TEPT4400 Datasheet, PDF (1/6 Pages) Vishay Siliconix – Ambient Light Sensor

Ambient Light Sensor
Description
TEPT4400, photo transistor for ambient light sensor
application, plays a key role in power savings strate-
gies by controlling LCD display intensity and keypad
backlighting of mobile devices and in industrial on/off-
lighting 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.
TEPT4400
Vishay Semiconductors
94 8396
Features
• High sensivity, I_PCE = 200 µA (E_V = 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
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 opera-
tion.
Replacement of CdS Photoresistors.
Absolute Maximum Ratings
T_amb = 25 °C unless otherwise specified
Parameter
Test condition
Collector Emitter Voltage
Emitter Collector Voltage
Collector current
Total Power Dissipation
Junction Temperature
T_amb ≤ 55 °C
Operating Temperature Range
Storage Temperature Range
Soldering Temperature
t<3s
Thermal Resistance Junction/
Ambient
Symbol
Value
Unit
V_CEO
6
V
V_ECO
1.5
V
I_C
20
mA
P_tot
100
mW
T_j
100
°C
T_amb
- 40 to + 85
°C
T_stg
- 40 to + 100
°C
T_sd
260
°C
R_thJA
350
K/W
Document Number 81341
Rev. 1.1, 03-Jul-06
www.vishay.com
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