TSL2591

TSL2591 Light-to-Digital Converter General Description Figure 1: Added Value of Using TSL2591 The TSL2591 is a very-high sensitivity light-to-digital converter that transforms light intensity into a digital signal output capable of direct I²C interface. The device combines one broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit. Two integrating ADCs convert the photodiode currents into a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human eye response. The TSL2591 supports a traditional level style interrupt that remains asserted until the firmware clears it. Ordering Information and Content Guide appear at end of datasheet. Benefits Approximates Human Eye Response Flexible Operation Suited for Operation Behind Dark Glass Low Operating Overhead Low Power 3.0 μA Sleep State I²C Fast Mode Compatible Interface Features Dual Diode Programmable Analog Gain and Integration Time 600M:1 Dynamic Range Two Internal Interrupt Sources Programmable Upper and Lower Thresholds One Interrupt Includes Programmable Persistence Filter User Selectable Sleep Mode Data Rates up to 400 kbit/s Input Voltage Levels Compatible with 3.0V Bus Datasheet, Public [v3-00] 2023-Feb-08 Page 1 Document Feedback Figure 2: Block ...