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:
2.0mm × 2.1mm × 0.7 mm
•
Excellent output linearity of illuminance
•
Little fluctuation in light current and high level of sensitivity:
•
•
Light current variation width = ×1.67 (when light current
classification is specified.)
•
•
TOSHIBA
IL = 37 μA to 74 μA @EV = 100 lx using fluorescent light
0-2D1
Little temperature fluctuation
Weight: 0.0054 g (typ.)
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
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
Supply voltage
VCC
−0.5 to 7
V
Output voltage
VOUT
≤ VCC
V
Light current
IL
5
mA
Permissible power dissipation
P
35
mW
Operating temperature range
Topr
−30 to 85
°C
Storage temperature range
Tstg
−40 to 100
°C
Tsol
260
°C
Soldering temperature range
(Note 1)
Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even
if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum
ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Note 1: The reflow time and the recommended temperature profile are shown in the section entitled Handling
Precautions.
1
2008-07-10