TSL2562FN

TAOS Inc.
is now
ams AG
The technical content of this TAOS datasheet is still valid.
Contact information:
Headquarters:
ams AG
Tobelbaderstrasse 30
8141 Unterpremstaetten, Austria
Tel: +43 (0) 3136 500 0
e-Mail: [email protected]
Please visit our website at www.ams.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
r
r
TAOS066N − AUGUST 2010
D Approximates Human Eye Response
D Programmable Interrupt Function with
D
D
Description
PACKAGE T
6-LEAD TMB
(TOP VIEW)
VDD 1
ADDR SEL 2
6 SDA
5 INT
am
lc s
on A
te G
nt
st
il
D
4 SCL
GND 3
D Automatically Rejects 50/60-Hz Lighting
Ripple
Low 2.5-V Input Voltage and 1.8-V Digital
Output
Low Active Power (0.6 mW Typical) with
Power Down Mode
RoHS Compliant
5 INT
ADDR SEL 2
al
id
D
6 SDA
VDD 1
lv
D
User-Defined Upper and Lower Threshold
Settings
16-Bit Digital Output with SMBus (TSL2562)
at 100 kHz or I2C (TSL2563) Fast-Mode at
400 kHz
Programmable Analog Gain and Integration
Time Supporting 1,000,000-to-1 Dynamic
Range
PACKAGE CS
6-LEAD CHIPSCALE
(TOP VIEW)
ni
ca
The TSL2562 and TSL2563 are low-voltage
light-to-digital converters that transform light
intensity to a digital signal output capable of direct
I2C (TSL2563) or SMBus (TSL2562) 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
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.
4 SCL
GND 3
PACKAGE FN
DUAL FLAT NO-LEAD
(TOP VIEW)
6 SDA
VDD 1
5 INT
ADDR SEL 2
4 SCL
GND 3
PACKAGE CL
6-LEAD ChipLED
(TOP VIEW)
SDA 5
4 SCL
INT 6
3 ADDR SEL
VDD 1
2 GND
Package Drawings are Not to Scale
Te
ch
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.
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972)
r 673-0759
www.taosinc.com
1
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
Functional Block Diagram
Channel 0
Visible and IR
Channel 1
IR Only
VDD = 2.4 V to 2.6 V
Command
Register
Address Select
ADDR SEL
ADC
Register
Interrupt
al
id
Integrating
A/D Converter
INT
SCL
Two-Wire Serial Interface
lv
SDA
am
lc s
on A
te G
nt
st
il
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 I2C 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.
Available Options
DEVICE
INTERFACE
TSL2562
PACKAGE − LEADS
PACKAGE DESIGNATOR
Chipscale
CS
TSL2562CS
SMBus
TMB-6
T
TSL2562T
SMBus
FN
TSL2562FN
SMBus
ChipLED-6
CL
TSL2562CL
CS
TSL2563CS
Dual Flat No-Lead − 6
TSL2563
I2C
Chipscale
TSL2563
I2C
TMB-6
T
TSL2563T
TSL2563
I2C
Dual Flat No-Lead − 6
FN
TSL2563FN
TSL2563
I2C
ChipLED-6
CL
TSL2563CL
TSL2562
Te
ch
TSL2562
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
2
ORDERING NUMBER
SMBus
ni
TSL2562
ca
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.
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
Terminal Functions
TERMINAL
CS, T, FN
PKG
NO.
CL
PKG
NO.
ADDR SEL
2
3
GND
3
2
INT
5
6
SCL
4
SDA
6
VDD
1
1
TYPE
I
DESCRIPTION
SMBus device select — three-state
Power supply ground. All voltages are referenced to GND.
O
Level or SMB Alert interrupt — open drain.
4
I
SMBus serial clock input terminal — clock signal for SMBus serial data.
5
I/O
al
id
NAME
SMBus serial data I/O terminal — serial data I/O for SMBus.
lv
Supply voltage.
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)†
†
am
lc s
on A
te G
nt
st
il
Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8 V
Digital output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 3.8 V
Digital output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −1 mA to 20 mA
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −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
Supply voltage, VDD
MIN
NOM
2.38
2.5
MAX
UNIT
3
V
Operating free-air temperature, TA
−30
70
°C
SCL, SDA input low voltage, VIL
−0.5
0.58
V
2.38 ≤ VDD ≤ 2.62
1.13
3.6
V
2.38 ≤ VDD ≤ 3
1.25
3.6
V
ca
SCL SDA input high voltage,
SCL,
voltage VIH
ni
Electrical Characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
Supply current
VOL
INT SDA output low voltage
INT,
I LEAK
Leakage current
MIN
Active
Power down
The LUMENOLOGY r Company
TYP
MAX
UNIT
0.24
0.6
mA
3.2
15
μA
V
3 mA sink current
0
0.4
6 mA sink current
0
0.6
V
−5
5
μA
Te
ch
IDD
TEST CONDITIONS
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
3
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
Operating Characteristics, High Gain (16), VDD = 2.5 V, TA = 25C, (unless otherwise noted) (see
Notes 2, 3, 4, 5)
Oscillator frequency
Dark ADC count value
Ee = 0
0, Tint = 402 ms
Tint > 178 ms
Full scale ADC count
value (Note 6)
Tint = 101 ms
Tint = 13.7
13 7 ms
ADC count value
ADC countt value
l ratio:
ti
Ch1/Ch0
Illuminance responsivity,
low gain mode (Note 7)
Te
(Sensor Lux) /
(actual Lux),
Lux) high gain
mode (Note 8)
Copyright E 2010, TAOS Inc.
MIN
TYP
MAX
690
735
780
690
735
780
4
0
4
4
0
4
Ch0
65535
Ch1
65535
Ch0
37177
Ch1
37177
Ch0
5047
Ch1
5047
Ch0
750
Ch1
λp = 940 nm, Tint = 101 ms
Ee = 135 μW/cm2
Ch0
1000
1250
200
700
Ch1
1000
kHz
counts
65535
37177
37177
counts
5047
5047
counts
1300
820
750
Ch1
1000
1250
190
700
Ch1
1000
1300
counts
850
0 15
0.15
0 20
0.20
0.25
0 25
0.14
0 14
0 19
0.19
0.24
0 24
λp = 940 nm,
nm Tint = 101 ms
0 69
0.69
0 82
0.82
0.95
0 95
0.70
0 70
0 85
0.85
1
Ch0
27.5
24.4
Ch1
5.5
4.6
Ch0
8.4
7.4
Ch1
6.9
6.3
Fluorescent light source:
Tint = 402 ms
Ch0
36
35
Ch1
4
3.8
Incandescent light source:
Tint = 402 ms
Ch0
144
129
Ch1
72
67
0.11
0.11
05
0.5
0 52
0.52
Fluorescent light source:
Tint = 402 ms
Incandescent light source:
Tint = 402 ms
Fluorescent light source:
Tint = 402 ms
Ch0
2.3
2.2
Ch1
0.25
0.24
Incandescent light source:
Tint = 402 ms
Ch0
9
8.1
Ch1
4.5
4.2
counts/
(μW/
cm2)
counts/
lux
counts/
lux
Fluorescent light source:
Tint = 402 ms
0.65
1
1.35
0.65
1
1.35
Incandescent light source:
Tint = 402 ms
0.60
1
1.40
0.60
1
1.40
The LUMENOLOGY r Company
r
r
4
UNIT
65535
λp = 640 nm,
nm Tint = 101 ms
ch
Rv
MAX
0
Ch0
ni
ADC count value ratio:
Ch1/Ch0
TYP
0
λp = 640 nm, Tint = 101 ms
Ee = 41 μW/cm2
ca
Illuminance responsivity
MIN
Ch1
λp = 940 nm, Tint = 101 ms
Ee = 119 μW/cm2
λp = 940 nm,
nm Tint = 101 ms
Rv
TSL2562CS, TSL2563CS
Ch0
Ch0
λp = 640 nm,
nm Tint = 101 ms
Irradiance responsivity
TSL2562T, FN, & CL
TSL2563T, FN, & CL
am
lc s
on A
te G
nt
st
il
λp = 640 nm, Tint = 101 ms
Ee = 36.3 μW/cm2
Re
CHANNEL
al
id
fosc
TEST CONDITIONS
lv
PARAMETER
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
Te
ch
ni
ca
am
lc s
on A
te G
nt
st
il
lv
al
id
NOTES: 2. Optical measurements are made using small-angle incident radiation from light-emitting diode optical sources. Visible 640 nm LEDs
and infrared 940 nm LEDs are used for final product testing for compatibility with high-volume production.
3. The 640 nm irradiance Ee is supplied by an AlInGaP light-emitting diode with the following characteristics: peak wavelength
λp = 640 nm and spectral halfwidth Δλ½ = 17 nm.
4. The 940 nm irradiance Ee is supplied by a GaAs light-emitting diode with the following characteristics: peak wavelength
λp = 940 nm and spectral halfwidth Δλ½ = 40 nm.
5. Integration time Tint, is dependent on internal oscillator frequency (fosc) and on the integration field value in the timing register as
described in the Register Set section. For nominal fosc = 735 kHz, nominal Tint = (number of clock cycles)/fosc.
Field value 00: Tint = (11 × 918)/fosc = 13.7 ms
Field value 01: Tint = (81 × 918)/fosc = 101 ms
Field value 10: Tint = (322 × 918)/fosc = 402 ms
Scaling between integration times vary proportionally as follows: 11/322 = 0.034 (field value 00), 81/322 = 0.252 (field value 01),
and 322/322 = 1 (field value 10).
6. Full scale ADC count value is limited by the fact that there is a maximum of one count per two oscillator frequency periods and also
by a 2-count offset.
Full scale ADC count value = ((number of clock cycles)/2 − 2)
Field value 00: Full scale ADC count value = ((11 × 918)/2 − 2) = 5047
Field value 01: Full scale ADC count value = ((81 × 918)/2 − 2) = 37177
Field value 10: Full scale ADC count value = 65535, which is limited by 16 bit register. This full scale ADC count value is reached
for 131074 clock cycles, which occurs for Tint = 178 ms for nominal fosc = 735 kHz.
7. Low gain mode has 16 lower gain than high gain mode: (1/16 = 0.0625).
8. The sensor Lux is calculated using the empirical formula shown on p. 22 of this data sheet based on measured Ch0 and Ch1 ADC
count values for the light source specified. Actual Lux is obtained with a commercial luxmeter. The range of the (sensor Lux) / (actual
Lux) ratio is estimated based on the variation of the 640 nm and 940 nm optical parameters. Devices are not 100% tested with
fluorescent or incandescent light sources.
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
5
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
AC Electrical Characteristics, VDD = 3 V, TA = 25C (unless otherwise noted)
PARAMETER†
t(CONV)
TEST CONDITIONS
Conversion time
Clock frequency (I2C only)
f(SCL)
MIN
TYP
MAX
12
100
UNIT
400
ms
0
400
kHz
100
kHz
10
Bus free time between start and stop condition
1.3
μs
t(HDSTA)
Hold time after (repeated) start condition. After
this period, the first clock is generated.
0.6
μs
t(SUSTA)
Repeated start condition setup time
0.6
t(SUSTO)
Stop condition setup time
0.6
t(HDDAT)
Data hold time
t(SUDAT)
Data setup time
100
t(LOW)
SCL clock low period
1.3
μs
t(HIGH)
SCL clock high period
0.6
μs
t(TIMEOUT)
Detect clock/data low timeout (SMBus only)
25
tF
Clock/data fall time
tR
Clock/data rise time
Ci
Input pin capacitance
μs
μs
0.9
μs
lv
ns
am
lc s
on A
te G
nt
st
il
35
ms
300
ns
300
ns
10
pF
Specified by design and characterization; not production tested.
Te
ch
ni
ca
†
0
al
id
Clock frequency (SMBus only)
t(BUF)
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
6
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
PARAMETER MEASUREMENT INFORMATION
t(LOW)
t(R)
t(F)
VIH
SCL
VIL
t(HDSTA)
t(BUF)
t(HIGH)
t(SUSTA)
t(HDDAT)
t(SUSTO)
t(SUDAT)
al
id
VIH
SDA
VIL
S
S
Start
Condition
Start
P
Stop
t(LOWSEXT)
SCLACK
SCLACK
t(LOWMEXT)
t(LOWMEXT)
lv
P
Stop
Condition
t(LOWMEXT)
am
lc s
on A
te G
nt
st
il
SCL
SDA
Figure 1. Timing Diagrams
1
9
SCL
A6
SDA
A5
Start by
Master
A4
A3
A2
A1
A0
R/W
1
D7
D6
D5
D4
D3
D2
D1
ACK by
TSL256x
9
D0
ACK by Stop by
TSL256x Master
Frame 1 SMBus Slave Address Byte
Frame 2 Command Byte
1
A6
A5
A4
ch
SDA
ni
SCL
ca
Figure 2. Example Timing Diagram for SMBus Send Byte Format
A3
A2
A1
9
A0
R/W
Te
Start by
Master
1
D7
9
D6
D5
D4
D3
D2
D1
ACK by
TSL256x
Frame 1 SMBus Slave Address Byte
D0
NACK by Stop by
Master Master
Frame 2 Data Byte From TSL256x
Figure 3. Example Timing Diagram for SMBus Receive Byte Format
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
7
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
TYPICAL CHARACTERISTICS
SPECTRAL RESPONSIVITY
Channel 0
Photodiode
lv
0.6
0.4
am
lc s
on A
te G
nt
st
il
Normalized Responsivity
0.8
al
id
1
0.2
Channel 1
Photodiode
0
300
400
500
600
700
800
900 1000 1100
λ − Wavelength − nm
Figure 4
NORMALIZED RESPONSIVITY
vs.
ANGULAR DISPLACEMENT — CS PACKAGE
1.0
1.0
ca
0.4
ch
Te
0.6
0.4
0.2
−60
−30
0
30
60
− Angular Displacement − °
Copyright E 2010, TAOS Inc.
Optical Axis
Optical Axis
0.6
0
−90
Normalized Responsivity
0.8
ni
Normalized Responsivity
0.8
0.2
NORMALIZED RESPONSIVITY
vs.
ANGULAR DISPLACEMENT — T PACKAGE
90
0
−90
−60
−30
0
30
60
− Angular Displacement − °
Figure 5
Figure 6
The LUMENOLOGY r Company
r
r
8
90
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
0.8
0.8
0.4
0.2
0.4
0.2
−60
am
lc s
on A
te G
nt
st
il
0
−90
0.6
lv
0.6
al
id
1.0
Normalized Responsivity
1.0
Optical Axis
NORMALIZED RESPONSIVITY
vs.
ANGULAR DISPLACEMENT — CL PACKAGE
Optical Axis
Normalized Responsivity
NORMALIZED RESPONSIVITY
vs.
ANGULAR DISPLACEMENT — FN PACKAGE
−30
0
30
60
− Angular Displacement − °
90
0
−90
−60
−30
0
30
60
− Angular Displacement − °
Figure 7
90
Te
ch
ni
ca
Figure 8
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
9
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
PRINCIPLES OF OPERATION
Analog-to-Digital Converter
al
id
The TSL256x contains two integrating analog-to-digital converters (ADC) that integrate the currents from the
channel 0 and channel 1 photodiodes. Integration of both channels occurs simultaneously, and 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 invalid data is not read during the transfer. After
the transfer, the device automatically begins the next integration cycle.
Digital Interface
lv
Interface and control of the TSL256x is accomplished through a two-wire serial interface to a set of registers
that provide access to device control functions and output data. The serial interface is compatible with System
Management Bus (SMBus) versions 1.1 and 2.0, and I2C bus Fast-Mode. The TSL256x offers three slave
addresses that are selectable via an external pin (ADDR SEL). The slave address options are shown in Table 1.
am
lc s
on A
te G
nt
st
il
Table 1. Slave Address Selection
ADDR SEL TERMINAL LEVEL
SLAVE ADDRESS
SMB ALERT ADDRESS
GND
0101001
0001100
Float
0111001
0001100
VDD
1001001
0001100
NOTE: The Slave and SMB Alert Addresses are 7 bits. Please note the SMBus and I2C protocols on pages 9 through 12. A read/write bit should
be appended to the slave address by the master device to properly communicate with the TSL256X device.
SMBus and I2C Protocols
Each Send and Write protocol is, essentially, a series of bytes. A byte sent to the TSL256x with the most
significant bit (MSB) equal to 1 will be interpreted as a COMMAND byte. The lower four bits of the COMMAND
byte form the register select address (see Table 2), which is used to select the destination for the subsequent
byte(s) received. The TSL256x responds to any Receive Byte requests with the contents of the register
specified by the stored register select address.
The TSL256X implements the following protocols of the SMB 2.0 specification:
ca
Send Byte Protocol
Receive Byte Protocol
ni
Write Byte Protocol
Write Word Protocol
ch
Read Word Protocol
Block Write Protocol
Block Read Protocol
Te
D
D
D
D
D
D
D
The TSL256X implements the following protocols of the Philips Semiconductor I2C specification:
D I2C Write Protocol
D I2C Read (Combined Format) Protocol
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
10
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
When an SMBus Block Write or Block Read is initiated (see description of COMMAND Register), the byte
following the COMMAND byte is ignored but is a requirement of the SMBus specification. This field contains
the byte count (i.e. the number of bytes to be transferred). The TSL2562 (SMBus) device ignores this field and
extracts this information by counting the actual number of bytes transferred before the Stop condition is
detected.
al
id
When an I2C Write or I2C Read (Combined Format) is initiated, the byte count is also ignored but follows the
SMBus protocol specification. Data bytes continue to be transferred from the TSL2563 (I2C) device to Master
until a NACK is sent by the Master.
The data formats supported by the TSL2562 and TSL2563 devices are:
D Master transmitter transmits to slave receiver (SMBus and I2C):
−
The transfer direction in this case is not changed.
−
lv
D Master reads slave immediately after the first byte (SMBus only):
At the moment of the first acknowledgment (provided by the slave receiver) the master transmitter
becomes a master receiver and the slave receiver becomes a slave transmitter.
−
am
lc s
on A
te G
nt
st
il
D Combined format (SMBus and I2C):
During a change of direction within a transfer, the master repeats both a START condition and the slave
address but with the R/W bit reversed. In this case, the master receiver terminates the transfer by
generating a NACK on the last byte of the transfer and a STOP condition.
For a complete description of SMBus protocols, please review the SMBus Specification at
http://www.smbus.org/specs. For a complete description of I2C protocols, please review the I2C Specification
at http://www.semiconductors.philips.com.
1
7
1
1
8
1
1
S
Slave Address
Wr
A
Data Byte
A
P
X
X
Acknowledge (this bit position may be 0 for an ACK or 1 for a NACK)
P
Stop Condition
Rd
Read (bit value of 1)
S
Start Condition
Sr
Repeated Start Condition
Wr
Write (bit value of 0)
ni
ca
A
Shown under a field indicates that that field is required to have a value of X
...
Continuation of protocol
Te
ch
X
The LUMENOLOGY r Company
Master-to-Slave
Slave-to-Master
Figure 9. SMBus and I2C Packet Protocol Element Key
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
11
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
1
7
1
1
8
1
1
S
Slave Address
Wr
A
Data Byte
A
P
Figure 10. SMBus Send Byte Protocol
1
7
1
1
8
1
1
S
Slave Address
Rd
A
Data Byte
A
P
al
id
1
Figure 11. SMBus Receive Byte Protocol
7
1
1
S
Slave Address
Wr
A
8
Command Code
1
8
A
Data Byte
1
7
S
1
Slave Address
1
Wr
1
A
P
am
lc s
on A
te G
nt
st
il
Figure 12. SMBus Write Byte Protocol
1
lv
1
8
A
Command Code
1
1
7
1
1
8
1
1
A
S
Slave Address
Rd
A
Data Byte Low
A
P
1
Figure 13. SMBus Read Byte Protocol
1
7
1
S
Slave Address
Wr
1
8
1
8
1
8
1
1
A
Command Code
A
Data Byte Low
A
Data Byte High
A
P
Figure 14. SMBus Write Word Protocol
1
Slave Address
Wr
1
8
A
Command Code
1
1
7
1
1
8
1
A
S
Slave Address
Rd
A
Data Byte Low
A
8
Data Byte High
...
1
1
A
P
1
Figure 15. SMBus Read Word Protocol
Te
ch
ni
S
7
ca
1
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
12
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
1
S
1
1
Wr
A
7
Slave Address
8
Command Code
1
8
1
8
1
A
Byte Count = N
A
Data Byte 1
A
8
8
1
Data Byte 2
...
A
...
Data Byte N
1
1
A
P
Figure 16. SMBus Block Write or I2C Write Protocols
S
7
Slave Address
1
1
Wr
A
8
Command Code
8
Data Byte 1
1
1
7
1
1
8
A
Sr
Slave Address
Rd
A
Byte Count = N
1
A
8
Data Byte 2
1
A
1
A
...
8
...
lv
1
al
id
NOTE: The I2C write protocol does not use the Byte Count packet, and the Master will continue sending Data Bytes until the Master initiates a
Stop condition. See the Command Register on page 13 for additional information regarding the Block Read/Write protocol.
Data Byte N
1
1
A
P
1
am
lc s
on A
te G
nt
st
il
Figure 17. SMBus Block Read or I2C Read (Combined Format) Protocols
NOTE: The I2C read protocol does not use the Byte Count packet, and the Master will continue receiving Data Bytes until the Master initiates
a Stop Condition. See the Command Register on page 13 for additional information regarding the Block Read/Write protocol.
Register Set
The TSL256x is controlled and monitored by sixteen registers (three are reserved) and a command register
accessed through the serial interface. These registers provide for a variety of control functions and can be read
to determine results of the ADC conversions. The register set is summarized in Table 2.
Table 2. Register Address
ADDRESS
RESISTER NAME
−−
COMMAND
Specifies register address
CONTROL
Control of basic functions
0h
1h
2h
3h
4h
Integration time/gain control
THRESHLOWLOW
Low byte of low interrupt threshold
THRESHLOWHIGH
High byte of low interrupt threshold
THRESHHIGHLOW
Low byte of high interrupt threshold
THRESHHIGHHIGH
High byte of high interrupt threshold
ca
5h
TIMING
INTERRUPT
7h
−−
8h
CRC
9h
−−
Reserved
Ah
ID
Part number/ Rev ID
Reserved
ni
6h
ch
Te
REGISTER FUNCTION
Interrupt control
Reserved
Factory test — not a user register
Bh
−−
Ch
DATA0LOW
Low byte of ADC channel 0
Dh
DATA0HIGH
High byte of ADC channel 0
Eh
DATA1LOW
Low byte of ADC channel 1
Fh
DATA1HIGH
High byte of ADC channel 1
The mechanics of accessing a specific register depends on the specific SMB protocol used. Refer to the section
on SMBus protocols. In general, the COMMAND register is written first to specify the specific control/status
register for following read/write operations.
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
13
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
Command Register
The command register specifies the address of the target register for subsequent read and write operations.
The Send Byte protocol is used to configure the COMMAND register. The command register contains eight bits
as described in Table 3. The command register defaults to 00h at power on.
Table 3. Command Register
6
5
4
CMD
CLEAR
WORD
BLOCK
0
0
0
0
3
2
1
0
COMMAND
ADDRESS
0
0
al
id
Reset Value:
7
0
0
BIT
CMD
7
Select command register. Must write as 1.
DESCRIPTION
CLEAR
6
Interrupt clear. Clears any pending interrupt. This bit is a write-one-to-clear bit. It is self clearing.
WORD
5
SMB Write/Read Word Protocol. 1 indicates that this SMB transaction is using either the SMB Write Word or
Read Word protocol.
BLOCK
4
Block Write/Read Protocol. 1 indicates that this transaction is using either the Block Write or the Block Read
protocol. See Note below.
ADDRESS
3:0
am
lc s
on A
te G
nt
st
il
lv
FIELD
Register Address. This field selects the specific control or status register for following write and read
commands according to Table 2.
NOTE: An I2C block transaction will continue until the Master sends a stop condition. See Figure 16 and Figure 17. Unlike the I2C protocol, the
SMBus read/write protocol requires a Byte Count. All four ADC Channel Data Registers (Ch through Fh) can be read simultaneously in
a single SMBus transaction. This is the only 32-bit data block supported by the TSL2562 SMBus protocol. The BLOCK bit must be set
to 1, and a read condition should be initiated with a COMMAND CODE of 9Bh. By using a COMMAND CODE of 9Bh during an SMBus
Block Read Protocol, the TSL2562 device will automatically insert the appropriate Byte Count (Byte Count = 4) as illustrated in Figure 17.
A write condition should not be used in conjunction with the Bh register.
Control Register (0h)
The CONTROL register contains two bits and is primarily used to power the TSL256x device up and down as
shown in Table 4.
7
Reset Value:
5
4
3
2
Resv
Resv
Resv
Resv
Resv
0
0
0
0
0
BIT
1
0
CONTROL
POWER
0
0
0
DESCRIPTION
ch
FIELD
Resv
6
ni
0h
ca
Table 4. Control Register
Resv
7:2
Reserved. Write as 0.
Power up/power down. By writing a 03h to this register, the device is powered up. By writing a 00h to this
register, the device is powered down.
1:0
Te
POWER
Copyright E 2010, TAOS Inc.
NOTE: If a value of 03h is written, the value returned during a read cycle will be 03h. This feature can be
used to verify that the device is communicating properly.
The LUMENOLOGY r Company
r
r
14
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
Timing Register (1h)
The TIMING register controls both the integration time and the gain of the ADC channels. A common set of
control bits is provided that controls both ADC channels. The TIMING register defaults to 02h at power on.
Table 5. Timing Register
6
5
4
3
2
1
1h
Resv
Resv
Resv
GAIN
Manual
Resv
Reset Value:
0
0
0
0
0
0
INTEG
0
1
DESCRIPTION
TIMING
al
id
7
0
FIELD
BIT
Resv
7−5
GAIN
4
Switches gain between low gain and high gain modes. Writing a 0 selects low gain (1×); writing a 1 selects
high gain (16×).
Manual
3
Manual timing control. Writing a 1 begins an integration cycle. Writing a 0 stops an integration cycle.
NOTE: This field only has meaning when INTEG = 11. It is ignored at all other times.
Resv
2
INTEG
1:0
am
lc s
on A
te G
nt
st
il
lv
Reserved. Write as 0.
Reserved. Write as 0.
Integrate time. This field selects the integration time for each conversion.
Integration time is dependent on the INTEG FIELD VALUE and the internal clock frequency. Nominal integration
times and respective scaling between integration times scale proportionally as shown in Table 6. See Note 5
and Note 6 on page 5 for detailed information regarding how the scale values were obtained; see page 22 for
further information on how to calculate lux.
Table 6. Integration Time
INTEG FIELD VALUE
SCALE
NOMINAL INTEGRATION TIME
00
0.034
13.7 ms
01
0.252
101 ms
10
1
402 ms
11
−−
N/A
ni
ca
The manual timing control feature is used to manually start and stop the integration time period. If a particular
integration time period is required that is not listed in Table 6, then this feature can be used. For example, the
manual timing control can be used to synchronize the TSL256x device with an external light source (e.g. LED).
A start command to begin integration can be initiated by writing a 1 to this bit field. Correspondingly, the
integration can be stopped by simply writing a 0 to the same bit field.
Interrupt Threshold Register (2h − 5h)
Te
ch
The interrupt threshold registers store the values to be used as the high and low trigger points for the comparison
function for interrupt generation. If the value generated by channel 0 crosses below or is equal to the low
threshold specified, an interrupt is asserted on the interrupt pin. If the value generated by channel 0 crosses
above the high threshold specified, an interrupt is asserted on the interrupt pin. Registers THRESHLOWLOW
and THRESHLOWHIGH provide the low byte and high byte, respectively, of the lower interrupt threshold.
Registers THRESHHIGHLOW and THRESHHIGHHIGH provide the low and high bytes, respectively, of the
upper interrupt threshold. The high and low bytes from each set of registers are combined to form a 16-bit
threshold value. The interrupt threshold registers default to 00h on power up.
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
15
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
Table 7. Interrupt Threshold Register
REGISTER
ADDRESS
BITS
DESCRIPTION
THRESHLOWLOW
2h
7:0
ADC channel 0 lower byte of the low threshold
THRESHLOWHIGH
3h
7:0
ADC channel 0 upper byte of the low threshold
THRESHHIGHLOW
4h
7:0
ADC channel 0 lower byte of the high threshold
THRESHHIGHHIGH
5h
7:0
ADC channel 0 upper byte of the high threshold
lv
al
id
NOTE: Since two 8-bit values are combined for a single 16-bit value for each of the high and low interrupt thresholds, the Send Byte protocol should
not be used to write to these registers. Any values transferred by the Send Byte protocol with the MSB set would be interpreted as the
COMMAND field and stored as an address for subsequent read/write operations and not as the interrupt threshold information as desired.
The Write Word protocol should be used to write byte-paired registers. For example, the THRESHLOWLOW and THRESHLOWHIGH
registers (as well as the THRESHHIGHLOW and THRESHHIGHHIGH registers) can be written together to set the 16-bit ADC value in
a single transaction.
Interrupt Control Register (6h)
am
lc s
on A
te G
nt
st
il
The INTERRUPT register controls the extensive interrupt capabilities of the TSL256x. The TSL256x permits
both SMB-Alert style interrupts as well as traditional level-style interrupts. The interrupt persist bit field
(PERSIST) provides control over when interrupts occur. A value of 0 causes an interrupt to occur after every
integration cycle regardless of the threshold settings. A value of 1 results in an interrupt after one integration
time period outside the threshold window. A value of N (where N is 2 through15) results in an interrupt only if
the value remains outside the threshold window for N consecutive integration cycles. For example, if N is equal
to 10 and the integration time is 402 ms, then the total time is approximately 4 seconds.
When a level Interrupt is selected, an interrupt is generated whenever the last conversion results in a value
outside of the programmed threshold window. The interrupt is active-low and remains asserted until cleared by
writing the COMMAND register with the CLEAR bit set.
In SMBAlert mode, the interrupt is similar to the traditional level style and the interrupt line is asserted low. To
clear the interrupt, the host responds to the SMBAlert by performing a modified Receive Byte operation, in which
the Alert Response Address (ARA) is placed in the slave address field, and the TSL256x that generated the
interrupt responds by returning its own address in the seven most significant bits of the receive data byte. If more
than one device connected on the bus has pulled the SMBAlert line low, the highest priority (lowest address)
device will win communication rights via standard arbitration during the slave address transfer. If the device
loses this arbitration, the interrupt will not be cleared. The Alert Response Address is 0Ch.
ca
When INTR = 11, the interrupt is generated immediately following the SMBus write operation. Operation then
behaves in an SMBAlert mode, and the software set interrupt may be cleared by an SMBAlert cycle.
ni
NOTE: Interrupts are based on the value of Channel 0 only.
Table 8. Interrupt Control Register
6
6h
Resv
Resv
Reset Value:
0
0
Te
ch
7
FIELD
BITS
5
4
3
2
INTERRUPT
0
0
0
0
0
DESCRIPTION
Resv
7:6
Reserved. Write as 0.
INTR
5:4
INTR Control Select. This field determines mode of interrupt logic according to Table 9, below.
PERSIST
3:0
Interrupt persistence. Controls rate of interrupts to the host processor as shown in Table 10, below.
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
16
0
PERSIST
INTR
0
1
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
Table 9. Interrupt Control Select
INTR FIELD VALUE
READ VALUE
Interrupt output disabled
01
Level Interrupt
10
SMBAlert compliant
11
Test Mode: Sets interrupt and functions as mode 10
al
id
00
NOTE: Field value of 11 may be used to test interrupt connectivity in a system or to assist in debugging interrupt service routine software.
Table 10. Interrupt Persistence Select
Every ADC cycle generates interrupt
0001
Any value outside of threshold range
0010
2 integration time periods out of range
0011
3 integration time periods out of range
0100
4 integration time periods out of range
0101
5 integration time periods out of range
0110
6 integration time periods out of range
0111
7 integration time periods out of range
1000
8 integration time periods out of range
1001
9 integration time periods out of range
1010
10 integration time periods out of range
1011
11 integration time periods out of range
1100
12 integration time periods out of range
1101
13 integration time periods out of range
1110
14 integration time periods out of range
1111
15 integration time periods out of range
am
lc s
on A
te G
nt
st
il
ID Register (Ah)
INTERRUPT PERSIST FUNCTION
0000
lv
PERSIST FIELD VALUE
ni
ca
The ID register provides the value for both the part number and silicon revision number for that part number.
It is a read-only register, whose value never changes.
7
Reset Value:
5
4
3
2
−
−
1
0
ID
REVNO
PARTNO
ch
Ah
6
Table 11. ID Register
−
−
−
−
−
−
BITS
7:4
Part Number Identification: field value 0010 = TSL2562, field value 0011 = TSL2563
REVNO
3:0
Revision number identification
Te
FIELD
PARTNO
The LUMENOLOGY r Company
DESCRIPTION
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
17
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
ADC Channel Data Registers (Ch − Fh)
The ADC channel data are expressed as 16-bit values spread across two registers. The ADC channel 0 data
registers, DATA0LOW and DATA0HIGH provide the lower and upper bytes, respectively, of the ADC value of
channel 0. Registers DATA1LOW and DATA1HIGH provide the lower and upper bytes, respectively, of the ADC
value of channel 1. All channel data registers are read-only and default to 00h on power up.
ADDRESS
BITS
Ch
7:0
ADC channel 0 lower byte
DESCRIPTION
DATA0HIGH
Dh
7:0
ADC channel 0 upper byte
DATA1LOW
Eh
7:0
ADC channel 1 lower byte
DATA1HIGH
Fh
7:0
ADC channel 1 upper byte
lv
REGISTER
DATA0LOW
al
id
Table 12. ADC Channel Data Registers
am
lc s
on A
te G
nt
st
il
The upper byte data registers can only be read following a read to the corresponding lower byte register. When
the lower byte register is read, the upper eight bits are strobed into a shadow register, which is read by a
subsequent read to the upper byte. The upper register will read the correct value even if additional ADC
integration cycles end between the reading of the lower and upper registers.
Te
ch
ni
ca
NOTE: The Read Word protocol can be used to read byte-paired registers. For example, the DATA0LOW and DATA0HIGH registers (as well as
the DATA1LOW and DATA1HIGH registers) may be read together to obtain the 16-bit ADC value in a single transaction
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
18
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
APPLICATION INFORMATION: SOFTWARE
Basic Operation
al
id
After applying VDD, the device will initially be in the power-down state. To operate the device, issue a command
to access the CONTROL register followed by the data value 03h to power up the device. At this point, both ADC
channels will begin a conversion at the default integration time of 400 ms. After 400 ms, the conversion results
will be available in the DATA0 and DATA1 registers. Use the following pseudo code to read the data registers:
// Read ADC Channels Using Read Word Protocol − RECOMMENDED
Address = 0x39
//Slave addr – also 0x29 or 0x49
am
lc s
on A
te G
nt
st
il
//Reads two bytes from sequential registers 0x0C and 0x0D
//Results are returned in DataLow and DataHigh variables
ReadWord (Address, Command, DataLow, DataHigh)
Channel0 = 256 * DataHigh + DataLow
lv
//Address the Ch0 lower data register and configure for Read Word
Command = 0xAC
//Set Command bit and Word bit
//Address the Ch1 lower data register and configure for Read Word
Command = 0xAE
//Set bit fields 7 and 5
//Reads two bytes from sequential registers 0x0E and 0x0F
//Results are returned in DataLow and DataHigh variables
ReadWord (Address, Command, DataLow, DataHigh)
Channel1 = 256 * DataHigh + DataLow
//Shift DataHigh to upper byte
// Read ADC Channels Using Read Byte Protocol
Address = 0x39
Command = 0x8C
ReadByte (Address, Command, DataLow)
Command = 0x8D
ReadByte (Address, Command, DataHigh)
Channel0 = 256 * DataHigh + DataLow
//Address the Ch1 lower data register
//Result returned in DataLow
//Address the Ch1 upper data register
//Result returned in DataHigh
//Shift DataHigh to upper byte
Te
ch
ni
ca
Command = 0x8E
ReadByte (Address, Command, DataLow)
Command = 0x8F
ReadByte (Address, Command, DataHigh)
Channel1 = 256 * DataHigh + DataLow
//Slave addr − also 0x29 or 0x49
//Address the Ch0 lower data register
//Result returned in DataLow
//Address the Ch0 upper data register
//Result returned in DataHigh
//Shift DataHigh to upper byte
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
19
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
APPLICATION INFORMATION: SOFTWARE
Configuring the Timing Register
am
lc s
on A
te G
nt
st
il
//Low Gain (1x), integration time of 101ms
Data = 0x01
WriteByte(Address, Command, Data)
lv
// Set up Timing Register
//Low Gain (1x), integration time of 402ms (default value)
Address = 0x39
Command = 0x81
Data = 0x02
WriteByte(Address, Command, Data)
al
id
The command, timing, and control registers are initialized to default values on power up. Setting these registers
to the desired values would be part of a normal initialization or setup procedure. In addition, to maximize the
performance of the device under various conditions, the integration time and gain may be changed often during
operation. The following pseudo code illustrates a procedure for setting up the timing register for various
options:
//Low Gain (1x), integration time of 13.7ms
Data = 0x00
WriteByte(Address, Command, Data)
//High Gain (16x), integration time of 101ms
Data = 0x11
WriteByte(Address, Command, Data)
//Read data registers (see Basic Operation example)
//Perform Manual Integration
//Set up for manual integration with Gain of 1x
Data = 0x03
//Set manual integration mode – device stops converting
WriteByte(Address, Command, Data)
//Begin integration period
Data = 0x0B
WriteByte(Address, Command, Data)
ca
//Integrate for 50ms
Sleep (50)
//Wait for 50ms
ni
//Stop integrating
Data = 0x03
WriteByte(Address, Command, Data)
Te
ch
//Read data registers (see Basic Operation example)
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
20
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
APPLICATION INFORMATION: SOFTWARE
Interrupts
al
id
The interrupt feature of the TSL256x device simplifies and improves system efficiency by eliminating the need
to poll the sensor for a light intensity value. Interrupt styles are determined by the INTR field in the Interrupt
Register. The interrupt feature may be disabled by writing a field value of 00h to the Interrupt Control Register
so that polling can be performed.
am
lc s
on A
te G
nt
st
il
lv
The versatility of the interrupt feature provides many options for interrupt configuration and usage. The primary
purpose of the interrupt function is to provide a meaningful change in light intensity. However, it also be used
as an end-of-conversion signal. 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 device implements two
16-bit-wide interrupt threshold registers that allow the user to define a threshold above and below the current
light level. An interrupt will then be generated when the value of a conversion exceeds either of these limits. For
simplicity of programming, the threshold comparison is accomplished only with Channel 0. This simplifies
calculation of thresholds that are based, for example, on a percent of the current light level. It is adequate to
use only one channel when calculating light intensity differences since, for a given light source, the channel 0
and channel 1 values are linearly proportional to each other and thus both values scale linearly with light
intensity.
To further control when an interrupt occurs, the TSL256x device provides an interrupt persistence feature. This
feature allows the user to specify a number of conversion cycles for which a light intensity exceeding either
interrupt threshold must persist before actually generating an interrupt. This can be used to prevent transient
changes in light intensity from generating an unwanted interrupt. With a value of 1, an interrupt occurs
immediately whenever either threshold is exceeded. With values of N, where N can range from 2 to 15, N
consecutive conversions must result in values outside the interrupt window for an interrupt to be generated. For
example, if N is equal to 10 and the integration time is 402 ms, then an interrupt will not be generated unless
the light level persists for more than 4 seconds outside the threshold.
Two different interrupt styles are available: Level and SMBus Alert. The difference between these two interrupt
styles is how they are cleared. Both result in the interrupt line going active low and remaining low until the
interrupt is cleared. A level style interrupt is cleared by setting the CLEAR bit (bit 6) in the COMMAND register.
The SMBus Alert style interrupt is cleared by an Alert Response as described in the Interrupt Control Register
section and SMBus specification.
ca
To configure the interrupt as an end-of-conversion signal, the interrupt PERSIST field is set to 0. Either Level
or SMBus Alert style can be used. An interrupt will be generated upon completion of each conversion. The
interrupt threshold registers are ignored. The following example illustrates the configuration of a level interrupt:
Te
ch
ni
// Set up end−of−conversion interrupt, Level style
Address = 0x39
//Slave addr also 0x29 or 0x49
Command = 0x86
//Address Interrupt Register
Data = 0x10
//Level style, every ADC cycle
WriteByte(Address, Command, Data)
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
21
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
APPLICATION INFORMATION: SOFTWARE
The following example pseudo code illustrates the configuration of an SMB Alert style interrupt when the light
intensity changes 20% from the current value, and persists for 3 conversion cycles:
al
id
// Read current light level
Address = 0x39
//Slave addr also 0x29 or 0x49
Command = 0xAC
//Set Command bit and Word bit
ReadWord (Address, Command, DataLow, DataHigh)
Channel0 = (256 * DataHigh) + DataLow
//Calculate upper and lower thresholds
T_Upper = Channel0 + (0.2 * Channel0)
T_Lower = Channel0 – (0.2 * Channel0)
lv
//Write the lower threshold register
Command = 0xA2
//Addr lower threshold reg, set Word Bit
WriteWord (Address, Command, T_Lower.LoByte, T_Lower.HiByte)
am
lc s
on A
te G
nt
st
il
//Write the upper threshold register
Command = 0xA4
//Addr upper threshold reg, set Word bit
WriteWord (Address, Command, T_Upper.LoByte, T_Upper.HiByte)
//Enable interrupt
Command = 0x86
Data = 0x23
WriteByte(Address, Command, Data)
//Address interrupt register
//SMBAlert style, PERSIST = 3
In order to generate an interrupt on demand during system test or debug, a test mode (INTR = 11) can be used.
The following example illustrates how to generate an interrupt on demand:
// Generate an interrupt
Address = 0x39
Command = 0x86
Data = 0x30
WriteByte(Address, Command, Data)
//Slave addr also 0x29 or 0x49
//Address Interrupt register
//Test interrupt
Te
ch
ni
ca
//Interrupt line should now be low
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
22
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
APPLICATION INFORMATION: SOFTWARE
Calculating Lux
al
id
The TSL256x is intended for use in ambient light detection applications such as display backlight control, where
adjustments are made to display brightness or contrast based on the brightness of the ambient light, as
perceived by the human eye. Conventional silicon detectors respond strongly to infrared light, which the human
eye does not see. This can lead to significant error when the infrared content of the ambient light is high, such
as with incandescent lighting, due to the difference between the silicon detector response and the brightness
perceived by the human eye.
lv
This problem is overcome in the TSL256x through the use of two photodiodes. One of the photodiodes
(channel 0) is sensitive to both visible and infrared light, while the second photodiode (channel 1) is sensitive
primarily to infrared light. An integrating ADC converts the photodiode currents to digital outputs. Channel 1
digital output is used to compensate for the effect of the infrared component of light on the channel 0 digital
output. The ADC digital outputs from the two channels are used in a formula to obtain a value that approximates
the human eye response in the commonly used Illuminance unit of Lux:
Lux = 0.0315 CH0 − 0.0593 CH0 ((CH1/CH0)1.4)
Lux = 0.0229 CH0 − 0.0291 CH1
Lux = 0.0157 CH0 − 0.0180 CH1
Lux = 0.00338 CH0 − 0.00260 CH1
Lux = 0
T, FN, and CL Package
For 0 < CH1/CH0 0.50
For 0.50 < CH1/CH0 0.61
For 0.61 < CH1/CH0 0.80
For 0.80 < CH1/CH0 1.30
For CH1/CH0 > 1.30
Lux = 0.0304 CH0 − 0.062 CH0 ((CH1/CH0)1.4)
Lux = 0.0224 CH0 − 0.031 CH1
Lux = 0.0128 CH0 − 0.0153 CH1
Lux = 0.00146 CH0 − 0.00112 CH1
Lux = 0
am
lc s
on A
te G
nt
st
il
CS Package
For 0 < CH1/CH0 0.52
For 0.52 < CH1/CH0 0.65
For 0.65 < CH1/CH0 0.80
For 0.80 < CH1/CH0 1.30
For CH1/CH0 > 1.30
The formulas shown above were obtained by optical testing with fluorescent and incandescent light sources,
and apply only to open-air applications. Optical apertures (e.g. light pipes) will affect the incident light on the
device.
ca
Simplified Lux Calculation
ch
ni
Below is the argument and return value including source code (shown on following page) for calculating lux.
The source code is intended for embedded and/or microcontroller applications. Two individual code sets are
provided, one for the T, FN, and CL packages, and one for the CS package. All floating point arithmetic
operations have been eliminated since embedded controllers and microcontrollers generally do not support
these types of operations. Since floating point has been removed, scaling must be performed prior to calculating
illuminance if the integration time is not 402 ms and/or if the gain is not 16 as denoted in the source code on
the following pages. This sequence scales first to mitigate rounding errors induced by decimal math.
Te
extern unsigned int CalculateLux(unsigned int iGain, unsigned int tInt, unsigned int
ch0, unsigned int ch1, int iType)
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
23
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
//****************************************************************************
//
// Copyright E 2004−2005 TAOS, Inc.
//
// THIS CODE AND INFORMATION IS PROVIDED ”AS IS” WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
//
Module Name:
//
lux.cpp
//
//****************************************************************************
// scale by 2^14
// scale ratio by 2^9
lv
#define LUX_SCALE
14
#define RATIO_SCALE 9
am
lc s
on A
te G
nt
st
il
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// Integration time scaling factors
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
#define CH_SCALE
#define CHSCALE_TINT0
#define CHSCALE_TINT1
al
id
TAOS066N − AUGUST 2010
10
// scale channel values by 2^10
0x7517 // 322/11 * 2^CH_SCALE
0x0fe7 // 322/81 * 2^CH_SCALE
Te
ch
ni
ca
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// T, FN, and CL Package coefficients
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// For Ch1/Ch0=0.00 to 0.50
//
Lux/Ch0=0.0304−0.062*((Ch1/Ch0)^1.4)
//
piecewise approximation
//
For Ch1/Ch0=0.00 to 0.125:
//
Lux/Ch0=0.0304−0.0272*(Ch1/Ch0)
//
//
For Ch1/Ch0=0.125 to 0.250:
//
Lux/Ch0=0.0325−0.0440*(Ch1/Ch0)
//
//
For Ch1/Ch0=0.250 to 0.375:
//
Lux/Ch0=0.0351−0.0544*(Ch1/Ch0)
//
//
For Ch1/Ch0=0.375 to 0.50:
//
Lux/Ch0=0.0381−0.0624*(Ch1/Ch0)
//
// For Ch1/Ch0=0.50 to 0.61:
//
Lux/Ch0=0.0224−0.031*(Ch1/Ch0)
//
// For Ch1/Ch0=0.61 to 0.80:
//
Lux/Ch0=0.0128−0.0153*(Ch1/Ch0)
//
// For Ch1/Ch0=0.80 to 1.30:
//
Lux/Ch0=0.00146−0.00112*(Ch1/Ch0)
//
// For Ch1/Ch0>1.3:
//
Lux/Ch0=0
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
#define K1T 0x0040
// 0.125 * 2^RATIO_SCALE
#define B1T 0x01f2
// 0.0304 * 2^LUX_SCALE
#define M1T 0x01be
// 0.0272 * 2^LUX_SCALE
#define K2T
0x0080
Copyright E 2010, TAOS Inc.
// 0.250 * 2^RATIO_SCALE
The LUMENOLOGY r Company
r
r
24
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
#define B2T
#define M2T
0x0214
0x02d1
// 0.0325 * 2^LUX_SCALE
// 0.0440 * 2^LUX_SCALE
#define K3T
#define B3T
#define M3T
0x00c0
0x023f
0x037b
// 0.375 * 2^RATIO_SCALE
// 0.0351 * 2^LUX_SCALE
// 0.0544 * 2^LUX_SCALE
#define
#define
#define
#define
#define
#define
K4T
B4T
M4T
K5T
B5T
M5T
0x0100
0x0270
0x03fe
0x0138
0x016f
0x01fc
//
//
//
//
//
//
#define K6T
#define B6T
#define M6T
0x019a
0x00d2
0x00fb
// 0.80 * 2^RATIO_SCALE
// 0.0128 * 2^LUX_SCALE
// 0.0153 * 2^LUX_SCALE
#define K7T
#define B7T
#define M7T
0x029a
0x0018
0x0012
// 1.3 * 2^RATIO_SCALE
// 0.00146 * 2^LUX_SCALE
// 0.00112 * 2^LUX_SCALE
#define K8T
#define B8T
#define M8T
0x029a
0x0000
0x0000
// 1.3 * 2^RATIO_SCALE
// 0.000 * 2^LUX_SCALE
// 0.000 * 2^LUX_SCALE
lv
al
id
2^RATIO_SCALE
* 2^LUX_SCALE
* 2^LUX_SCALE
2^RATIO_SCALE
* 2^LUX_SCALE
* 2^LUX_SCALE
am
lc s
on A
te G
nt
st
il
0.50 *
0.0381
0.0624
0.61 *
0.0224
0.0310
ch
ni
ca
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// CS package coefficients
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// For 0 <= Ch1/Ch0 <= 0.52
//
Lux/Ch0 = 0.0315−0.0593*((Ch1/Ch0)^1.4)
//
piecewise approximation
//
For 0 <= Ch1/Ch0 <= 0.13
//
Lux/Ch0 = 0.0315−0.0262*(Ch1/Ch0)
//
For 0.13 <= Ch1/Ch0 <= 0.26
//
Lux/Ch0 = 0.0337−0.0430*(Ch1/Ch0)
//
For 0.26 <= Ch1/Ch0 <= 0.39
//
Lux/Ch0 = 0.0363−0.0529*(Ch1/Ch0)
//
For 0.39 <= Ch1/Ch0 <= 0.52
//
Lux/Ch0 = 0.0392−0.0605*(Ch1/Ch0)
// For 0.52 < Ch1/Ch0 <= 0.65
//
Lux/Ch0 = 0.0229−0.0291*(Ch1/Ch0)
// For 0.65 < Ch1/Ch0 <= 0.80
//
Lux/Ch0 = 0.00157−0.00180*(Ch1/Ch0)
// For 0.80 < Ch1/Ch0 <= 1.30
//
Lux/Ch0 = 0.00338−0.00260*(Ch1/Ch0)
// For Ch1/Ch0 > 1.30
//
Lux = 0
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
#define K1C 0x0043 // 0.130 * 2^RATIO_SCALE
#define B1C 0x0204 // 0.0315 * 2^LUX_SCALE
#define M1C 0x01ad // 0.0262 * 2^LUX_SCALE
0x0085 // 0.260 * 2^RATIO_SCALE
0x0228 // 0.0337 * 2^LUX_SCALE
0x02c1 // 0.0430 * 2^LUX_SCALE
#define K3C
#define B3C
#define M3C
0x00c8 // 0.390 * 2^RATIO_SCALE
0x0253 // 0.0363 * 2^LUX_SCALE
0x0363 // 0.0529 * 2^LUX_SCALE
Te
#define K2C
#define B2C
#define M2C
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
25
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
#define K5C
#define B5C
#define M5C
0x014d // 0.65 * 2^RATIO_SCALE
0x0177 // 0.0229 * 2^LUX_SCALE
0x01dd // 0.0291 * 2^LUX_SCALE
#define K6C
#define B6C
#define M6C
0x019a // 0.80 * 2^RATIO_SCALE
0x0101 // 0.0157 * 2^LUX_SCALE
0x0127 // 0.0180 * 2^LUX_SCALE
#define K7C
#define B7C
#define M7C
0x029a // 1.3 * 2^RATIO_SCALE
0x0037 // 0.00338 * 2^LUX_SCALE
0x002b // 0.00260 * 2^LUX_SCALE
#define K8C
#define B8C
#define M8C
0x029a // 1.3 * 2^RATIO_SCALE
0x0000 // 0.000 * 2^LUX_SCALE
0x0000 // 0.000 * 2^LUX_SCALE
lv
0x010a // 0.520 * 2^RATIO_SCALE
0x0282 // 0.0392 * 2^LUX_SCALE
0x03df // 0.0605 * 2^LUX_SCALE
am
lc s
on A
te G
nt
st
il
#define K4C
#define B4C
#define M4C
al
id
TAOS066N − AUGUST 2010
ca
// lux equation approximation without floating point calculations
//////////////////////////////////////////////////////////////////////////////
//
Routine:
unsigned int CalculateLux(unsigned int ch0, unsigned int ch0, int iType)
//
//
Description: Calculate the approximate illuminance (lux) given the raw
//
channel values of the TSL2562. The equation if implemented
//
as a piece−wise linear approximation.
//
//
Arguments:
unsigned int iGain − gain, where 0:1X, 1:16X
//
unsigned int tInt − integration time, where 0:13.7mS, 1:100mS, 2:402mS,
//
3:Manual
//
unsigned int ch0 − raw channel value from channel 0 of TSL2562
//
unsigned int ch1 − raw channel value from channel 1 of TSL2562
//
unsigned int iType − package type (T or CS)
//
//
Return:
unsigned int − the approximate illuminance (lux)
//
//////////////////////////////////////////////////////////////////////////////
unsigned int CalculateLux(unsigned int iGain, unsigned int tInt, unsigned int ch0,
unsigned int ch1, int iType)
{
Te
ch
ni
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// first, scale the channel values depending on the gain and integration time
// 16X, 402mS is nominal.
// scale if integration time is NOT 402 msec
unsigned long chScale;
unsigned long channel1;
unsigned long channel0;
switch (tInt)
{
case 0:
// 13.7 msec
chScale = CHSCALE_TINT0;
break;
case 1:
// 101 msec
chScale = CHSCALE_TINT1;
break;
default:
// assume no scaling
chScale = (1 << CH_SCALE);
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
26
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
break;
}
// scale if gain is NOT 16X
if (!iGain) chScale = chScale << 4;
// scale 1X to 16X
// find the ratio of the channel values (Channel1/Channel0)
// protect against divide by zero
unsigned long ratio1 = 0;
if (channel0 != 0) ratio1 = (channel1 << (RATIO_SCALE+1)) / channel0;
lv
// round the ratio value
unsigned long ratio = (ratio1 + 1) >> 1;
al
id
// scale the channel values
channel0 = (ch0 * chScale) >> CH_SCALE;
channel1 = (ch1 * chScale) >> CH_SCALE;
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
am
lc s
on A
te G
nt
st
il
// is ratio <= eachBreak ?
unsigned int b, m;
switch (iType)
{
ca
case 0: // T, FN, CL package
if ((ratio >= 0) && (ratio <= K1T))
{b=B1T; m=M1T;}
else if (ratio <= K2T)
{b=B2T; m=M2T;}
else if (ratio <= K3T)
{b=B3T; m=M3T;}
else if (ratio <= K4T)
{b=B4T; m=M4T;}
else if (ratio <= K5T)
{b=B5T; m=M5T;}
else if (ratio <= K6T)
{b=B6T; m=M6T;}
else if (ratio <= K7T)
{b=B7T; m=M7T;}
else if (ratio > K8T)
{b=B8T; m=M8T;}
break;
Te
ch
ni
case 1:// CS package
if ((ratio >= 0) && (ratio <= K1C))
{b=B1C; m=M1C;}
else if (ratio <= K2C)
{b=B2C; m=M2C;}
else if (ratio <= K3C)
{b=B3C; m=M3C;}
else if (ratio <= K4C)
{b=B4C; m=M4C;}
else if (ratio <= K5C)
{b=B5C; m=M5C;}
else if (ratio <= K6C)
{b=B6C; m=M6C;}
else if (ratio <= K7C)
{b=B7C; m=M7C;}
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
27
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
else if (ratio > K8C)
{b=B8C; m=M8C;}
break;
}
unsigned long temp;
temp = ((channel0 * b) − (channel1 * m));
al
id
// do not allow negative lux value
if (temp < 0) temp = 0;
// round lsb (2^(LUX_SCALE−1))
temp += (1 << (LUX_SCALE−1));
lv
// strip off fractional portion
unsigned long lux = temp >> LUX_SCALE;
return(lux);
Te
ch
ni
ca
am
lc s
on A
te G
nt
st
il
}
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
28
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
APPLICATION INFORMATION: HARDWARE
Power Supply Decoupling and Application Hardware Circuit
VBUS
RP
VDD
RPI
TSL2562/
TSL2563
0.1 F
lv
RP
al
id
The power supply lines must be decoupled with a 0.1 μF capacitor placed as close to the device package as
possible (Figure 18). The bypass capacitor should have low effective series resistance (ESR) and low effective
series inductance (ESI), such as the common ceramic types, which provide a low impedance path to ground
at high frequencies to handle transient currents caused by internal logic switching.
am
lc s
on A
te G
nt
st
il
INT
SCL
SDA
Figure 18. Bus Pull-Up Resistors
Pull-up resistors (Rp) maintain the SDAH and SCLH lines at a high level when the bus is free and ensure the
signals are pulled up from a low to a high level within the required rise time. For a complete description of the
SMBus maximum and minimum Rp values, please review the SMBus Specification at
http://www.smbus.org/specs. For a complete description of I2C maximum and minimum Rp values, please
review the I2C Specification at http://www.semiconductors.philips.com.
Te
ch
ni
ca
A pull-up resistor (RPI) is also required for the interrupt (INT), which functions as a wired-AND signal in a similar
fashion to the SCL and SDA lines. A typical impedance value between 10 kΩ and 100 kΩ can be used. Please
note that while Figure 18 shows INT being pulled up to VDD, the interrupt can optionally be pulled up to VBUS.
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
29
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
APPLICATION INFORMATION: HARDWARE
PCB Pad Layout
3.80
0.90
0.90
0.70
am
lc s
on A
te G
nt
st
il
2.60
lv
0.25
0.70
al
id
Suggested PCB pad layout guidelines for the TMB-6 (T) surface mount package, chipscale (CS) package, Dual
Flat No-Lead (FN) surface mount package, and ChipLED−6 (CL) surface mount package are shown in
Figure 19, Figure 20, Figure 21, and Figure 22.
0.70
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
Figure 19. Suggested T Package PCB Layout
0.50
0.50
6
0.25
ca
0.50
ni
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
Te
ch
Figure 20. Suggested CS Package PCB Layout
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
30
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
2.90
1.30
1.30
0.40
0.65
0.65
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
am
lc s
on A
te G
nt
st
il
Figure 21. Suggested FN Package PCB Layout
lv
0.40
al
id
1.70
1.30
0.43
0.40
0.65
0.40
0.70
0.70
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
Te
ch
ni
ca
Figure 22. Suggested CL Package PCB Layout
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
31
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MECHANICAL DATA
PACKAGE CS
Six-Lead Chipscale Device
TOP VIEW
PIN OUT
1398
al
id
BOTTOM VIEW
1
lv
6
5
2
171
4
3
am
lc s
on A
te G
nt
st
il
465
203
1250
END VIEW
400 50
700 55
6 100
BOTTOM VIEW
TYP 30
SIDE VIEW
375 30
6
ca
500
250 30
ch
ni
500
1750
375 30
Lead Free
All linear dimensions are in micrometers. Dimension tolerance is ± 25 μm unless otherwise noted.
Solder bumps are formed of Sn (96.5%), Ag (3%), and Cu (0.5%).
The top of the photodiode active area is 410 μm below the top surface of the package.
The layer above the photodiode is glass and epoxy with an index of refraction of 1.53.
This drawing is subject to change without notice.
Te
NOTES: A.
B.
C.
D.
E.
Pb
500
Figure 23. Package CS — Six-Lead Chipscale Packaging Configuration
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
32
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MECHANICAL DATA
PACKAGE TMB-6
Six-Lead Surface Mount Device
TOP VIEW
TOP VIEW
0.31
al
id
1.90
PIN 1
R 0.20
6 Pls
2.60
lv
PIN 4
3.80
am
lc s
on A
te G
nt
st
il
Photo-Active Area
END VIEW
0.88
1.35
0.50
BOTTOM VIEW
0.90
TYP
0.90 TYP
0.60
TYP
0.30
TYP
Pb
Lead Free
ca
0.30
TYP
ch
ni
All linear dimensions are in millimeters. Dimension tolerance is ± 0.20 mm unless otherwise noted.
The photo-active area is 1398 μm by 203 μm.
Package top surface is molded with an electrically nonconductive clear plastic compound having an index of refraction of 1.55.
Contact finish is 0.5 μm minimum of soft gold plated over a 18 μm thick copper foil pattern with a 5 μm to 9 μm nickel barrier.
The underside of the package includes copper traces used to connect the pads during package substrate fabrication. Accordingly,
exposed traces and vias should not be placed under the footprint of the TMB package in a PCB layout.
F. This package contains no lead (Pb).
G. This drawing is subject to change without notice.
NOTES: A.
B.
C.
D.
E.
Te
Figure 24. Package T — Six-Lead TMB Plastic Surface Mount Packaging Configuration
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
33
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MECHANICAL DATA
PACKAGE FN
Dual Flat No-Lead
TOP VIEW
PIN OUT
TOP VIEW
PIN 1
2000
75
ADR 2
5 INT
GND 3
4 CLK
lv
al
id
6 DATA
am
lc s
on A
te G
nt
st
il
2000 75
VDD 1
Photo-Active Area
END VIEW
SIDE VIEW
650 50
Seating Plane
203 8
650
300
50
ca
BOTTOM VIEW
ni
PIN 1
Pb
ch
750 150
All linear dimensions are in micrometers. Dimension tolerance is ± 20 μm unless otherwise noted.
The photo-active area is 1398 μm by 203 μm.
Package top surface is molded with an electrically nonconductive clear plastic compound having an index of refraction of 1.55.
Contact finish is copper alloy A194 with pre-plated NiPdAu lead finish.
This package contains no lead (Pb).
This drawing is subject to change without notice.
Te
NOTES: A.
B.
C.
D.
E.
F.
Lead Free
Figure 25. Package FN — Dual Flat No-Lead Packaging Configuration
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
34
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MECHANICAL DATA
PACKAGE CL-6
Six-Lead Surface Mount Device
PIN OUT
TOP VIEW
TOP VIEW
al
id
2.60
4
5
2.20
3
lv
6
Photo-Active Area
SIDE VIEW
2
am
lc s
on A
te G
nt
st
il
Pin 1
Pin 1 Marker
2.2
0.65
0.18
BOTTOM VIEW
Pin 1 Marker
0.65
0.40
ca
Pin 1
0.70
6
0.35
ni
Pb
Lead Free
ch
5
All linear dimensions are in millimeters. Dimension tolerance is ± 0.10 mm unless otherwise noted.
The photo-active area is 1398 μm by 203 μm.
Package top surface is molded with an electrically nonconductive clear plastic compound having an index of refraction of 1.55.
Contact finish is soft gold plate.
This package contains no lead (Pb).
This drawing is subject to change without notice.
Te
NOTES: A.
B.
C.
D.
E.
F.
Figure 26. Package CL — Six-Lead ChipLED Plastic Surface Mount Packaging Configuration
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
35
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MECHANICAL DATA
TOP VIEW
2.00 0.05
1.75
1.50
4.00
al
id
4.00
B
+ 0.30
8.00
− 0.10
lv
3.50 0.05
0.60
0.05
DETAIL A
5 Max
B
A
am
lc s
on A
te G
nt
st
il
A
DETAIL B
5 Max
0.250
0.02
1.35 0.05
1.85 0.05
0.97 0.05
Bo
Ko
All linear dimensions are in millimeters. Dimension tolerance is ± 0.10 mm unless otherwise noted.
The dimensions on this drawing are for illustrative purposes only. Dimensions of an actual carrier may vary slightly.
Symbols on drawing Ao, Bo, and Ko are defined in ANSI EIA Standard 481−B 2001.
Each reel is 178 millimeters in diameter and contains 3500 parts.
TAOS packaging tape and reel conform to the requirements of EIA Standard 481−B.
In accordance with EIA standard, device pin 1 is located next to the sprocket holes in the tape.
This drawing is subject to change without notice.
Te
ch
NOTES: A.
B.
C.
D.
E.
F.
G.
ni
ca
Ao
Copyright E 2010, TAOS Inc.
Figure 27. TSL2562/TSL2563 Chipscale Carrier Tape
The LUMENOLOGY r Company
r
r
36
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MECHANICAL DATA
0.30 0.050
2.10
SIDE VIEW
B
1.50
4 0.100
2 0.100
8 Typ
TOP VIEW
12 0.100
1.50
R 0.20 TYP
B
A
lv
5.50
0.100
END VIEW
al
id
1.75 0.100
A
2.90 0.100 Ao
3.09 MAX
ca
R 0.20 TYP
am
lc s
on A
te G
nt
st
il
DETAIL B
DETAIL A
4.29 MAX
ni
4.10 0.100 Bo
1.80 Ko
ch
Te
NOTES: A.
B.
C.
D.
E.
F.
G.
R 0.20 TYP
All linear dimensions are in millimeters.
The dimensions on this drawing are for illustrative purposes only. Dimensions of an actual carrier may vary slightly.
Symbols on drawing Ao, Bo, and Ko are defined in ANSI EIA Standard 481−B 2001.
Each reel is 178 millimeters in diameter and contains 1000 parts.
TAOS packaging tape and reel conform to the requirements of EIA Standard 481−B.
In accordance with EIA standard, device pin 1 is located next to the sprocket holes in the tape.
This drawing is subject to change without notice.
The LUMENOLOGY r Company
Figure 28. TSL2562/TSL2563 TMB Carrier Tape
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
37
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MECHANICAL DATA
TOP VIEW
2.00 0.05
1.75
1.50
4.00
al
id
4.00
B
+ 0.30
8.00
− 0.10
1.00
0.25
DETAIL A
B
A
am
lc s
on A
te G
nt
st
il
A
lv
3.50 0.05
DETAIL B
5 Max
5 Max
0.254
0.02
2.18 0.05
Ao
2.18 0.05
0.83 0.05
Bo
All linear dimensions are in millimeters. Dimension tolerance is ± 0.10 mm unless otherwise noted.
The dimensions on this drawing are for illustrative purposes only. Dimensions of an actual carrier may vary slightly.
Symbols on drawing Ao, Bo, and Ko are defined in ANSI EIA Standard 481−B 2001.
Each reel is 178 millimeters in diameter and contains 3500 parts.
TAOS packaging tape and reel conform to the requirements of EIA Standard 481−B.
In accordance with EIA standard, device pin 1 is located next to the sprocket holes in the tape.
This drawing is subject to change without notice.
Te
ch
NOTES: H.
I.
J.
K.
L.
M.
N.
ni
ca
Ko
Copyright E 2010, TAOS Inc.
Figure 29. TSL2562/TSL2563 FN Carrier Tape
The LUMENOLOGY r Company
r
r
38
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MECHANICAL DATA
TOP VIEW
2.00 0.05
1.50
+ 0.10
4.00
1.75
al
id
4.00
B
8.0 0.2
lv
3.50 0.05
1.00
B
A
am
lc s
on A
te G
nt
st
il
A
DETAIL B
DETAIL A
5 Max
5 Max
0.20
0.05
2.4
Ao
NOTES: A.
B.
C.
D.
E.
F.
G.
2.9
0.7
Bo
Ko
All linear dimensions are in millimeters. Dimension tolerance is ± 0.10 mm unless otherwise noted.
The dimensions on this drawing are for illustrative purposes only. Dimensions of an actual carrier may vary slightly.
Symbols on drawing Ao, Bo, and Ko are defined in ANSI EIA Standard 481−B 2001.
Each reel is 178 millimeters in diameter and contains 2500 parts.
TAOS packaging tape and reel conform to the requirements of EIA Standard 481−B.
In accordance with EIA standard, device pin 1 is located next to the sprocket holes in the tape.
This drawing is subject to change without notice.
Te
ch
ni
ca
Figure 30. TSL2562/TSL2563 CL Carrier Tape
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
39
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MANUFACTURING INFORMATION
The CS, T, FN, and CL packages have been tested and have demonstrated an ability to be reflow soldered to
a PCB substrate. The process, equipment, and materials used in these test are detailed below.
Table 13. TSL2562/63 Solder Reflow Profile
PARAMETER
REFERENCE
TSL2562/63
tsoak
2 to 3 minutes
Time above 217°C
t1
Max 60 sec
Time above 230°C
t2
Max 50 sec
Time above Tpeak −10°C
t3
Max 10 sec
2.5°C/sec
am
lc s
on A
te G
nt
st
il
Soak time
lv
Average temperature gradient in preheating
Peak temperature in reflow
Tpeak
260° C (−0°C/+5°C)
Temperature gradient in cooling
Tpeak
al
id
The solder reflow profile describes the expected maximum heat exposure of components during the solder
reflow process of product on a PCB. Temperature is measured on top of component. The components should
be limited to a maximum of three passes through this solder reflow profile.
Max −5°C/sec
Not to scale — for reference only
T3
T2
ca
Temperature (C)
T1
Time (sec)
ni
t3
t2
tsoak
ch
t1
Te
Figure 31. TSL2562/TSL2563 Solder Reflow Profile Graph
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
40
www.taosinc.com
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
MANUFACTURING INFORMATION
Moisture Sensitivity
al
id
Optical characteristics of the device can be adversely affected during the soldering process by the release and
vaporization of moisture that has been previously absorbed into the package molding compound. To ensure the
package molding compound contains the smallest amount of absorbed moisture possible, each device is
dry-baked prior to being packed for shipping. Devices are packed in a sealed aluminized envelope with silica
gel to protect them from ambient moisture during shipping, handling, and storage before use.
Temperature Range
Relative Humidity
Floor Life
5°C to 50°C
60% maximum
1 year out of bag at ambient < 30°C / 60% RH
lv
The CS package has been assigned a moisture sensitivity level of MSL 2 and the devices should be stored under
the following conditions:
am
lc s
on A
te G
nt
st
il
Rebaking will be required if the aluminized envelope has been open for more than 1 year. If rebaking is required,
it should be done at 90°C for 3 hours.
The T, FN, and CL packages have been assigned a moisture sensitivity level of MSL 3 and the devices should
be stored under the following conditions:
Temperature Range
Relative Humidity
Total Time
Opened Time
5°C to 50°C
60% maximum
12 months from the date code on the aluminized envelope — if unopened
168 hours or fewer
Te
ch
ni
ca
Rebaking will be required if the devices have been stored unopened for more than 12 months or if the aluminized
envelope has been open for more than 168 hours. If rebaking is required, it should be done at 50°C for 12 hours.
The LUMENOLOGY r Company
Copyright E 2010, TAOS Inc.
r
r
www.taosinc.com
41
TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N − AUGUST 2010
PRODUCTION DATA — information in this document is current at publication date. Products conform to
specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard
warranty. Production processing does not necessarily include testing of all parameters.
LEAD-FREE (Pb-FREE) and GREEN STATEMENT
al
id
Pb-Free (RoHS) TAOS’ terms Lead-Free or Pb-Free mean semiconductor products that are compatible with the current
RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous
materials. Where designed to be soldered at high temperatures, TAOS Pb-Free products are suitable for use in specified
lead-free processes.
Green (RoHS & no Sb/Br) TAOS defines Green to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and
Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material).
am
lc s
on A
te G
nt
st
il
lv
Important Information and Disclaimer The information provided in this statement represents TAOS’ knowledge and
belief as of the date that it is provided. TAOS bases its knowledge and belief on information provided by third parties,
and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate
information from third parties. TAOS has taken and continues to take reasonable steps to provide representative
and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and
chemicals. TAOS and TAOS suppliers consider certain information to be proprietary, and thus CAS numbers and other
limited information may not be available for release.
NOTICE
Texas Advanced Optoelectronic Solutions, Inc. (TAOS) reserves the right to make changes to the products contained in this
document to improve performance or for any other purpose, or to discontinue them without notice. Customers are advised
to contact TAOS to obtain the latest product information before placing orders or designing TAOS products into systems.
TAOS assumes no responsibility for the use of any products or circuits described in this document or customer product
design, conveys no license, either expressed or implied, under any patent or other right, and makes no representation that
the circuits are free of patent infringement. TAOS further makes no claim as to the suitability of its products for any particular
purpose, nor does TAOS assume any liability arising out of the use of any product or circuit, and specifically disclaims any
and all liability, including without limitation consequential or incidental damages.
ca
TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS, INC. PRODUCTS ARE NOT DESIGNED OR INTENDED FOR
USE IN CRITICAL APPLICATIONS IN WHICH THE FAILURE OR MALFUNCTION OF THE TAOS PRODUCT MAY
RESULT IN PERSONAL INJURY OR DEATH. USE OF TAOS PRODUCTS IN LIFE SUPPORT SYSTEMS IS EXPRESSLY
UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER’S RISK.
Te
ch
ni
LUMENOLOGY, TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are registered trademarks of Texas Advanced
Optoelectronic Solutions Incorporated.
Copyright E 2010, TAOS Inc.
The LUMENOLOGY r Company
r
r
42
www.taosinc.com