ISL76683
Light-to-Digital Output Sensor with Gain Selection, Interrupt Function and I²C Interface

Key Features

• Range select via I²C
• Range 1 = 0 lux to 1000 lux
• Range 2 = 0 lux to 4000 lux
• Range 3 = 0 lux to 16,000 lux
• Range 4 = 0 lux to 64,000 lux
• Human eye response (540nm peak sensitivity)
• Temperature compensated
• 16-bit resolution
• Adjustable sensitivity: up to 65 counts per lux
• User-programmable upper and lower threshold interrupt
• Simple output code, directly proportional to lux
• IR + UV rejection
• 50Hz/60Hz rejection
• 2.5V to 3.3V supply
• 6 Ld ODFN (2.1mmx2mm)
• Pb-free (RoHS compliant)

Description

The ISL76683 is an integrated light sensor with an internal integrating ADC intended for automotive applications. The ADC provides 16-bit resolution and is capable of rejecting 50Hz and 60Hz flicker caused by artificial light sources. The I²C interface provides four user programmable lux sensitivity ranges for optimized counts/lux in a variety of lighting conditions. In addition, the I²C interface provides multi-function control of the sensor and remote monitoring capabilities.

In normal operation, power consumption is less than 300µA. Furthermore, a software power-down mode controlled via the I²C interface reduces power consumption to less than 1µA.

The ISL76683 supports twin (upper & lower) user programmed thresholds and provides a hardware interrupt that remains asserted low until the host clears it via the I²C control interface.

Designed to operate on supplies from 2.5V to 3.3V, the ISL76683 is qualified to AECQ100 and specified for operation over the -40°C to +105°C (grade 2) ambient temperature range. To achieve this, the ISL76683 is packaged in a special extended temperature clear package.

Applications

• Automotive ambient light sensing
• Backlight control
• Lighting controls