ISL29101 ® Data Sheet July 1, 2008 Small, Low Power, Voltage-Output Ambient Light Photo Detect IC FN6510.0 Features • 0.5 lux to 10,000 lux range The ISL29101 is a low power ambient Light-to-Voltage optical sensor combining a photodiode array, a current amplifier and a micropower operational amplifier on a single monolithic IC. Similar to the human eye, the photodiode array has a peak response at 550nm and spans from 400nm to 600nm, rejecting UV light and IR light. The output voltage is proportional to the visible light intensity from 0.5 lux up to 10,000 lux. However, the input luminance range can go up to 30,000 lux with some compromise in linearity. A dark current compensation circuit aids the photodiode array to minimize temperature dependent leakage currents in the absence of light, improving the light sensity at low lux levels. • 1.8V to 3.3V supply range • Low supply current • Fast response time • Excellent linearity of output voltage vs light intensity • Close to human eye response • Good IR rejection • Internal temperature compensation • Operating temperature range -40°C to +85°C • Ultra-compact surface mount package Housed in an ultra-compact surface mount 2mmx2.1mm ODFN clear plastic package, this device is excellent for power saving control functions in cell phones, PDAs, and other handheld applications. • Pb-free (RoHS compliant) Ordering Information - Mobile devices: smart phone, PDA, GPS - Computing devices: notebook PC, webpod - Consumer devices: LCD-TV, digital picture frame, digital camera • Industrial and medical light sensing PART NUMBER (Note 2) TEMP. RANGE (°C) ISL29101IROZ-T7 (Note 1) -40 to +85 PACKAGE (Pb-free) 6 Ld ODFN Tape and Reel Applications • Display and keypad dimming for: PKG. DWG. # L6.2x2.1 Pinout ISL29101IROZ-EVALZ Evaluation Board ISL29101 (6 LD ODFN) TOP VIEW 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. VDD 1 GND 2 THERMAL PAD* 5 NC 4 REXT NC 3 *THERMAL PAD CAN BE CONNECTED TO GND OR ELECTRICALLY ISOLATED Simplified Block Diagram VDD 1 Pin Descriptions VOUT LIGHT DATA PROCESS GND 2 6 VOUT CURRENT AMPLIFIER OUTPUT CURRENT α LIGHT INTENSITY + PHOTODIODE ARRAY 6 PIN NAME 1 VDD Supply. 1.8V to 3.3V 2 GND Ground 3, 5 NC 4 REXT Connected to an external resistor to GND setting the light-to-voltage proportionality constant. 6 VOUT Voltage Output 4 REXT 1 DESCRIPTION No Connect CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2008. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ISL29101 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3000V Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V Thermal Resistance θJA (°C/W) 6 Ld ODFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . +90°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +100°C Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/data/tb/TB477.pdf 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. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA Electrical Specifications VDD = 3V, TA = +25°C, REXT = 100kΩ, no load at VOUT, green LED light, unless otherwise specified. PARAMETER DESCRIPTION E Range of Input Light Intensity VDD Power Supply Range IDD Supply Current CONDITION MIN TYP MAX 0.5 to 10k 1.8 UNIT lux 3.3 V 35 µA E = 1000 lux 23 E = 100 lux 3.5 µA E = 0 lux 0.65 µA 165 mV VOUT0 Light-to-Voltage Accuracy E = 100 lux VOUT1 Light-to-Voltage Accuracy E = 1000 lux VDARK Voltage Output in the Absence of Light ΔVOUT 1.65 2.13 V E = 0 lux, RL = 10MΩ 1 25 mV Output Voltage Variation Over Three Light Sources: Fluorescent, Incandescent and Halogen E = 1000 lux 20 % PSRR Power Supply Rejection Ratio E = 100 lux, VDD = 1.8V to 3.3V 2.5 mV/V VO-MAX Maximum Output Compliance Voltage at 95% of Nominal Output VDD - 0.7V V tR ISRC and ISNK Rise Time (Note 3) E = 300 lux from 0 lux 104 µs E = 1000 lux from 0 lux 27 µs E = 300 lux to 0 lux 562 µs E = 1000 lux to 0 lux 233 µs E = 300 lux from 0 lux 504 µs E = 1000 lux from 0 lux 209 µs 30 µs 18 µs tF tD tS ISRC and ISNK Fall Time (Note 3) ISRC and ISNK Delay Time for Rising Edge (Note 3) ISRC and ISNK Delay Time for Falling Edge (Note 3) E = 300 lux to 0 lux E = 1000 lux to 0 lux 1.15 ISC Short Circuit Current of Op Amp ±11 mA SR Slew Rate of Op Amp ±10 V/ms VOS Offset Voltage of Op Amp ±1.2 mV NOTE: 3. Switching time measurement is based on Figures 1 and 2. 2 FN6510.0 July 1, 2008 ISL29101 POWER SUPPLY OR SOURCE METER INPUT LIGHT VDD 10% 90% tr ISL29101 FUNCTION GENERATOR tS VOUT tf% 90% 10% OUTPUT REXT tD FIGURE 2. TIMING DIAGRAM FIGURE 1. TEST CIRCUIT FOR RISE/FALL TIME MEASUREMENT Typical Performance Curves 1.2 1.0 NORMALIZED LIGHT INTENSITY NORMALIZED RESPONSE 1.2 HUMAN EYE RESPONSE 0.8 0.6 ISL29101 RESPONSE 0.4 0.2 400 500 600 700 800 WAVELENGTH (nm) 900 1000 0.8 1100 0.4 WLED 0.2 2.0 0° 10° 20° 30° 40° 50° 50° 60° 60° 70° 70° 80° 80° 90° 90° 1.0 0.2 0.4 0.6 0.8 RELATIVE SENSITIVITY FIGURE 5. RADIATION PATTERN 3 400 500 600 700 800 WAVELENGTH (nm) 900 1000 1100 VDD = 3V REXT = 10kΩ 1.8 OUTPUT VOLTAGE (V) 10° HALOGEN FIGURE 4. SPECTRUM OF LIGHT SOURCES RADIATION PATTERN 20° SUN 0.6 FIGURE 3. SPECTRAL RESPONSE LUMINOSITY 30° ANGLE 40° INCANDESCENT 0 300 0 300 FLUORESCENT 1.0 1.6 1.4 1.2 HALOGEN 1.0 INCANDESCENT 0.8 FLUORESCENT 0.6 0.4 0.2 0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 LIGHT INTENSITY (LUX) FIGURE 6. OUTPUT VOLTAGE vs LIGHT SENSITIVITY FN6510.0 July 1, 2008 ISL29101 2.0 2.0 VDD = 3V REXT = 100kΩ 1.8 1.6 1.4 1.2 HALOGEN 1.0 INCANDESCENT 0.8 FLUORESCENT 0.6 0.4 1.6 1.4 1.2 1.0 0.8 0.4 0.2 0 0 10 20 30 40 50 60 70 LIGHT INTENSITY (LUX) 80 90 18 16 OUTPUT VOLTAGE (mV) FALL TIME 10.00 DELAY TIME BEFORE BEFORE RISING 1.00 DELAY TIME BEFORE FALLING 0.10 14 12 10 RISE TIME 10 100 LUX CHANGE FROM 0 LUX (LUX) 1k FIGURE 9. TRANSIENT TIME vs LUX CHANGE FROM 0 LUX 0.117 VDD = 3V REXT = 10MΩ LIGHT INTENSITY = 0 LUX VDD = 3V REXT = 10MΩ 0.065 0.039 4 0.026 2 0.013 0 0 -0.013 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (°C) FIGURE 10. OUTPUT VOLTAGE vs TEMPERATURE AT 0 LUX 1.02 NORMALIZED OUTPUT VOLTAGE VARIATION 1.03 0.6 0.078 6 VDD = 3V REXT = 10MΩ 1.2 LIGHT INTENSITY = 0 LUX NO LOAD 0.8 0.091 0.052 1.4 1.0 0.104 8 -2 0.01 1 100 FIGURE 8. OUTPUT VOLTAGE vs LIGHT INTENSITY 100.00 TRANSIENT TIME (ms) INCANDESCENT 0 100 200 300 400 500 600 700 800 900 1000 LIGHT INTENSITY (LUX) FIGURE 7. OUTPUT VOLTAGE vs LIGHT SENSITIVITY SUPPLY CURRENT (µA) FLUORESCENT HALOGEN 0.6 0.2 0 VDD = 3V REXT = 1MΩ 1.8 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) (Continued) EQUIVALENT LIGHT INTENSITY (LUX) Typical Performance Curves VDD = 3V FLUORESCENT LIGHT 1.01 1.00 300 LUX 0.99 1000 LUX 0.98 0.4 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (°C) FIGURE 11. SUPPLY CURRENT vs TEMPERATURE AT 0 LUX 4 0.97 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (°C) FIGURE 12. NORMALIZED OUTPUT VOLTAGE vs TEMPERATURE FN6510.0 July 1, 2008 ISL29101 Typical Performance Curves (Continued) 1.02 SUPPLY CURRENT (µA) 20 18 1100 LUX 16 14 12 10 300 LUX 8 6 NO LOAD 4 VDD = 3V REXT = 100kΩ FLUORESCENT LIGHT 0 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 NORMALIZED OUTPUT VOLTAGE 22 1.01 FLUORESCENT LIGHT INTENSITY = 1100 LUX REXT = 100kΩ VDD = 3 1.00 0.99 0.98 0.97 1.5 TEMPERATURE (°C) 2.0 2.5 3.0 3.5 4.0 SUPPLY VOLTAGE (V) FIGURE 13. SUPPLY CURRENT vs TEMPERATURE FIGURE 14. NORMALIZED OUTPUT VOLTAGE vs SUPPLY VOLTAGE 23.0 SUPPLY CURRENT FLUORESCENT LIGHT INTENSITY = 1100 LUX LOAD 22.5 NO VDD = 3 LIGHT INTENSITY VDD = 3V, REXT = 100kΩ LIGHT INTENSITY RISES FROM 0 LUX TO 300 LUX AND FALLS FROM 300 LUX TO 0 LUX WITH WHITE LED 22.0 21.5 21.0 VOUT 0V 20.5 20.0 1.5 2.0 2.5 3.0 SUPPLY VOLTAGE (V) 3.5 4.0 FIGURE 15. SUPPLY CURRENT vs SUPPLY VOLTAGE 5 FIGURE 16. TRANSIENT RESPONSE OF ISL29101 TO CHANGE IN LIGHT INTENSITY FN6510.0 July 1, 2008 ISL29101 Application Information the ISL29101’s output circuit may result in premature saturation when an excessively large REXT is used. The output compliance voltage is 700mV below the supply voltage, as listed in VO-MAX of the “Electrical Specifications” table on page 2. Light-to-Voltage Conversion The ISL29101 has responsiveness that is a linear 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). V OUT = ( 1.6μA ⁄ 100lux ) • E • R EXT Optical Sensor Location Outline The green area in Figure 17 shows the optical sensor location outline of ISL29101. Along the pin-out 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 pin-out 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) Here, VOUT is the output voltage and E is the light intensity. REXT is the value of the external resistor, which is used to set the light-to-voltage scaling constant. The compliance of 2.10mm 2.00mm SENSOR OFFSET 29101 0.46mm 0.19mm 0.39mm FIGURE 17. 6 LD ODFN SENSOR LOCATION OUTLINE All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. 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 6 FN6510.0 July 1, 2008 ISL29101 Package Outline Drawing L6.2x2.1 6 LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 0, 9/06 2.10 A 6 PIN 1 INDEX AREA B 1 6 PIN 1 INDEX AREA 0.65 2.00 1 . 35 (4X) 1 . 30 REF 0.10 6X 0 . 30 ± 0 . 05 0 . 65 TOP VIEW 0.10 M C A B 6X 0 . 35 ± 0 . 05 BOTTOM VIEW (0 . 65) MAX 0.75 SEE DETAIL "X" 0.10 C (0 . 65) (1 . 35) C BASE PLANE ( 6X 0 . 30 ) SEATING PLANE 0.08 C SIDE VIEW ( 6X 0 . 55 ) C 0 . 2 REF 5 (1 . 95) 0 . 00 MIN. 0 . 05 MAX. DETAIL "X" TYPICAL RECOMMENDED LAND PATTERN NOTES: 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994. 3. Unless otherwise specified, tolerance : Decimal ± 0.05 4. Dimension b 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. 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. 7 FN6510.0 July 1, 2008