Light-to-Digital I2C Sensor

The ISL29002 is an integrated light sensor with a built-in integrating type ADC and a standard I2C interface. The device transforms illuminance, ambient light level in lux, into a digital output signal accessible through I2C. The sensor precisely converts illuminance from 1lux to 100,000lux. The ADC features up to 15-bit effective resolution. The sensor includes another photodiode covered with metal to reduce the effects of dark output reading that may be significant in low lux levels.

Features

• I2C interface fast mode at 400kHz

• 88µA disabled current

• Adjustable max lux range: 10,000lux to 100,000lux

• Up to 15-bit effective resolution

• Adjustable resolution: 0.15 to 1.65 counts per lux

• Simple output code proportional to lux

• Flicker/noise rejection

• Variable integration time; 50ms to 550ms

• 2.5V to 3.3V supply

• 8 Ld ODFN (3mmx3mm)

• Temperature compensation

• Pb-free available (RoHS compliant)

Applications

• Backlight sensing

• Automatic backlight adjustment

• Backlight linearity adjustments