DATASHEET ISL29112 FN8836 Rev.1.00 May 8, 2017 Low Power, <100 Lux Optimized, Analog Output Ambient Light Sensor The ISL29112 is a low cost, light-to-voltage silicon optical sensor combining a photodiode array, a non-linear current amplifier, and a micropower op amp on a single monolithic IC. Similar to the human eye, the photodiode array has peak sensitivity at 550nm and spans the wavelength range 400nm to 600nm, rejecting UV and IR light. The input luminance range is from 0.01 lux to 100 lux. Features The integrated non-linear current amplifier boosts and converts the photodiode signal into a square root output format, extending dynamic range while maintaining excellent sensitivity in dimly lit conditions. As such, the part is ideal for measuring incident daylight when mounted behind heavily smoked bezels used around displays or behind mirrors. • Fast response time The device consumes minimum power. A dark current compensation circuit minimizes the effect of temperature dependent leakage currents in the absence of light, improving the light sensitivity at low lux levels. The output gain has been optimized to require a relatively low value external bias resistor that falls within recommended automotive EMI limits. The built-in 1µA op amp gives the ISL29112 an output voltage driving advantage for heavier loads that can drive an ADC directly. • 6 Ld ODFN: 2mmx2.1mmx0.7mm The ISL29112 is housed in an ultra compact 2mmx2.1mm ODFN plastic surface mount package. Operation is rated from -40°C to +85°C. • Square root voltage output • 0.01 lux to 100 lux range • 1.8V to 3V supply range • Close to human eye spectral response • Internal temperature compensation • Good IR rejection • Low supply current • Operating temperature range -40°C to +85°C • Pb-free (RoHS compliant) Applications • Mobile devices: wearables, smart phone, PDA, GPS • Computing devices: notebook PC, MacBook, tablets • Consumer devices: LCD-TV, digital camera • Industrial, home automation and medical light sensing Related Literature • For a full list of related documents, visit our website - ISL29112 product page VDD 1 VOUT LIGHT DATA PROCESS GND - CURRENT AMPLIFIER 6 + OUTPUT CURRENT √LIGHT INTENSITY PHOTODIODE ARRAY 2 4 REXT FIGURE 1. SIMPLIFIED BLOCK DIAGRAM FN8836 Rev.1.00 May 8, 2017 Page 1 of 9 ISL29112 Pin Configuration ISL29112 (6 LD ODFN) TOP VIEW VDD 1 GND 2 6 VOUT PAD NC 3 5 NC 4 REXT Pin Descriptions PIN NUMBER PIN NAME PIN DESCRIPTION 1 VDD Voltage Supply (1.8V to 3V). 2 GND Ground 3, 5 NC 4 REXT Connected to an external resistor to GND, setting the light-to-voltage scaling constant. A REXT value of 100kΩis recommended. 6 VOUT Voltage Output. - PAD Thermal Pad. The thermal pad can be connected to GND or electrically isolated. No connect Ordering Information PART NUMBER (Notes 1, 2, 3) TAPE AND REEL (UNITS) ISL29112IROZ-T7 ISL29112IROZ-T7A ISL29112IROZ-EVALZ PACKAGE (RoHS Compliant) PKG. DWG. # 3k 6 Ld ODFN L6.2x2.1 250 6 Ld ODFN L6.2x2.1 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), see product information page for ISL29112. For more information on MSL please see techbrief TB477. FN8836 Rev.1.00 May 8, 2017 Page 2 of 9 ISL29112 Absolute Maximum Ratings (TA = +25°C) Thermal Information Supply Voltage Between VDD and GND . . . . . . . . . . . . . . . . . . . . . . . . . .3.6V REXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (-0.5V + GND) to (0.5V + VDD) VOUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (-0.5V + GND) to (0.5V + VDD) VOUT Short-Circuit Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mA ESD Rating Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . 2kV Thermal Resistance (Typical) JA (°C/W) JC (°C/W) 6 Ld ODFN (Notes 4, 5) . . . . . . . . . . . . . . . . 88 7.94 Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +90°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +100°C Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB487 CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTES: 4. JA is measured in free air with the component mounted on a high-effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 5. For JC, the “case temp” location is the center of the exposed metal pad on the package underside. Electrical Specifications Unless otherwise noted, all parameter limits are established across the recommended operating conditions: VDD = 3V, TA = -40°C to +85°C, REXT = 100kΩ, no load at VOUT and green LED light. (Typical values are at TA = +25°C). Boldface limits apply across the operating temperature range, -40°C to +85°C. PARAMETER Range of Input Light Intensity for Square Root Relationship to be Held SYMBOL MIN (Note 6) E Operating Supply Voltage VDD Supply Current IDD Light-to-Voltage Accuracy TEST CONDITIONS VOUT VDARK Output Voltage Variation Over Three Light Sources: Fluorescent, Incandescent and Halogen VOUT Power Supply Rejection Ratio PSRR Maximum Output Compliance Voltage at 95% of Nominal Output VO-CMPL Maximum Output Voltage Swing VO-MAX MAX (Note 6) 0.01 - 100 1.8 UNIT lux 3 V E = 0 lux, -40°C to +60°C 0.7 2 µA E = 100 lux 23 35 µA E = 10 lux 0.65 V E = 50 lux 1.35 V E = 100 lux Voltage Output in the Absence of Light TYP E = 0 lux, -40°C to +60°C E = 100 lux 1.40 1.85 2.30 V 0.95 20 mV 10 % 0.12 mV/V VDD - 0.7V V VDD V Rise Time tR E = 0 lux to 100 lux 95 µs Fall Time tF E = 100 lux to 0 lux 155 µs Delay Time for Rising Edge tD E = 0 lux to 100 lux 350 µs Delay Time for Falling Edge tS E = 100 lux to 0 lux 250 µs Short-Circuit Current of Op Amp ISC ±12 mA Slew Rate of Op Amp SR 13 V/ms Offset Voltage of Op Amp VOS ±0.9 mV NOTE: 6. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. FN8836 Rev.1.00 May 8, 2017 Page 3 of 9 ISL29112 POWER SUPPLY OR SOURCE METER INPUT LIGHT VDD 10% ISL29112 FUNCTION GENERATOR 90% tR tS tF% 90% VOUT 10% OUTPUT REXT tD FIGURE 2. TEST CIRCUIT FOR RISE/FALL TIME MEASUREMENT Typical Performance Curves FIGURE 3. TIMING DIAGRAM VDD = 3V, TA = +25°C, REXT = 100kΩ, no load at VOUT, green LED light, unless otherwise specified. 1.0 HUMAN EYE RESPONSE 0.9 1.0 0.8 0.6 LIGHT SENSOR RESPONSE 0.4 0.2 0.0 -0.2 300 400 600 800 1.0k FLUORESCENT 0.8 NORMALIZED INTENSITY NORMALIZED RESPONSE 1.2 INCANDESCENT 0.7 0.6 HALOGEN 0.5 0.4 SUN 0.3 0.2 0.1 0 350 1.1k 550 750 950 WAVELENGTH (nm) WAVELENGTH (nm) FIGURE 4. SPECTRAL RESPONSE FIGURE 5. SPECTRUM OF FOUR LIGHT SOURCES NORMALIZED BY LUMINOUS INTENSITY (lux) 3.25 RADIATION PATTERN 20° 0° 10° 3.05 20° 2.85 2.65 30° 40° VDD (V) LUMINOSITY 30° ANGLE 40° 10° 50° 50° 60° 60° 70° 70° 2.45 2.05 1.85 1.65 80° 80° 90° 0.2 0.4 0.6 0.8 RELATIVE SENSITIVITY FIGURE 6. RADIATION PATTERN FN8836 Rev.1.00 May 8, 2017 90° 1.0 VOUT + 0.7V 2.25 LOW LUX LIMIT 1.45 1.25 0.00001 0.0001 0.001 0.01 0.1 lux 1 10 100 1000 FIGURE 7. VDD OPERATING RANGE (WHITE LED) Page 4 of 9 ISL29112 Typical Performance Curves VDD = 3V, TA = +25°C, REXT = 100kΩ, no load at VOUT, green LED light, unless otherwise specified. (Continued) 2.0 0.45 1.8 0.40 0.35 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.30 0.25 0.20 0.15 0.10 0.05 0.2 0 0.01 0.1 1 10 100 0 0.001 1000 0.01 0.1 LIGHT INTENSITY (lux) LIGHT INTENSITY (lux) 120 3.0 100 2.5 80 60 40 20 0 -60 -40 -20 0 20 40 60 80 100 2.0 1.5 1.0 0.5 0 -60 120 -40 TEMPERATURE ( °C ) 0 20 40 60 80 100 120 FIGURE 11. SUPPLY CURRENT vs TEMPERATURE AT 0 lux 1.001 7.80 10 lux SUPPLY CURRENT (µA) NORMALIZED OUTPUT VOLTAGE -20 TEMPERATURE (° C ) FIGURE 10. OUTPUT VOLTAGE vs TEMPERATURE AT 0 lux 0.999 0.997 50 50LUX lux 0.995 0.993 10 FIGURE 9. OUTPUT VOLTAGE vs LIGHT INTENSITY 0.01 lux TO 5 lux SUPPLY CURRENT (µA) OUTPUT VOLTAGE (mV) FIGURE 8. OUTPUT VOLTAGE vs LIGHT INTENSITY 0.1 lux TO 100 lux 1.0 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 SUPPLY VOLTAGE (V) FIGURE 12. NORMALIZED OUTPUT VOLTAGE vs SUPPLY VOLTAGE FN8836 Rev.1.00 May 8, 2017 7.78 7.76 10 lux 7.74 7.72 7.70 7.68 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 SUPPLY VOLTAGE (V) FIGURE 13. SUPPLY CURRENT vs SUPPLY VOLTAGE Page 5 of 9 ISL29112 Typical Performance Curves VDD = 3V, TA = +25°C, REXT = 100kΩ, no load at VOUT, green LED light, 16.95 23.50 16.90 23.45 16.85 SUPPLY CURRENT (µA) SUPPLY CURRENT (µA) unless otherwise specified. (Continued) 50 lux 16.80 16.75 16.70 16.65 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 100 lux 23.40 23.35 23.30 23.25 23.20 2.2 2.4 SUPPLY VOLTAGE (V) FIGURE 14. SUPPLY CURRENT vs SUPPLY VOLTAGE 3.0 3.2 30 1.05 SUPPLY CURRENT (µA) NORMALIZED OUTPUT VOLTAGE 2.8 FIGURE 15. SUPPLY CURRENT vs SUPPLY VOLTAGE 1.10 10 lux 1.00 100 lux 0.95 50 lux 0.90 0.85 -60 2.6 SUPPLY VOLTAGE (V) -40 -20 0 20 40 60 80 100 120 25 20 100 lux 15 10 lux 10 50 lux 5 0 -60 -40 -20 FIGURE 16. NORMALIZED OUTPUT VOLTAGE vs TEMPERATURE 0 20 40 60 80 100 120 TEMPERATURE (°C) TEMPERATURE (° C ) FIGURE 17. SUPPLY CURRENT vs TEMPERATURE FREQUENCY = 100Hz FREQUENCY = 100Hz ISL29112 OUTPUT (V) LIGHT SOURCE LIGHT SOURCE ISL29112 OUTPUT (V) 100µs/DIV 100µs/DIV FIGURE 18. DELAY TIME vs LUX CHANGE FROM 0 lux FIGURE 19. DELAY TIME vs LUX CHANGE TO 0 lux FN8836 Rev.1.00 May 8, 2017 Page 6 of 9 ISL29112 Application Information Optical Sensor Location Outline Light-to-Voltage Conversion The ISL29112 has responsiveness that is a square root function of the light intensity intercepted by the photodiode in lux. Because the photodiode has a responsivity that resembles the human eye, conversion rate is independent of the light source (fluorescent light, incandescent light or direct sunlight). 18A V OUT = ----------------------- E R EXT 100lux The green area in Figure 20 shows the optical sensor location outline of ISL29112. Along the pinout direction, the Center Line (CL) of the sensor coincides with that of the packaging. The sensor width in this direction is 0.39mm. Perpendicular to the pinout direction, the CL of the sensor has an 0.19mm offset from the CL of packaging away from Pin 1. The sensor width in this direction is 0.46mm. (EQ. 1) In Equation 1, VOUT is the output voltage, E is the light intensity, and REXT is the value of the external resistor. The REXT is used to set the light-to-voltage scaling constant. The compliance of the ISL29112's output circuit may result in premature saturation when an excessively large REXT is used. A REXT value of 100kΩ is recommended for automotive applications. The output compliance voltage is 700mV below the supply voltage as listed in VO-MAX of the “Electrical Specifications” table on page 3. 2.10mm 2.00mm SENSOR OFFSET 1 0.19mm 6 5 2 0.46mm 3 4 0.39mm FIGURE 20. 6 LD ODFN SENSOR LOCATION OUTLINE FN8836 Rev.1.00 May 8, 2017 Page 7 of 9 ISL29112 Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please visit our website to make sure you have the latest revision. DATE REVISION CHANGE May 8, 2017 FN8836.1 Ordering Information table on page 2: Added ISL29112IROZ-T7A and replaced ISL76671EVAL1Z with ISL29112IROZ-EVALZ. Apr 1, 2016 FN8836.0 Initial Release About Intersil Intersil Corporation is a leading provider of innovative power management and precision analog solutions. The company's products address some of the largest markets within the industrial and infrastructure, mobile computing and high-end consumer markets. For the most updated datasheet, application notes, related documentation and related parts, please see the respective product information page found at www.intersil.com. For a listing of definitions and abbreviations of common terms used in our documents, visit www.intersil.com/glossary. You may report errors or suggestions for improving this datasheet by visiting www.intersil.com/ask. Reliability reports are also available from our website at www.intersil.com/support. © Copyright Intersil Americas LLC 2016-2017. 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No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN8836 Rev.1.00 May 8, 2017 Page 8 of 9 ISL29112 Package Outline Drawing For the most recent package outline drawing, see L6.2x2.1. L6.2x2.1 6 LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 4, 2/15 2.10 A B 6 PIN 1 INDEX AREA 1 6 PIN #1 INDEX AREA 0.65 1.35 2.00 1.30 REF 4 6x0.30 ±0.05 (4X) 0.10 0.10 M C A B 0.65 6x0.35 ±0.05 TOP VIEW BOTTOM VIEW 2.50 PACKAGE OUTLINE 2.10 SEE DETAIL "X" 0.65 (4x0.65) 0.10 C MAX 0.75 C BASE PLANE SEATING PLANE 0.08 C SIDE VIEW (1.35) 0.2 REF (6x0.30) 5 C (6x0.20) (6x0.55) 0.00 MIN. 0.05 MAX. TYPICAL RECOMMENDED LAND PATTERN DETAIL "X" NOTES: 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to ASME Y14.5m-1994. 3. Unless otherwise specified, tolerance: Decimal ± 0.05 4. Dimension applies to the metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. 5. Tiebar shown (if present) is a non-functional feature and maybe located on any of the 4 sides (or ends). 6. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 identifier may be either a mold or mark feature. FN8836 Rev.1.00 May 8, 2017 Page 9 of 9