VISHAY TEPT4400

TEPT4400
Vishay Semiconductors
Ambient Light Sensor
Description
TEPT4400, photo transistor for ambient light sensor
application, plays a key role in power savings strategies by controlling LCD display intensity and keypad
backlighting of mobile devices and in industrial on/offlighting operation. It is sensitive to visible light much
like the human eye and has peak sensitivity at 570 nm.
TEPT4400 is packaged in a T 1" package.
94 8396
Features
Applications
•
•
•
•
•
Ambient light sensor for control of display backlight
dimming in LCD displays and keypad backlighting of
mobile devices and in industrial on/off-lighting operation.
Replacement of CdS Photoresistors.
High sensivity, IPCE = 200 µA (EV = 100 lx)
Adapted to human eye responsivity
Wide angle of half sensitivity ϕ = ± 30°
e4
T 1" package (3 mm)
Lead (Pb)-free component in accordance with
RoHS 2002/95/EC and WEEE 2002/96/EC
Absolute Maximum Ratings
Tamb = 25 °C unless otherwise specified
Symbol
Value
Unit
Collector Emitter Voltage
Parameter
Test condition
VCEO
6
V
Emitter Collector Voltage
VECO
1.5
V
Collector current
Total Power Dissipation
Tamb ≤ 55 °C
Junction Temperature
IC
20
mA
Ptot
100
mW
Tj
100
°C
°C
Operating Temperature Range
Tamb
- 40 to + 85
Storage Temperature Range
Tstg
- 40 to + 100
°C
Tsd
260
°C
RthJA
350
K/W
Soldering Temperature
Thermal Resistance Junction/
Ambient
Document Number 81341
Rev. 1.1, 03-Jul-06
t<3s
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TEPT4400
Vishay Semiconductors
Basic Characteristics
Tamb = 25 °C unless otherwise specified
Parameter
Test condition
Collector Emitter Breakdown
Voltage
IC = 0.1 mA
Symbol
Min
VCEO
6
Typ.
Max
Unit
V
Collector dark current
VCE = 5 V, E = 0
ICEO
3
Collector-emitter capacitance
VCE = 0 V, f = 1 MHz, E = 0
CCEO
16
Collector Light Current
Ev = 20 lx, CIE illuminant A,
VCE = 5 V
IPCE
Ev = 100 lx, CIE illuminant A,
VCE = 5 V
IPCE
200
µA
Angle of Half Sensitivity
ϕ
± 30
deg
Wavelength of Peak Sensitivity
λp
570
nm
λ0.1
360 to 970
nm
VCEsat
0.1
V
Range of Spectral Bandwidth
Collector Emitter Saturation
Voltage
Ev = 20 lx, standard light A,
IPCE = 1.2 µA
15
50
nA
70
µA
pF
40
Typical Characteristics
Tamb = 25 °C unless otherwise specified
400
VCE = 5 V
10 -8
10 -9
10 -10
10 -11
10 -12
- 20
0
20
40
60
80
250
200
100 lx
150
100
50 lx
20 lx
0
100
0
Tamb - Ambient Temperature (°C)
19758
20210
Figure 1. Collector Dark Current vs. Ambient Temperature
2
1
3
4
VCE - Collector Emitter Voltage (V)
5
Figure 3. Photo Current vs. Collector Emitter Voltage
10000
2.2
VCE = 5 V
2.0
IPCE - Photo Current (µA)
IPCE rel - Relative Photo Current
300
50
10 -13
- 40
1.8
1.6
1.4
1.2
1.0
0.8
0.6
1000
100
0.4
VCE = 5 V, T = 2856 K
0.2
10
0.0
- 40
19759
- 20
0
20
40
60
80
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10
100
Tamb - Ambient Temperature (°C)
Figure 2. Relative Photo Current vs. Ambient Temperature
2
200 lx
350
10 -7
I PCE - Photo Current (µA)
ICEO - Collector Dark Current (A)
10 -6
20149
100
1000
E v - Illuminance (Ix)
Figure 4. Photo Current vs. Illuminance
Document Number 81341
Rev. 1.1, 03-Jul-06
TEPT4400
Vishay Semiconductors
CCE0 - Collector Emitter Capacitance (pF)
0°
10°
20°
25
30°
Srel- Relative Sensitivity
f = 1 MHz
20
15
10
5
40°
1.0
0.9
50°
0.8
60°
70°
0.7
80°
0
0.1
19762
1.0
10.0
VCE - Collector Emitter Voltage (V)
S( λ ) rel -Relative Spectral Sensitivity
Figure 5. Collector Emitter Capacitance vs.
Collector Emitter Voltage
20159
0.6
0.4
0.2
0
0.2
0.4
0.6
Figure 7. Relative Radiant Sensitivity vs. Angular Displacement
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
300 400 500 600 700 800 900 1000 1100
20019
λ - Wavelength (nm)
Figure 6. Relative Spectral Sensitivity vs. Wavelength
Document Number 81341
Rev. 1.1, 03-Jul-06
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TEPT4400
Vishay Semiconductors
Package Dimensions in mm
96 12190
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Document Number 81341
Rev. 1.1, 03-Jul-06
TEPT4400
Vishay Semiconductors
Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating
systems with respect to their impact on the health and safety of our employees and the public, as well as
their impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are
known as ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs
and forbid their use within the next ten years. Various national and international initiatives are pressing for an
earlier ban on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use
of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments
respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design
and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each
customer application by the customer. Should the buyer use Vishay Semiconductors products for any
unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all
claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal
damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Document Number 81341
Rev. 1.1, 03-Jul-06
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Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
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or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
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Document Number: 91000
Revision: 08-Apr-05
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