Ambient Light Sensor Chip - WH681117
I2C interface (high-speed mode, sampling rate 400 kHz/s)
Dedicated interrupt pin
Power supply voltage range from 1.7V to 3.6V
Operating current as low as 10 microamps (typical)
Operating temperature range from -40°C to +85°C
Product Introduction
The WH681117 features ambient light sensing (ALS) detection. This ALS technology simulates the human eye's response to light intensity under different lighting conditions and attenuation materials. The WH681117 can detect a wide range of lighting conditions from dark environments to direct sunlight, and supports a programmable hardware interrupt mechanism with hysteresis to respond to various events.
I. Ambient Light Sensor Chip -Features of WH681117:
Dedicated interrupt pin
Power supply voltage range from 1.7V to 3.6V
Operating current as low as 10 microamps (typical)
Operating temperature range from -40°C to +85°C
Ambient light photodiode:
-Approximately matches human eye response
- High23-bit digital output (0~8,388,607)
-Programmable gain up to x2048
-Linear output code with dynamic range selection
-Eliminates 50/60 Hz filter via programmable integration timer
-Fluorescent lamp flicker resistance
Package-level trimming via software
II. Ambient Light Sensor Chip -Applications of WH681117:
Display backlight control
Wearable electronic devices
Lighting control systems
Tablets and laptops
Cameras, camcorders, video cameras
