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Si115x
Proximity and Ambient Light Sensor IC with I2C Interface
Our Si115x solutions are ambient light sensors, proximity and gesture detectors with an I2C digital interface and programmable-event interrupt output. Si115x sensor ICs include 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.
- Proximity detector
- Proximity detection adjustable from under 1 cm up to 200 cm
- Up to 3 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 (Si115x-09, Si1153-9x)
- Industry's lowest power consumption
- 1.62 to 3.6 V supply voltage
- 9 µA average current (LED pulsed 24.4 µs every 800 ms at 180 mA plus 3 µA Si115x supply)
- < 500 nA standby current
- 24.4 µs LED "on" time keeps total power consumption duty cycle low without compromising performance or noise community
- Internal and external wake support
- Built-in voltage supply monitor and power-on reset controller
- Ambient light sensor
- < 100 mlx resolution possible, allowing operation under dark glass
- Up to 128 klx dynamic range possible across two ADC range settings
- I²C serial communications
- Up to 400 kbps data rate
- Slave mode hardware address decoding
- Two package options
- 10-lead 2 x 2 x 0.65 mm QFN
- 10-lead 2.9 x 4.9 x 1.2 mm module with integrated 940 nm LED
- Temperature Range: – 40 to +85 °C
The manufacturer Silicon Labs from Austin / Texas, specialized in Bluetooth, Bluetooth Smart and Wifi technologies, offers an extensive family of various Bluetooth, Bluetooth Smart and Wifi modules for use in industry, medicine, telemetry, telematics, M2M and mobile systems.
