TSL2560 Datasheet, PDF (1/42 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – LIGHT-TO-DIGITAL CONVERTER

r
r
D Approximates Human Eye Response
D Programmable Interrupt Function with
User-Defined Upper and Lower Threshold
Settings
D 16-Bit Digital Output with SMBus (TSL2560)
at 100 kHz or I²C (TSL2561) Fast-Mode at
400 kHz
D Programmable Analog Gain and Integration
Time Supporting 1,000,000-to-1 Dynamic
Range
D Automatically Rejects 50/60-Hz Lighting
Ripple
D Low Active Power (0.75 mW Typical) with
Power Down Mode
D RoHS Compliant
TSL2560, TSL2561
LIGHT-TO-DIGITAL CONVERTER
TAOS059Q − NOVEMBER 2009
PACKAGE CS
6-LEAD CHIPSCALE
(TOP VIEW)
V_DD 1
ADDR SEL 2
GND 3
6 SDA
5 INT
4 SCL
V_DD 1
ADDR SEL 2
GND 3
PACKAGE T
6-LEAD TMB
(TOP VIEW)
6 SDA
5 INT
4 SCL
Description
The TSL2560 and TSL2561 are light-to-digital
converters that transform light intensity to a digital
signal output capable of direct I²C (TSL2561) or
SMBus (TSL2560) interface. Each device com-
bines 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 TSL2560 device
permits an SMB-Alert style interrupt, and the
TSL2561 device supports a traditional level style
interrupt that remains asserted until the firmware
clears it.
PACKAGE FN
DUAL FLAT NO-LEAD
(TOP VIEW)
V_DD 1
ADDR SEL 2
GND 3
6 SDA
5 INT
4 SCL
SDA 5
PACKAGE CL
6-LEAD ChipLED
(TOP VIEW)
4 SCL
INT 6
3 ADDR SEL
V_DD 1
2 GND
Package Drawings are Not to Scale
While useful for general purpose light sensing applications, the TSL2560/61 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 TSL2560/61 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.
The LUMENOLOGY r Company
r
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 2009, TAOS Inc.
1