maxim推出MAX44000集成环境光和接近检测传感器

MAX44000集成环境光和接近检测传感器是业内功耗最低的环境光和接近检测传感器，提供可靠测量。

MAX44000介绍

The MAX44000 combines a wide-dynamic range ambient light sensor with an integrated infrared proximity sensor. This sensor IC is an ideal solution for touch-screen portable devices.

Its ambient sensor has the ability to make wide dynamic range (0.03 lux to 65,535 lux) measurements. The on-chip IR proximity detector is matched with an integrated IR LED transmitter to improve noise immunity. All readings are available through an I²C communication bus. A programmable interrupt pin minimizes the need to poll the device for data, freeing up microcontroller resources, reducing system software overhead and, ultimately, reducing power consumption.

The IC is designed to drive an external IR LED and can operate from a V_DD of 1.7V to 3.6V. It consumes just 5µA operating current when only the ambient light sensor is enabled, and 7µA when the proximity receiver and driver are enabled. In ambient plus proximity mode, it consumes as low as 11µA, including external IR LED current.

MAX44000关键特性

• Low-Power Operation
  • 5µA in Ambient Mode
  • 7µA in Proximity Mode
  • 11µA in Ambient Plus Proximity Mode, Including IR LED Current
• Excellent Light-Source Matching
• Programmable Green- and IR-Channel Gains
• Integrated Single-Pulse IR LED Driver
  • 10mA to 110mA Programmable Range
  • Internal Ambient Cancellation
• -40°C to +105°C Temperature Range
• Tiny, 2mm x 2mm x 0.6mm UTDFN-Opto Package