DATASHEET ISL29011 FN6467 Rev 6.00 Digital Ambient Light Sensor and Proximity Sensor with Interrupt Function May 1, 2014 The ISL29011 is an integrated ambient and infrared Features 2 light-to-digital converter with a built-in IR LED driver and I C Proximity Sensing Interface (SMBus Compatible). This device provides not only ambient light sensing to allow robust backlight/display brightness Ambient IR cancellation during proximity sensing control but also infrared sensing to allow proximity estimation - Works under direct sunlight featured with interrupt function. IR LED driver with programmable source current For ambient light sensing, an internal ADC has been designed - Adjustable current drive from 100mA to 12.5mA based on the charge-balancing A/D conversion technique. The ADC conversion time is nominally 90ms and is user adjustable Programmable LED current modulation frequency from 11s to 90ms, depending on oscillator frequency and ADC Variable conversion resolution resolution. This ADC is capable of rejecting 50Hz and 60Hz flicker Ambient Light Sensing noise caused by artificial light sources. The lux-range-select feature allows users to program the lux range for optimized Simple output code directly proportional to lux counts/lux. Adjustable sensitivity up to 65 counts per lux For proximity sensing, the ADC is used to digitize the output signal 2 Selectable range (via I C) from the photodiode array when the internal IR LED driver is - Range 1 = 0.015 lux to 1,000 lux turned on and off for the programmed time periods under - Range 2 = 0.06 lux to 4,000 lux user-selected modulation frequency to drive the external IR LED. As this proximity sensor employs a noise cancellation scheme to - Range 3 = 0.24 lux to 16,000 lux highly reject unwanted IR noise, the digital output of proximity - Range 4 = 0.96 lux to 64,000 lux sensing decreases with distance. The driver output current is user Integrated 50Hz/60Hz noise rejection selectable up to 100mA to drive different types of IR emitter LEDs. Works under various light sources, including sunlight 2 Six different modes of operation can be selected via the I C Ideal Spectral Response for Light and Proximity Sensor interface: Programmable ALS once with auto power-down, Light sensor close to human eye response programmable IR sensing once, programmable proximity sensing - Excellent light sensor IR and UV rejection once, programmable continuous ALS sensing, programmable continuous IR sensing and programmable continuous proximity Proximity sensor range from 850nm to 950nm sensing. The programmable one-time operation modes greatly - Can use either 850nm or 950nm LED solution reduce power because an immediate automatic shutdown reduces overall supply current less than 0.5A. Ultra Low Power 90A max operating current The ISL29011 supports both hardware and software interrupts 2 that remain asserted until the host clears it through the I C Software shutdown and automatic shutdown interface for ambient light sensing and proximity detection. -0.5A max shutdown current Designed to operate on supplies from 2.25V to 3.63V, the Easy to Use ISL29011 is specified for operation over the -40C to +85C 2 I C (SMBus compatible) output ambient temperature range. It is packaged in a clear, Pb-free 8 Ld ODFN package. No complex algorithms needed Temperature compensated Applications Small form factor Display and keypad dimming adjustment and proximity - 8 Ld 2.0mmx2.1mmx0.7mm ODFN package sensing for: - Mobile devices: smart phone, PDA, GPS Additional Features 2 - Computing devices: Notebook PC, Webpad I C and SMBus compatible - Consumer devices: LCD-TV, digital picture frame, digital 2 1.7V to 3.63V supply for I C interface camera 2.25V to 3.63V sensor power supply Industrial and medical light and proximity sensing Pb-Free (RoHS compliant) FN6467 Rev 6.00 Page 1 of 19 May 1, 2014ISL29011 Ordering Information PACKAGE PART NUMBER TEMP. RANGE Tape and Reel PKG. (Notes 1, 2, 3) (C) (Pb-Free) DWG. ISL29011IROZ-T7 -40 to +85 8 Ld ODFN L8.2.1x2.0 ISL29011IROZ-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 ISL29011. For more information on MSL, please see tech brief TB477. Pin Configuration ISL29011 (8 LD ODFN) TOP VIEW) VDDD 1 8 IRDR VDDA 2 7 INT GND 3 6 SDA REXT 4 5 SCL EXPOSED PAD CAN BE CONNECTED TO GND OR ELECTRICALLY ISOLATED Pin Descriptions PIN NUMBER PIN NAME DESCRIPTION 1 VDDD Positive digital supply: 2.25V to 3.63V. 2 VDDA Positive analog supply: 2.25V to 3.63V, VDDA and VDDD should be externally shorted. 3 GND Ground. The thermal pad is also connected to the GND pin. 4 REXT External resistor pin setting the internal reference current and the conversion time. 499k with a 1% tolerance resistor is recommended. 2 2 5SCLI C serial clock line The I C bus lines can be pulled from 1.7V to above V , 3.63V max. DD 2 6SDAI C serial data line 7INT Interrupt pin LO for interrupt/alarming. The INT pin is an open drain. 8 IRDR IR LED driver pin connecting to the anode of the external IR LED. The source current of the IR LED driver can be 2 programmed through I C. Exposed pad connected to ground or electrically isolated. FN6467 Rev 6.00 Page 2 of 19 May 1, 2014