SI1133 Overview
Functional Description The Si1133 is a UV and Ambient Light sensor whose operational state is controlled through registers accessible through the I2C interface. The host can mand the Si1133 to initiate on-demand UV or Ambient Light measurement. The host can also place the Si1133 in an autonomous operational state where it performs measurements at set intervals and interrupts the host either after each measurement is...
SI1133 Key Features
- High accuracy UV index sensor (0 to > 20 uV)
- Matches erythermal curve
- Ambient light sensor
- <100 mlx resolution possible, allowing operation under dark glass
- Up to 128 klx dynamic range possible across two ADC range settings
- Industry’s lowest power consumption
- 1.62 to 3.6 V supply voltage
- <500 nA standby current
- Internal and external wake support
- Built-in voltage supply monitor and power-on reset controller