General Description
The TSL2540 is a very-high sensitivity light-to-digital converter that transforms light intensity into a digital signal output capable of direct I²C interface. The ALS sensor features 2 output channels, a visible channel and an IR channel. The visible channel has a photodiode with a UV and IR blocking filter whereas the IR channel has a photodiode with an IR pass filter. Each channel has a dedicated data converter producing a 16-bit output. This architecture allows applications to accurately measure ambient light which enables devices to calculate illuminance to control a display backlight.

FEATUREs
• 2.0mm x 2.0mm x 0.5mm
• Power management features
• I²C fast mode interface compatible
• Photopic ambient light sense (ALS)
• UV / IR blocking filter
• Programmable gain and integration time
• 1.8V power supply with 1.8V I²C bus

Benefits
• Single device integrated optical solution
• Accurate ambient light sensing
• Reduced power consumption

APPLICATIONs
The TSL2540 applications include:
• Ambient light sensing
• Display backlight control