isl29018 Intersil Corporation, isl29018 Datasheet
isl29018
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isl29018 Summary of contents
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... Data Sheet Digital Ambient Light Sensor and Proximity Sensor with Interrupt Function The ISL29018 is an integrated ambient and infrared light to digital converter with a built-in IR LED driver and I (SMBus Compatible). This device provides not only ambient light sensing to allow robust backlight/display brightness control but also infrared sensing to allow proximity estimation featured with interrupt function ...
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... IRDR IR LED driver pin connecting to the anode of the external IR LED. The source current of the IR LED driver can be programmed through I Exposed pad connected to ground or electrically isolated. 2 ISL29018 TEMP. RANGE (°C) -40 to +85 Evaluation Board ISL29018 (8 LD ODFN TOP VIEW) VDDD 1 8 IRDR VDDA 2 7 ...
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... Block Diagram PHOTODIODE ARRAY LIGHT DATA PROCESS ALS AND IR IR PHOTODIODE ARRAY 4 REXT 3 ISL29018 VDDA 2 INTEGRATION ADC IREF FOSC 3 GND ISL29018 VDDD 1 COMMAND REGISTER DATA REGISTER 6 SDA SCL 5 INTERRUPT INT 7 IRDR 8 IR DRIVER March 3, 2009 FN6619.0 ...
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... V SCL and SDA Input Low Voltage IL V SCL and SDA Input High Voltage IH 4 ISL29018 = +25°C) Thermal Information and GND . . . . . .4V Thermal Resistance (Typical, Note 1) DD +/- 0. ODFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... Low-Power Operation The ISL29018 initial operation is at the power-down mode after a supply voltage is provided. The data registers contain the default value of 0. When the ISL29018 receives command one-time measurement from will start ADC conversion with light or proximity sensing. It ...
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... I C Interface There are eight 8-bit registers available inside the ISL29018. The two command registers define the operation of the device. The command registers do not change until the registers are overwritten. The two 8-bit data Read Only registers are for the ADC output and the Timer output ...
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... SDA OUT SDA DRIVEN BY MASTER CLK Register Set There are eight registers that are available in the ISL29018. Table 1 summarizes their functions. ADDR REG NAME 7 00h COMMANDI OP2 01h COMMANDII Scheme 02h DATA D7 LSB ...
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... LSB and 07 hex is the MSB. By default, the Interrupt threshold hex for both LSB and MSB. Calculating Lux The ISL29018’s ADC output codes, DATA, are directly proportional to lux in the ambient light sensing as shown in Equation 1. E ...
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... Clearly, it can not detect an optically black object that reflects no light. However, ISL29018 is sensitive enough to detect a black ESD foam, which reflects slightly less than 1% of IR, as shown in Figure 9. For biological objects, blonde hair reflects more than β ...
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... C traces as far as possible from all sources of noise. Use two power-supply decoupling capacitor 0.1µF, placed close to the device. Typical Circuit A typical application for the ISL29018 is shown in Figure 4. 2 The ISL29018’ address is internally hardwired as 1000100. The device can be tied onto a system’s I ...
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... SCL REXT ISL29018 499k C1 0.1¬µ 11 ISL29018 30ms 50¬µ 1mA 50mA 10kΩ 10kΩ 10kΩ SLAVE_1 8 SDA 7 SCL 6 5 FIGURE 4. ISL29018 TYPICAL CIRCUIT 1.7V TO 3.63V MASTER MICROCONTROLLER INT SDA SCL SLAVE_n SDA SCL March 3, 2009 FN6619.0 ...
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... BRIGHTNESS PAPER 1000 18% GRAY CARD 100 10 ESD BLACK FOAM DISTANCE (mm) FIGURE 9. ADC OUTPUT vs DISTANCE WITH DIFFERENT OBJECTS IN PROXIMITY SENSING 12 ISL29018 3V 499kΩ SUP DDD DDA EXT INCANDESCENT HALOGEN FLUORESCENT 900 1000 1100 FIGURE 6. SPECTRAL RESPONSE FOR AMBIENT LIGHT ...
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... Typical Performance Curves 350 300 PIG'S SKIN 250 4mm CENTER-TO-CENTER FOR ISL29018 AND SFH4650, 200 ISOLATED BY BARRIER 150 IR TRANSMITTING GLASS 18% GRAY 130 CTS = 500 CTS x 65% x 65% 100 = 211 CTS BLOND HAIR DISTANCE (mm) FIGURE 11. PROXIMITY DETECTIONS OF VARIOUS BIOLOGICAL OBJECTS 1 ...
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... 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 14 ISL29018 3. FIGURE 16 ...
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... Rev 0, 01/07 3.00 6 PIN 1 INDEX AREA (2X) 0.10 TOP VIEW (2.80 TYP) (6x0.65) (8x0.30) (1.40) (8x0.60) TYPICAL RECOMMENDED LAND PATTERN 15 ISL29018 0. 0.30¬¨ ¬¨¬± BOTTOM VIEW 0.70¬¨ SIDE VIEW (2.29 ...