SI1133

Si1133 Data Sheet UV Index/Ambient Light Sensor IC with I2C Interface The Si1133 is a UV Index Sensor and Ambient Light Sensor with I2C digital interface and programmable-event interrupt output. This sensor IC includes dual 23-bit analog-to-digital converters, integrated high-sensitivity array of UV, visible and infrared photodiodes, and digital signal processor. The Si1133 is provided in a 10-lead 2x2 mm DFN package and capable of operation from 1.62 to 3.6 V over the –40 to +85 °C temperature range. Applications Wearables Handsets Display backlighting control Consumer electronics 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 silabs.com | Smart. Connected. Energy-friendly. Rev. 0.91 1. Feature List High accuracy UV index sensor Matches erythermal curve Ambient light sensor <100 mlx resolution possible, allowing operation under dark glass<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 ...