
S9648 photo IC has spectral response close to human eye sensitivity. Two active areas are made on a single chip. Almost only the visible range
can be measured by finding the difference between the two output signals in the internal current amplifier circuit. Compared to the conventional
type, S9648 offers lower output fluctuations for light sources producing the same illuminance at different color temperatures. S9648 is
encapsulated in a plastic package having the same shape as to metal packages. The shape of S9648 also resembles our 5R type visible sensors
(CdS photoconductive cells), so S9648 can be used as a replacement for those visible sensors.
Features
l Spectral response close to human eye sensitivity
is attained without using visual-compensated filter.
l Operation just as easy to use as a photodiode
l Lower output-current fluctuations compared with
phototransistors and CdS photoconductive cells.
l Excellent linearity
l Low output fluctuations for light sources producing the
same illuminance at different color temperatures
Applications
l Energy-saving sensor for TVs, etc.
l Light dimmers for liquid crystal panels
l Various types of light level measurement
PHOTO
IC
Photo IC diode
Plastic package shaped the same as metal package
S9648
1
s Absolute maximum ratings (Ta=25 °C)
Parameter
Symbol
Value
Unit
Maximum reverse voltage
VR Max.
-0.5 to 16
V
Photocurrent
IL
10
mA
Forward current
IF
10
mA
Power dissipation *
1
P
250
mW
Operating temperature
Topr
-30 to +80
°C
Storage temperature
Tstg
-40 to +85
°C
*1: Derate power dissipation at a rate of -3.3 mW/°C above Ta=25 °C.
s Electrical and optical characteristics (Ta=25
°C, unless otherwise noted.)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Spectral response range
λ
-
320 to 820
-
nm
Peak sensitivity wavelength
λp
-
560
-
nm
Dark current
ID
VR=5 V
-
1.0
50
nA
Photocurrent
IL
VR=5 V, 100 lx
-
0.29
-
mA
Rise time *
2
tr
10 to 90 %, VR=7.5 V
RL=10 k
, λ=560 nm
-6.0
-
ms
Fall time *
2
tf
90 to 10 %, VR=7.5 V
RL=10 k
, λ=560 nm
-
2.5
-
ms
*2: Rise/fall time measurement method
PULSED LIGHT
FROM LED
(
l=560 nm)
VO
LOAD
RESISTANCE RL
7.5 V
90 %
2.5 V
10 %
VO
tr
tf
0.1 F
KPICC0041EA