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is now
ams AG
The technical content of this TAOS datasheet is still valid.
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TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H
−
SEPTEMBER 2007
D
Monolithic Silicon IC Containing
D
D
D
D
D
D
D
D
D
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
Available Options
DEVICE
T
A
TSL250R
TSL250R
TSL250R
TSL251R
TSL251R
TSL251R
TSL252R
TSL252R
TSL252R
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1
GND
2
V
DD
3
OUT
−
+
Voltage
Output
PACKAGE
−
LEADS
PACKAGE DESIGNATOR
S
S
S
S
S
S
SM
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
3-lead Sidelooker
3-lead Sidelooker — Lead (Pb) Free
3-lead Sidelooker
3-lead Surface-Mount Sidelooker — Lead (Pb) Free
3-lead Sidelooker — Lead (Pb) Free
3-lead Sidelooker
3-lead Sidelooker — Lead (Pb) Free
3-lead Surface-Mount Sidelooker — Lead (Pb) Free
SM
3-lead Surface-Mount Sidelooker — Lead (Pb) Free
SM
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road
S
Suite 300
S
Plano, TX 75074
S
(972) 673-0759
r
www.taosinc.com
1
r
lv
TSL250R
TSL250R−LF
TSL251R
TSL251R−LF
TSL252R
TSL252R−LF
Low Dark (Offset) Voltage....10 mV Max
Low Supply Current......1.1 mA Typical
Wide Supply-Voltage Range.... 2.7 V to 5.5 V
Replacements for TSL250, TSL251, and
TSL252
RoHS Compliant (−LF Package Only)
1
GND
al
2
V
DD
3
OUT
ORDERING NUMBER
TSL250RSM−LF
TSL251RSM−LF
TSL252RSM−LF
Copyright
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2007, TAOS Inc.
id
Photodiode, Operational Amplifier, and
Feedback Components
Converts Light Intensity to a Voltage
High Irradiance Responsivity, Typically
137 mV/(mW/cm
2
) at
l
p
= 635 nm (TSL250R)
Compact 3-Lead Clear Plastic Package
Single Voltage Supply Operation
PACKAGE S
SIDELOOKER
(FRONT VIEW)
PACKAGE SM
SURFACE MOUNT
SIDELOOKER
(FRONT VIEW)
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H
−
SEPTEMBER 2007
Terminal Functions
TERMINAL
NAME
GND
OUT
V
DD
NO.
1
3
2
Output voltage
Supply voltage
DESCRIPTION
Ground (substrate). All voltages are referenced to GND.
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)
†
†
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
Supply voltage, V
DD
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MIN
NOM
2.7
0
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www.taosinc.com
Supply voltage, V
DD
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
Output current, I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
10 mA
Duration of short-circuit current at (or below) 25°C (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 s
Operating free-air temperature range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−25°C
to 85°C
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−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
Operating free-air temperature, T
A
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Copyright
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2007, TAOS Inc.
The
LUMENOLOGY
r
Company
2
lv
MAX
5.5
70
V
al
UNIT
°C
id
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H
−
SEPTEMBER 2007
Electrical Characteristics at V
DD
= 5 V, T
A
= 25
°
C,
λ
p = 635 nm, R
L
= 10 k
Ω
(unless otherwise noted)
(see Notes 3, 4, and 5)
PARAMETER
V
D
V
OM
Dark voltage
Maximum output
voltage
Output voltage
TEST
CONDITIONS
E
e
= 0
V
DD
= 4.5 V
E
e
= 14.6
μW/cm
2
V
O
E
e
= 38.5
E
e
= 196
μW/cm
2
μW/cm
2
1.6
0.08
1.6
0.08
TSL250R
MIN
0
3.0
1.5
TYP
4
3.3
2
2.5
1.5
2
2.5
1.5
2
2.5
MAX
10
MIN
0
3.0
TSL251R
TYP
4
3.3
MAX
10
MIN
0
3.0
TSL252R
TYP
4
3.3
MAX
10
UNIT
mV
α
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0.08
10.2
9.4
λ
p
= 635 nm,
See Notes 5 and 7
λ
p
= 880 nm,
See Notes 6 and 7
E
e
= 14.6
μW/cm
2
E
e
= 38.5
μW/cm
2
E
e
= 196
μW/cm
2
137
127
1.1
52
48
1.7
1.1
1.7
1.1
TEST CONDITIONS
TSL250R
TYP
260
260
0.8
TSL251R
TYP
70
70
MIN
MAX
MIN
MAX
MIN
V
DD
= 5 V,
V
DD
= 5 V,
λ
p
= 635 nm
λ
p
= 635 nm
E
e
= 0,
V
DD
= 5 V,
f = 1000 Hz
0.7
r
r
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Temperature
coefficient of
output voltage
p
g
(V
O
)
E
e
= 38.5
μW/cm
2
,
T
A
= 0°C to 70°C
E
e
= 196
μW/cm
2
,
T
A
= 0°C to 70°C
N
e
Irradiance
responsivity
I
DD
Supply current
pp y
lv
1.6
1.7
TSL252R
TYP
7
7
MAX
0.6
E
e
= 14.6
μW/cm
2
,
T
A
= 0°C to 70°C
NOTES: 3.
4.
5.
6.
7.
Measurements are made with R
L
= 10 kΩ between output and ground.
Optical measurements are made using small-angle incident radiation from an LED optical source.
The input irradiance E
e
is supplied by an AlInGaP LED with peak wavelength
λ
p
= 635 nm
The input irradiance E
e
is supplied by a GaAlAs LED with peak wavelength
λ
p
= 880 nm
Irradiance responsivity is characterized over the range V
O
= 0.05 to 2.9 V. The best-fit straight line of Output Voltage V
O
versus
irradiance E
e
over this range will typically have a positive extrapolated V
O
value for E
e
= 0.
Dynamic Characteristics at T
A
= 25
°
C (see Figure 1)
PARAMETER
t
r
t
f
V
n
Output pulse rise time
Output pulse fall time
Output noise voltage
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mV/°C
%/°C
%/°C
%/°C
mV/°C
mV/°C
mV/(μW/cm
mV/( W/cm
2
)
mA
UNIT
μs
μs
μV/√Hz
Copyright
E
2007, TAOS Inc.
id
V
3
V
TSL250R, TSL251R, TSL252R
LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS028H
−
SEPTEMBER 2007
PARAMETER MEASUREMENT INFORMATION
V
DD
Pulse
Generator
LED
(see Note A)
TSL25xR
1
TEST CIRCUIT
−
+
R
L
Output
(see Note B)
10%
2
E
e
Input
3
Output
t
r
90%
90%
10%
t
f
NOTES: A. The input irradiance is supplied by a pulsed AlInGaP light-emitting diode with the following characteristics:
λ
p
= 635 nm,
t
r
< 1
μs,
t
f
< 1
μs.
Figure 1. Switching Times
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2007, TAOS Inc.
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TYPICAL CHARACTERISTICS
NORMALIZED OUTPUT VOLTAGE
vs
ANGULAR DISPLACEMENT
1
0.8
VO
−
Normalized Output Voltage
TSL252R
TSL251R
TSL250R
0.6
0.4
0.2
0
80°
60°
40° 20°
0°
20° 40°
θ
−
Angular Displacement
Optical Axis
60°
80°
Figure 2
r
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LUMENOLOGY
r
Company
www.taosinc.com
lv
B. The output waveform is monitored on an oscilloscope with the following characteristics: t
r
< 100 ns, Z
i
≥
1 MΩ, C
i
≤
20 pF.
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VOLTAGE WAVEFORM
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