external IR LED current. 70A in Ambient Plus Proximity Mode, The on-chip ambient sensor has the ability to make wide Including 100mA LED Current dynamic range 0.03 lux to 65,535 lux measurements. An S Excellent Light Source Matching on-chip IR proximity detector is matched with an inte- Programmable Green and IR Channel Gains grated IR LED driver. All readings are available on an S Integrated Single-Pulse IR LED Driver 2 I C communication bus. A programmable interrupt pin 10mA to 110mA Programmable Range minimizes the need to poll the device for data, freeing Internal Ambient Cancellation up microcontroller resources, reducing system software S -40NC to +105NC Temperature Range overhead, and ultimately, reducing power consumption. The IC is designed to drive an external IR LED and can operate from a V of 1.7V to 3.6V. It consumes just 5A Ordering Information DD operating current when only the ambient light sensor is PART TEMP RANGE PIN-PACKAGE enabled and 7A when the proximity receiver and driver MAX44000GDT+ -40NC to +105NC 6 OTDFN-EP* are enabled. +Denotes a lead(Pb)-free/RoHS-compliant package. Applications *EP = Exposed pad. Smartphones Accessories Typical Application Circuit appears at end of data sheet. Industrial Sensors Presence Detection Simplified Block Diagram Functional Diagrams V DD V LED V DD MICROCONTROLLER ALS VIS + IR 14-BIT PGA SDA (ALS) MAX44000 SCL IR LED ALS IR (ALS) PGA 2 I C INT 14-/8-BIT GND AMBIENT PRX IR (PRX) CANCELLATION PGA DRV Pin Configurations appear at end of data sheet. Functional Diagrams continued at end of data sheet. GND UCSP is a trademark of Maxim Integrated Products, Inc. For pricing, delivery, and ordering information, please contact Maxim Direct 19-5859 Rev 0 10/11 at 1-888-629-4642, or visit Maxims website at www.maxim integrated.com. AVAILABLEMAX44000 Ambient and Infrared Proximity Sensor ABSOLUTE MAXIMUM RATINGS All Pins to GND ....................................................-0.3V to +4.0V Continuous Power Dissipation (T = +70NC) A Output Short-Circuit Current Duration .......................Continuous 6-Pin OTDFN (derate 11.9mW/NC above +70NC) ............ 953mW Continuous Input Current into Any Terminal ...................Q20mA Operating Temperature Range ........................ -40NC to +105NC Soldering Temperature (reflow) ......................................+260NC Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS V = 1.8V, T T = -40C to +105C, T = +25C, unless otherwise noted.) (Note 1) ( DD MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS AMBIENT LIGHT RECEIVER CHARACTERISTICS Maximum Ambient Light Fluorescent light (Note 2) 0.03 Lux/LSB Sensitivity Ambient Light Saturation Level 65,535 Lux Green LED 538nm response, T = +25NC A 15 % Gain Error (Note 2) Light Source Matching Fluorescent/incandescent light 10 % Infrared Transmittance 850nm vs. 538nm, T = +25NC 0.5 % A Ultraviolet Transmittance 363nm vs. 538nm, T = +25NC 2 % A Dark Current Level 100ms conversion time, 0 lux, T = +25NC 0 Count A 14-bit resolution, has 50Hz/60Hz rejection 100 12-bit resolution 25 ADC Conversion Time ms 10-bit resolution 6.25 8-bit resolution 1.56 T = -40NC to +105NC 6 A ADC Conversion Time Accuracy % T = +25NC 0.7 A INFRARED PROXIMITY RECEIVER CHARACTERISTICS Maximum Proximity Detection mW/cm2/ 2 850nm IR LED, 60W/cm 1.5 Sensitivity LSB Sunlight Rejection Offset No reflector 0 to 100k lux 0 Counts Counts/ Sunlight Rejection Gain Error With reflector 0 to 100k lux 0.1 klux 2 Maxim Integrated