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.

FEATUREs
• High sensivity, IPCE = 200 µA (EV = 100 lx)
• Adapted to human eye responsivity
• Wide angle of half sensitivity ϕ = ± 30°
• 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 operation.
   Replacement of CdS Photoresistors.