ISL29020 Intersil Corporation, ISL29020 Datasheet
ISL29020
Available stocks
Related parts for ISL29020
ISL29020 Summary of contents
Page 1
... A Low Power, High Sensitivity, Light-to 2 Digital Sensor With I C Interface www.datasheet4u.com The ISL29020 is a low power, high sensitivity, integrated light 2 sensor with I C (SMBus Compatible) interface. Its state-of-the-art photodiode array provides close-to human eye response and good IR rejection. This ADC is capable of rejecting 50Hz and 60Hz flicker caused by artificial light sources ...
Page 2
... LED is used in production test. The 550nm LED irradiance is calibrated to produce the same DATA count against an illuminance level of 300 lux fluorscent light. 2. 850nm green LED is used in production test. The 850nm LED irradiance is calibrated to produce the same DATA_IR count against an illuminance level of 210 lux sunlight at sea level. 2 ISL29020 Thermal Information (T = +25°C) A and GND ...
Page 3
... Low-Power Operation The ISL29020 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 ISL29020 receives an I command one-time measurement from an I master, it will start light sensing and ADC conversion. It will ...
Page 4
... SDA DRIVEN BY MASTER FIGURE SYNC_I C TIMING DIAGRAM SAMPLE DEVICE ADDRESS SDA DRIVEN BY ISL29020 SDA DRIVEN BY MASTER FUNCTIONS ...
Page 5
... Register Set There are three 8-bit registers in the ISL29020. Table 1 summarizes their functions. ADDR REG NAME 7 00h COMMAND EN www.datasheet4u.com 01h DATA D7 LSB 02h DATA D15 MSB TABLE 2. WRITE ONLY REGISTERS ADDRESS NAME FUNCTIONS/DESCRIPTION 2 b1xxx_xxxx sync_I C Writing a logic 1 to this address bit ends the current ADC-integration and starts another ...
Page 6
... Integration time affects the measurement resolution. For better resolution, use a longer integration time. For short and fast conversions, use a shorter integration time. The ISL29020 offers user flexibility in the integration time to (EQ. 1) balance resolution, speed and noise rejection. Integration time can be set internally or externally by programming the bit 4 of the command register 00(hex) ...
Page 7
... A thickness 1mm is recommended for 7 ISL29020 a window lens design. The bigger the diameter of the window lens, the wider the viewing angle is of the ISL29020. Table 11 shows the recommended dimensions of the optical n = 8-BIT n = 4-BIT window to ensure both 35° and 45° viewing angle. These 200µ ...
Page 8
... ISL29020 LIGHT PIPE FIGURE 5. WINDOW WITH LIGHT GUIDE/PIPE Typical Circuit A typical application for the ISL29020 is shown in Figure 6. The ISL29020’s I device can be tied onto a system’s I other I Soldering Considerations Convection heating is recommended for reflow soldering; direct-infrared heating is not recommended. The plastic ODFN package does not require a custom reflow soldering profile, and is qualified to +260° ...
Page 9
... FIGURE 9. RADIATION PATTERN 10 0 lux -60 -20 20 TEMPERATURE (°C) FIGURE 11. OUTPUT CODE FOR 0 LUX vs TEMPERATURE 9 ISL29020 ( 500kΩ) DD EXT SUN HALOGEN INCANDESCENT FLUORESCENT 800 900 1000 1100 10° 20° 30° 40° 50° 60° ...
Page 10
... 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 10 ISL29020 ( 500kΩ) (Continued) ...
Page 11
... LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 0, 9/06 www.datasheet4u.com 6 PIN 1 INDEX AREA (4X) 0.10 TOP VIEW ( 95) TYPICAL RECOMMENDED LAND PATTERN 11 ISL29020 2. ± 35 NOTES: 0. ± BOTTOM VIEW MAX 0.75 SIDE VIEW 5 0 ...