ISL29004
Light-to-Digital Output Sensor, High Sensitivity, Gain Selection, Interrupt Function and I²C Interface

Key Features

• Range select via I²C
• Range1 = 1000Lux
• Range2 = 4000Lux
• Range3 = 16,000Lux
• Range4 = 64,000Lux
• Human eye response (540nm peak sensitivity)
• Temperature compensated
• 16-bit resolution
• Adjustable resolution: up to 65 counts per Lux
• User-programmable upper and lower threshold interrupt
• Simple output code, directly proportional to Lux
• 50Hz/60Hz rejection
• 2.5V to 3.3V supply
• 8 Ld ODFN (3mmx3mm)
• I²C address selection

Description

The ISL29004 is an integrated light sensor with a 16-bit integrating type ADC, I²C user programmable Lux range select for optimized counts/Lux, and I²C multi-function control and monitoring capabilities. The internal ADC provides 16-bit resolution while rejecting 50Hz and 60Hz flicker caused by artificial light sources.

In normal operation, power consumption is typically 300µA. Futhermore, an available software power-down mode controlled via the I²C interface reduces power consumption to less than 1µA. The device also support a hardware interrupt that remains asserted low until the host clears it through I²C interface.

The ISL29004 is in an 8 Ld ODFN package and has two I²C address pins for multiple devices on the same bus. The ISL29003 is a similar light sensor with a hardwired I²C address that is available in ODFN6 package.

Designed to operate on supplies from 2.5V to 3.3V, the ISL29004 are specified for operation over the -40°C to +85°C ambient temperature range.

Applications

• Ambient light sensing
• Backlight control
• Temperature control systems
• Contrast control
• Camera light meters
• Lighting controls