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TPS851
Photosensor
TPS851 TOSHIBA Photo IC Silicon Epitaxial Planar
TPS851 Mobile Phones, PHS
Notebook PCs, PDAs
Video cameras, Digital Still Cameras
Other Equipment Requiring Luminosity Adjustment
The TPS851 is an ultra-compact surface-mount photo-IC for
illuminance sensors which incorporates a photodiode and current amp
circuit in a single chip.
The sensitivity is superior to that of a phototransistor, and exhibits
little variation.
It has spectral sensitivity closer to luminous efficiency and excellent
output linearity.
With its ultra-compact surface-mount package, this photo-IC can be
used as the power-saving control for domestic appliances or for
backlighting for displays in cellular phones, this device enables low
power consumption to be achieved. Ultra-compact and light surface-mount package suitable for lead-free soldering and reflow soldering: 2.0 × 2.1 × 0.7 mm Excellent output linearity of illuminance Little fluctuation in light current and high level of sensitivity
: IL = 37 µA to 74 µA @EV = 100 lx using fluorescent light : Light current variation width: ×1.67 (when light current classification is specified.) : Little temperature fluctuation Built-in luminous-efficiency correction function, reduced sensitivity variations due to various light sources
: IL (using incandescent light)/IL (using fluorescent light) = 1.2 (typ.) Low supply voltage, making device suitable for battery-powered equipment: VCC = 2.7 V to 5.5 V
Maximum Ratings (Ta ��� � 25°C) Tsol 260�
Note 1: The reflow time and the recommended temperature profile are shown in the section entitled Handling
Precautions.
Weight: 0.0054 g (typ.)
