TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
1
The LUMENOLOGY r Company r
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Copyright E 2007, TAOS Inc.
www.taosinc.com
DMonolithic Silicon IC Containing
Photodiode, Operational Amplifier, and
Feedback Components
DConverts Light Intensity to a Voltage
DHigh Irradiance Responsivity, Typically
137 mV/(W/cm2) at p = 635 nm (TSL250R)
DCompact 3-Lead Clear Plastic Package
DSingle Voltage Supply Operation
DLow Dark (Offset) Voltage....10 mV Max
DLow Supply Current......1.1 mA Typical
DWide Supply-Voltage Range.... 2.7 V to 5.5 V
DReplacements for TSL250, TSL251, and
TSL252
DRoHS Compliant (−LF Package Only)
Description
The TSL250R, TSL251R, and TSL252R are light-to-voltage optical sensors, each combining a photodiode and
a transimpedance amplifier (feedback resistor = 16 MΩ, 8 MΩ, and 2.8 MΩ respectively) on a single monolithic
IC. Output voltage is directly proportional to the light intensity (irradiance) on the photodiode. These devices
have improved amplifier offset-voltage stability and low power consumption and are supplied in a 3-lead clear
plastic sidelooker package with an integral lens. When supplied in the lead (Pb) free package, the device is
RoHS compliant.
Functional Block Diagram
Voltage
Output
+
−
Available Options
DEVICE TAPACKAGE − LEADS PACKAGE DESIGNATOR ORDERING NUMBER
TSL250R 0°C to 70°C3-lead Sidelooker S TSL250R
TSL250R 0°C to 70°C3-lead Sidelooker — Lead (Pb) Free S TSL250R−LF
TSL250R 0°C to 70°C3-lead Surface-Mount Sidelooker — Lead (Pb) Free SM TSL250RSM−LF
TSL251R 0°C to 70°C3-lead Sidelooker S TSL251R
TSL251R 0°C to 70°C3-lead Sidelooker — Lead (Pb) Free S TSL251R−LF
TSL251R 0°C to 70°C3-lead Surface-Mount Sidelooker — Lead (Pb) Free SM TSL251RSM−LF
TSL252R 0°C to 70°C3-lead Sidelooker S TSL252R
TSL252R 0°C to 70°C3-lead Sidelooker — Lead (Pb) Free S TSL252R−LF
TSL252R 0°C to 70°C3-lead Surface-Mount Sidelooker — Lead (Pb) Free SM TSL252RSM−LF
r
r
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
PACKAGE S
SIDELOOKER
(FRONT VIEW)
1
GND
2
VDD
3
OUT
PACKAGE SM
SURFACE MOUNT
SIDELOOKER
(FRONT VIEW)
1
GND
2
VDD
3
OUT
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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Copyright E 2007, TAOS Inc. The LUMENOLOGY r Company
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Terminal Functions
TERMINAL
DESCRIPTION
NAME NO. DESCRIPTION
GND 1 Ground (substrate). All voltages are referenced to GND.
OUT 3 Output voltage
VDD 2Supply voltage
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VDD (see Note 1) 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current, IO ±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duration of short-circuit current at (or below) 25°C (see Note 2) 5 s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA −25°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg −25°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (S Package) 260°C. . . . . . . . . . . . . . . . . . . .
Reflow solder, in accordance with J-STD-020C or J-STD-020D (SM Package) 260°C. . . . . . . . . . . . . . . . . . .
†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.
NOTES: 1. All voltages are with respect to GND.
2. Output may be shorted to supply.
Recommended Operating Conditions
MIN NOM MAX UNIT
Supply voltage, VDD 2.7 5.5 V
Operating free-air temperature, TA0 70 °C
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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Electrical Characteristics at VDD = 5 V, TA = 25°C, λp = 635 nm, RL = 10 kΩ (unless otherwise noted)
(see Notes 3, 4, and 5)
PARAMETER
TEST TSL250R TSL251R TSL252R
UNIT
PARAMETER
TEST
CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT
VDDark voltage Ee = 0 0 4 10 0 4 10 0 4 10 mV
VOM
Maximum output
voltage VDD = 4.5 V 3.0 3.3 3.0 3.3 3.0 3.3 V
Ee = 14.6 μW/cm21.5 2 2.5
VOOutput voltage Ee = 38.5 μW/cm21.5 2 2.5 V
VO
Output voltage
Ee = 196 μW/cm21.5 2 2.5
V
E
e
= 14.6 μW/cm2,1.6 mV/°C
Temperature
Ee = 14
.
6 μW/cm
,
TA = 0°C to 70°C0.08 %/°C
T
emperature
coefficient of E
e
= 38.5 μW/cm2,1.6 mV/°C
αvo
coefficient of
output voltage
(V )
Ee = 38
.
5 μW/cm
,
TA = 0°C to 70°C0.08 %/°C
pg
(VO)E
e
= 196 μW/cm2,1.6 mV/°C
Ee = 196 μW/cm
,
TA = 0°C to 70°C0.08 %/°C
N
Irradiance
λp = 635 nm,
See Notes 5 and 7 137 52 10.2
mV/( W/cm2)
Ne
Irradiance
responsivity λp = 880 nm,
See Notes 6 and 7 127 48 9.4
mV/(μW/cm2)
Ee = 14.6 μW/cm21.1 1.7
IDD Supply current Ee = 38.5 μW/cm21.1 1.7 mA
DD
pp y
Ee = 196 μW/cm21.1 1.7
NOTES: 3. Measurements are made with RL = 10 kΩ between output and ground.
4. Optical measurements are made using small-angle incident radiation from an LED optical source.
5. The input irradiance Ee is supplied by an AlInGaP LED with peak wavelength λp = 635 nm
6. The input irradiance Ee is supplied by a GaAlAs LED with peak wavelength λp = 880 nm
7. Irradiance responsivity is characterized over the range VO = 0.05 to 2.9 V. The best-fit straight line of Output Voltage VO versus
irradiance Ee over this range will typically have a positive extrapolated VO value for Ee = 0.
Dynamic Characteristics at TA = 25°C (see Figure 1)
PARAMETER
TEST CONDITIONS
TSL250R TSL251R TSL252R
UNIT
PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT
trOutput pulse rise time VDD = 5 V, λp = 635 nm 260 70 7 μs
tfOutput pulse fall time VDD = 5 V, λp = 635 nm 260 70 7 μs
VnOutput noise voltage VDD = 5 V,
f = 1000 Hz
Ee = 0, 0.8 0.7 0.6 μV/√Hz
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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Copyright E 2007, TAOS Inc. The LUMENOLOGY r Company
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PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORM
TEST CIRCUIT
Input
Ee
10%
90%
Output
(see Note B)
tr
TSL25xR RL
VDD
2
1
3
+
−
Output
Pulse
Generator
LED
(see Note A) tf
90%
10%
NOTES: A. The input irradiance is supplied by a pulsed AlInGaP light-emitting diode with the following characteristics: λp = 635 nm,
tr < 1 μs, tf < 1 μs.
B. The output waveform is monitored on an oscilloscope with the following characteristics: tr < 100 ns, Zi ≥ 1 MΩ, Ci ≤ 20 pF.
Figure 1. Switching Times
TYPICAL CHARACTERISTICS
0.4
0
Normalized Output Voltage
1
0.8
0.6
0.2
θ − Angular Displacement
TSL250R
80°60°40°20°0°80°60°40°20°
Optical Axis
NORMALIZED OUTPUT VOLTAGE
vs
ANGULAR DISPLACEMENT
V −
O
Figure 2
TSL252R
TSL251R
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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Copyright E 2007, TAOS Inc.
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TYPICAL CHARACTERISTICS
0.01
0.1 1 10 100
− Output Voltage − V
OUTPUT VOLTAGE
vs
IRRADIANCE
0.1
1
10
O
V
Ee − Irradiance − μW/cm2
VDD = 5 V
λp = 635 nm
RL = 10 k
TA = 25°C
Figure 3
TSL250R
TSL251R
TSL252R
Figure 4
300 400 500 600 700 1000800 900 1100
λ − Wavelength − nm
Relative Responsivity
0
0.2
0.4
0.6
0.8
1.0
1.2
PHOTODIODE SPECTRAL RESPONSIVITY
TA = 25°C
Figure 5
4
2
1
0
5.52.5 3 3.5
5
MAXIMUM OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
4 4.5 5
− Maximum Output Voltage − V
V
OM
3
VDD − Supply Voltage − V
RL = 10 kΩ
TA = 25°C
Figure 6
1
0.6
012 3
1.6
4
1.4
1.2
0.8
VO − Output Voltage − V
− Supply Current − mA
IDD
SUPPLY CURRENT
vs
OUTPUT VOLTAGE
VDD = 5 V
RL = 10 k
TA = 25°C
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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Copyright E 2007, TAOS Inc. The LUMENOLOGY r Company
www.taosinc.com
APPLICATION INFORMATION
PCB Pad Layout
Suggested PCB pad layout guidelines for the SM surface mount package are shown in Figure 7.
3.2
1.0 1.0 1.0
1.01.0
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
Figure 7. Suggested SM Package PCB Layout
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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Copyright E 2007, TAOS Inc.
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MECHANICAL INFORMATION
The devices are supplied in a clear plastic three-lead package (S). The integrated photodiode active area is
typically 1,0 mm2 (0.0016 in2) for TSL250R, 0,5 mm2 (0.00078 in2) for the TSL251R, and 0,26 mm2 (0.0004 in2)
for the TSL252R.
PACKAGE S PLASTIC SINGLE-IN-LINE SIDE-LOOKER PACKAGE
1.642.60
2.30
4.60
R 0.90
1.80
0.42
1
2y 2
0.47 TYP
TOP VIEW
SIDE VIEWFRONT VIEW
0.42
1.56
14.86 + 0.50
4.60
0.15
Note B
Lead Free
Available
Pb
NOTES: A. All linear dimensions are in millimeters; tolerance is ± 0.25 mm unless otherwise stated.
B. Dimension is to center of lens arc, which is located below the package face.
C. The integrated photodiode active area is typically located in the center of the lens and 0.97 mm below the top of the lens surface.
D. Index of refraction of clear plastic is 1.55.
E. Lead finish for TSL25xR: solder dipped, 63% Sn/37% Pb. Lead finish for TSL25xR−LF: solder dipped, 100% Sn.
F. This drawing is subject to change without notice.
Figure 8. Package Configuration
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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Copyright E 2007, TAOS Inc. The LUMENOLOGY r Company
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MECHANICAL DATA
PACKAGE SM PLASTIC SURFACE MOUNT SIDE-LOOKER PACKAGE
1.642.60
2.30
4.60
R 0.90
1.80
0.42
1.00
0.47 TYP
TOP VIEW
SIDE VIEWFRONT VIEW
0.42
5.73 + 0.50
4.60
0.15 Note B
2.59
0.62 + 0.10 1.97
0.62 +0.10
−0.15
Lead Free
Pb
2y 2
NOTES: A. All linear dimensions are in millimeters; tolerance is ± 0.25 mm unless otherwise stated.
B. Dimension is to center of lens arc, which is located below the package face.
C. The integrated photodiode active area is typically located in the center of the lens and 0.97 mm below the top of the lens surface.
D. Index of refraction of clear plastic is 1.55.
E. Lead finish for TSL25xRSM−LF: solder dipped, 100% Sn.
F. This drawing is subject to change without notice.
Figure 9. Package SM — Surface Mount Side-Looker Package Configuration
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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Copyright E 2007, TAOS Inc.
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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
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).
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.
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.
LUMENOLOGY, TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are registered trademarks of Texas Advanced
Optoelectronic Solutions Incorporated.
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H − SEPTEMBER 2007
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