TSL2583FN Datasheet, PDF (2/33 Pages) List of Unclassifed Manufacturers – LIGHT-TO-DIGITAL CONVERTER

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TSL2581, TSL2583
LIGHT-TO-DIGITAL CONVERTER
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TAOS134A − JULY 2012
Features
D 30y More Sensitive Than the TSL2560/61
Device
PACKAGE CS
6-LEAD CHIPSCALE
(TOP VIEW)
D Approximates Human Eye Response
V_DD 1
6 SDA
D Programmable ALS Interrupt Function with
ADDR SEL 2
5 INT
User-Defined Upper and Lower Threshold
Settings
D 16-Bit Digital Output with I²C Fast-Mode at
lid ^{400 kHz}
D Programmable Analog Gain and Integration
Time Supporting 1,000,000-to-1 Dynamic
Range
a _{D Available in Ultra-Small 1.25 mm y 1.75 mm}
v Chipscale Package and Small 2 mm y 2 mm
Flat No-Lead Package
ill D Automatically Rejects 50/60-Hz Lighting
Ripple
t D Low Quiescent Current 3 mA in Power
Down Mode
G _{s D RoHS Compliant}
GND 3
4 SCL
PACKAGE FN
DUAL FLAT NO-LEAD
(TOP VIEW)
V_DD 1
ADDR SEL 2
GND 3
6 SDA
5 INT
4 SCL
Package Drawings are Not to Scale
A ^t _Applications
s ^{n D Ambient Light Sensor (ALS) for Display}
am ^{nte Brightness Control}
End Products and Market Segments
D HDTVs
D Laptops and Tablets
D Mobile Handsets
D Monitors
o _Description
c _{The TSL2581 and TSL2583 are very-high sensitivity 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
l _{plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit capable of providing}
a ^{a near-photopic response over an effective 16-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.
ic ^{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 TSL2581 device supports a traditional level
style interrupt that remains asserted until the firmware clears it.
n _{While useful for general purpose light sensing applications, the TSL2581/83 devices are designed particularly}
for displays (LCD, OLED, etc.) with the purpose of extending battery life and providing optimum viewing in
h _{diverse lighting conditions. Display panel backlighting, which can account for up to 50 to 60 percent of total}
c ^{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
econtrol in digital cameras. The TSL2581/83 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
Tlighting, sunlight harvesting, machine vision, and automotive instrumentation clusters.
The LUMENOLOGY r Company
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Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972_r) 673-0759
www.taosinc.com
Copyright E 2012, TAOS Inc.
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