○ Flat Panel Displays
○ Mobile Phones
○ Notebook PCs, PDAs
○ Video cameras, Digital Still Cameras
○ Other Equipment Requiring Luminosity Adjustment

The TPS859 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 : 1.6 mm× 1.6 mm × 0.55 mm
• Excellent output linearity of illuminance
• Little fluctuation in light current and high level of sensitivity : IL = 230 μA (typ.) @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) = 1.0 (typ.)
• Low supply voltage, making device suitable for battery-powered equipment: VCC = 1.8 V to 5.5 VA