TPS852
TOSHIBA Photo-IC
Silicon Epitaxial Planar
TPS852
Mobile Phones
Notebook PCs, PDAs
Video cameras, Digital Still Cameras
Other Equipment Requiring Luminosity Adjustment
The TPS852 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 × 1.6 × 0.55 mm
Excellent output linearity of illuminance
Little fluctuation in light current and high level of sensitivity
TOSHIBA
―
: IL = 40 μA (typ.) @EV = 100 lx using fluorescent light
Weight: 0.003 g (typ.)
: 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
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
Supply voltage
VCC
Output voltage
VOUT
−0.5 to 7
<
= VCC
V
V
Light current
IL
5
mA
Permissible power dissipation
P
35
mW
ΔP/°C
−0.5
mW/°C
Operating temperature range
Topr
−30 to 85
°C
Storage temperature range
Tstg
−40 to 100
°C
Soldering temperature range (Note 1)
Tsol
260
°C
Power dissipation derating
(Ta > 25°C)
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
2007-10-01
TPS852
3
2
0.20
Package Dimensions
1
Unit: mm
Tolerance: ± 0.1
( ): Reference value
5
Size of light-receiving area:
(0.51mm x 0.12mm)
6
0.50
0.20
4
0.50
0.20
1.60
1.20
: Light-receiving area
0.3Typ.
1.60
5°
max0.2
5°
0.10
0.55
0.10
5°
max0.2
(0.8)
Pin connection
1. VCC
2. GND
3. GND
4. GND
5. GND
6. OUT
Weight: 0.003 g (typ.)
Block Diagram
1. VCC
Current
amp
6. OUT
2. GND
3. GND
4. GND
5. GND
3
2007-10-01
