Toshiba TPS856 Owner's Manual

Mobile Phones
Notebook PCs, PDAs
Video cameras, Digital Still Cameras
Other Equipment Requiring Luminosity Adjustment
The TPS856 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.
This device includes stand-by function which can reduce the power consumption.
•
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
: I = 57 μA (typ.) @E
L
: 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
: I (using incandescent light)/I
L
• Low supply voltage, making device suitable for battery-powered equipment: V
Absolute Maximum Ratings
Characteristics
Supply voltage
Stand-by voltage
Output voltage
Light current
Permissible power dissipation
Power dissipation derating
(Ta > 25°C)
Operating temperature range
Storage temperature range
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.
TOSHIBA Photo-IC Silicon Epitaxial Planar
TPS856
= 100 lx using fluorescent light
V
(using fluorescent light) = 1.0 (typ.)
L
(Ta = 25°C)
Symbol
V
CC
Vstb
V
OUT
I
L
P
ΔP/°C
T
opr
T
stg
T
sol
Rating Unit
−0.5 to 6
V
< = V
V
CC
< = Vstb
V
5 mA
30 mW
−0.4
mW/°C
−30 to 85
°C
−40 to 100
°C
260 °C
1
TPS856
TOSHIBA ―
Weight: 0.003 g (typ.)
= 1.8 V to 5.5 V
CC
2007-10-01