Light-to-Digital Converter. TSL2561 Datasheet

TSL2561 Converter. Datasheet pdf. Equivalent

TSL2561 Datasheet
Recommendation TSL2561 Datasheet
Part TSL2561
Description Light-to-Digital Converter
Feature TSL2561; General Description TSL2561 Light-to-Digital Converter The TSL2561 are light-to-digital converters .
Manufacture ams
Download TSL2561 Datasheet

ams TSL2561
General Description
Light-to-Digital Converter
The TSL2561 are light-to-digital converters that transform light
intensity to a digital signal output capable of direct I²C
interface. Each device combines one broadband photodiode
(visible plus infrared) and one infrared-responding photodiode
on a single CMOS integrated circuit capable of providing a
near-photopic response over an effective 20-bit dynamic range
(16-bit resolution). Two integrating ADCs convert the
photodiode currents to 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 TSL2561 device
supports a traditional level style interrupt that remains asserted
until the firmware clears it.
While useful for general purpose light sensing applications, the
TSL2561 devices are designed particularly for display panels
(LCD, OLED, etc.) with the purpose of extending battery life and
providing optimum viewing in diverse lighting conditions.
Display panel backlighting, which can account for up to 30 to
40 percent of total platform power, can be automatically
managed. Both devices are also ideal for controlling keyboard
illumination based upon ambient lighting conditions.
Illuminance information can further be used to manage
exposure control in digital cameras. The TSL2561 devices are
ideal in notebook/tablet PCs, LCD monitors, flat-panel
televisions, cell phones, and digital cameras. In addition, other
applications include street light control, security lighting,
sunlight harvesting, machine vision, and automotive
instrumentation clusters.
Ordering Information and Content Guide appear at end of
ams Datasheet
[v1-01] 2018-Apr-23
Page 1
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ams TSL2561
TSL2561 − General Description
Figure 1:
Added Value of Using TSL2561
Key Benefits & Features
The benefits and features of TSL2561, Light-to-Digital
Converter is listed below:
Enables Operation in IR Light Environments Patented Dual-Diode Architecture
Enables Dark Room to High Lux Sunlight
1M:1 Dynamic Range
Reduces Micro-Processor Interrupt
Programmable Interrupt Function
Digital Interface is Less Susceptible to
I2C Digital Interface
Reduces Board Space Requirements while
Simplifying Designs
Available in 2.6mm x 3.8mm TMB Packages
Approximates Human Eye Response
Programmable Interrupt Function with User-Defined
Upper and Lower Threshold Settings
16-Bit Digital Output with I²C Fast-Mode at 400kHz
Programmable Analog Gain and Integration Time
Supporting 1,000,000-to-1 Dynamic Range
Automatically Rejects 50/60Hz Lighting Ripple
Low Active Power (0.75mW typical) with Power Down
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ams Datasheet
[v1-01] 2018-Apr-23

ams TSL2561
TSL2561 − General Description
Figure 2:
TSL2561 Block Diagram
Block Diagram
The functional blocks of this device are shown below:
VDD = 2.7 V to 3.5 V
Channel 0
Visible and IR
Channel 1
IR Only
A/D Converter
Address Select
Two-Wire Serial Interface
ams Datasheet
[v1-01] 2018-Apr-23
Page 3
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