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TSL2563FN

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
1
The LUMENOLOGY r Company
r
r
Copyright E 2010, TAOS Inc.
www.taosinc.com
D Approximates Human Eye Response
D Programmable Interrupt Function with
User-Defined Upper and Lower Threshold
Settings
D 16-Bit Digital Output with SMBus (TSL2562)
at 100 kHz or I
2
C (TSL2563) 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 2.5-V Input Voltage and 1.8-V Digital
Output
D Low Active Power (0.6 mW Typical) with
Power Down Mode
D RoHS Compliant
Description
The TSL2562 and TSL2563 are low-voltage
light-to-digital converters that transform light
intensity to a digital signal output capable of direct
I
2
C (TSL2563) or SMBus (TSL2562) interface.
Each device combines one broadband photo-
diode (visible plus infrared) and one infrared-re-
sponding photodiode on a single CMOS inte-
grated circuit capable of providing a near-photop-
ic 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
TSL2562 device permits an SMB-Alert style
interrupt, and the TSL2563 device supports a
traditional level style interrupt that remains
asserted until the firmware clears it.
While useful for general purpose light sensing applications, the TSL2562/63 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 TSL2562/63 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.
r
r
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
6 SDA
5 INT
4 SCL
PACKAGE T
6-LEAD TMB
(TOP VIEW)
V
DD
1
ADDR SEL 2
GND 3
PACKAGE CS
6-LEAD CHIPSCALE
(TOP VIEW)
V
DD
1
ADDR SEL 2
GND 3
6 SDA
5 INT
4 SCL
Package Drawings are Not to Scale
PACKAGE FN
DUAL FLAT NO-LEAD
(TOP VIEW)
6 SDA
5 INT
4 SCL
V
DD
1
ADDR SEL 2
GND 3
PACKAGE CL
6-LEAD ChipLED
(TOP VIEW)
4 SCL
3 ADDR SEL
2 GND
SDA 5
INT 6
V
DD
1
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
2
r
r
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
www.taosinc.com
Functional Block Diagram
Two-Wire Serial Interface
Address Select Interrupt
SDA
V
DD
= 2.4 V to 2.6 V
Channel 0
Visible and IR
Channel 1
IR Only
Command
Register
ADC
Register
INT
SCL
ADDR SEL
Integrating
A/D Converter
Detailed Description
The TSL2562 and TSL2563 are second-generation ambient light sensor devices. Each contains two integrating
analog-to-digital converters (ADC) that integrate currents from two photodiodes. Integration of both channels
occurs simultaneously. Upon completion of the conversion cycle, the conversion result is transferred to the
Channel 0 and Channel 1 data registers, respectively. The transfers are double-buffered to ensure that the
integrity of the data is maintained. After the transfer, the device automatically begins the next integration cycle.
Communication to the device is accomplished through a standard, two-wire SMBus or I
2
C serial bus.
Consequently, the TSL256x device can be easily connected to a microcontroller or embedded controller. No
external circuitry is required for signal conditioning, thereby saving PCB real estate as well. Since the output
of the TSL256x device is digital, the output is effectively immune to noise when compared to an analog signal.
The TSL256x devices also support an interrupt feature that simplifies and improves system efficiency by
eliminating the need to poll a sensor for a light intensity value. The primary purpose of the interrupt function is
to detect a meaningful change in light intensity. The concept of a meaningful change can be defined by the user
both in terms of light intensity and time, or persistence, of that change in intensity. The TSL256x devices have
the ability to define a threshold above and below the current light level. An interrupt is generated when the value
of a conversion exceeds either of these limits.
Available Options
DEVICE INTERFACE PACKAGE − LEADS PACKAGE DESIGNATOR ORDERING NUMBER
TSL2562 SMBus Chipscale CS TSL2562CS
TSL2562 SMBus TMB-6 T TSL2562T
TSL2562 SMBus Dual Flat No-Lead − 6 FN TSL2562FN
TSL2562 SMBus ChipLED-6 CL TSL2562CL
TSL2563 I
2
C Chipscale CS TSL2563CS
TSL2563 I
2
C TMB-6 T TSL2563T
TSL2563 I
2
C Dual Flat No-Lead − 6 FN TSL2563FN
TSL2563 I
2
C ChipLED-6 CL TSL2563CL
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
3
The LUMENOLOGY r Company
r
r
Copyright E 2010, TAOS Inc.
www.taosinc.com
Terminal Functions
TERMINAL
NAME
CS, T, FN
PKG
NO.
CL
PKG
NO.
TYPE
DESCRIPTION
ADDR SEL 2 3 I SMBus device select — three-state
GND 3 2 Power supply ground. All voltages are referenced to GND.
INT 5 6 O Level or SMB Alert interrupt — open drain.
SCL 4 4 I SMBus serial clock input terminal — clock signal for SMBus serial data.
SDA 6 5 I/O SMBus serial data I/O terminal — serial data I/O for SMBus.
V
DD
1 1 Supply voltage.
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
DD
(see Note 1) 3.8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital output voltage range, V
O
−0.5 V to 3.8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital output current, I
O
−1 mA to 20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
−40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESD tolerance, human body model 2000 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltages are with respect to GND.
Recommended Operating Conditions
MIN NOM MAX UNIT
Supply voltage, V
DD
2.38 2.5 3 V
Operating free-air temperature, T
A
−30 70 °C
SCL, SDA input low voltage, V
IL
−0.5 0.58 V
SCL SDA input high voltage V
2.38 ≤ V
DD
≤ 2.62 1.13 3.6 V
SCL, SDA input high voltage, V
IH
2.38 ≤ V
DD
≤ 3 1.25 3.6 V
Electrical Characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
Supply current
Active
0.24 0.6 mA
I
DD
Supply current
Power down
3.2 15 μA
V
INT SDA output low voltage
3 mA sink current 0
0.4 V
V
OL
INT, SDA output low voltage
6 mA sink current 0
0.6 V
I
LEAK
Leakage current −5 5 μA
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TSL2563FN

Mfr. #:
Buy TSL2563FN
Manufacturer:
ams
Description:
Light to Digital Converters Ambient Light Sensor Light to Digital
Lifecycle:
New from this manufacturer.
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