TSL2591 datasheet(2/34 Pages) OSRAM

2 / 34 page

Datasheet, Public

Page 1

[v3-00] 2023-Feb-08

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TSL2591

Light-to-Digital Converter

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.

Figure 1:

Added Value of Using TSL2591

Benefits

Features

• Approximates Human Eye Response

• Dual Diode

• Flexible Operation

• Programmable Analog Gain and Integration Time

• Suited for Operation Behind Dark Glass

• 600M:1 Dynamic Range

• Low Operating Overhead

• Two Internal Interrupt Sources

• Programmable Upper and Lower Thresholds

• One Interrupt Includes Programmable Persistence Filter

• Low Power 3.0 μA Sleep State

• User Selectable Sleep Mode

• I²C Fast Mode Compatible Interface

• Data Rates up to 400 kbit/s

• Input Voltage Levels Compatible with 3.0V Bus

General Description

TSL2591 Datasheet(PDF) 2 Page - OSRAM GmbH