Ambient light and proximity detection sensors with improved dynamic range
The TSL2x72 Series includes three device families including digital ambient light sensors (TSL2572), proximity detection sensors (TSL2672) and integrated digital ambient light and proximity detection sensors (TSL2772). The TSL2x72 Series enhances mobile products by providing ALS and proximity detection operation in environments over 60,000 lux (sunlight). The improved dynamic range is enabled by the device’s new programmable gain modes, including a reduced gain mode. Proximity detection enhancements consist of increased signal-to-noise performance and a programmable register which allows compensation for optical signal crosstalk.
Power management is improved with an automatic power-down mode after interrupt, which provides a ‘run-once’ capability, and further reduces system power consumption. The TSL2x72 Series is based on the patented TAOS dual-diode architecture which enables the devices to produce accurate ALS and proximity detection results when operating behind spectrally distorting glass regardless of the lighting sources (e.g. sunlight, fluorescent) and intensity. The TSL2x72 devices are register set, footprint, and pin compatible with their predecessor TSL2x71 Series. They incorporate an IR LED current-limited driver, analog-to-digital conversion (ADC), interrupt capability, multiple I2C interface voltage options (3.0V or 1.8V) and flexible programming allowing it to be configured into many different applications. The sensors are packaged in cost-effective 2x2mm dual flat no-lead package.
Visit TAOS at www.taosinc.com
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