SI1151-AB00-GMR

Si115x Data Sheet Proximity/Ambient Light Sensor IC with I2C Interface KEY FEATURES The Si115x-AB00/AB09/AB9x is an ambient light sensor, proximity, and gesture detector with I2C digital interface and programmable-event interrupt output. This touchless sensor IC includes dual 23-bit analog-to-digital converters, an integrated high-sensitivity array of visible and infrared photodiodes, a digital signal processor, and up to three integrated LED drivers with programmable drive levels. The Si115x offers excellent performance under a wide dynamic range and a variety of light sources, including direct sunlight. The Si115x can also work under dark glass covers. The photodiode response and associated digital conversion circuitry provide excellent immunity to artificial light flicker noise and natural light flutter noise. With two or more LEDs, the Si115x is capable of supporting multiple-axis proximity motion detection. The Si115x is provided in a 10-lead 2x2 mm DFN package or in a 10-lead 2.9x4.9 mm LGA module with integrated LED, and is capable of operation from 1.62 to 3.6 V over the –40 to +85 °C temperature range. VDD Internal Osc. Regulator • Up to three independent LED drivers. • 30 current settings from 5.6 mA to 360 mA for each LED driver. • Operates in direct sunlight with optional on-die 940 nm passband filter. • On die 940 bandpass filter that rejects unwanted visible light and IR from daylight and other sources (Si115xAB09/AB9X). • Up to 128 klx dynamic range possible across two ADC range settings. . . MUX 940 nm Bandpass Filter. • From under 1 cm, to 200 cm with additional lensing (e.g., 5 mm hemispherical lens as in our EVB). • Ambient light sensor •