Features
- Low power
- 65μA maximum operating current
- 0.5μA maximum shutdown current
- Software shutdown and automatic shutdown
- Ideal spectral response
- Close to Human eye response
- Excellent IR and UV rejection
- Easy to use
- Simple output code directly proportional to lux
- I²C (SMBus compatible) output w/address selection
- Variable conversion resolution up to 16-bits
- Adjustable sensitivity up to 65 counts per lux
- Works under various light sources, including sunlight
- Selectable range (using I²C)
- Range 1 = 0.015 lux to 1,000 lux
- Range 2 = 0.06 lux to 4,000 lux
- Range 3 = 0.24 lux to 16,000 lux
- Range 4 = 0.96 lux to 64,000 lux
- Temperature compensated
- Integrated 50/60Hz noise rejection
- 2.25V to 3.3V supply
- AEC-Q100 qualified
- Pb-Free (RoHS compliant)
Description
The ISL76682 is a low power, high sensitivity, integrated light sensor with I²C (SMBus Compatible) interface. Its state-of-the-art photo-diode 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. The lux range select feature allows you to program the lux range for optimized counts/lux.
In normal operation, typical power consumption is 55μA. To further minimize power consumption, two power-down modes have been provided. If polling is chosen over continuous measurement of light, the automatic power-down function shuts down the whole chip after each ADC conversion for the measurement. The other power-down mode is controlled by software using an I²C interface. The power consumption can be reduced to less than 1μA when powered down. Operate on supplies from 2.25V to 3.3V with an I²C supply from 1.7V to 3.6V, the ISL76682 is specified for operation across the -40°C to +105°C ambient temperature range.
Parameters
| Attributes | Value |
|---|---|
| Peak Spectral Sensitivity (nm) | 520 |
| VS (Min) (V) | 2.25 |
| VS (Max) (V) | 3.3 |
| ICC | 55 |
| Dark ADC Code @ Ev=0Lux (Max) (Counts) | 5 |
| Enable | Yes |
| Interface | I2C |
| Lux Range (lux) | - |
| Counts/Lux (Max) (Counts) | 65 |
| Resolution (bits) | 16 |
| Gain Selection | Yes |
| Qualification Level | Automotive |
| Temp. Range (°C) | -40 to +85°C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| ODFN | 2.0 x 2.1 x 0.00 | 6 | 0.7 |
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Additional Applications
- Automotive ambient light sensing
- Auto-dimming rear view mirror
- Central display and cluster dimming
- Industrial and medical light sensing