M O D U L E
Light emitting/receiving module
P8212
Integrated light emitting/receiving elements for automobile VICS
P8212 is a light emitting/receiving module consisting of an LED array and a photodiode in the same small package. The width of
this module is minimized so that automobile antennas can be designed thin. A lens is also fitted onto the photodiode to increase
the amount of input light. Although the lens makes the photodiode directivity narrow, this problem was solved by separating the
photodiode optical axis from the LED axis to match the light emitting and receiving areas required for VICS.
Features
Applications
Small package
Automobile VICS
Lens design optimized for light emitting/receiving timings
Cylindrical lens with less pickup error during component
mounting
Absolute maximum ratings (Ta=25 °C)
■
Parameter
Symbol
VR Max.
VR Max.
IFP
Value
20
Unit
V
Photodiode reverse voltage
LED reverse voltage
4
V
LED pulse forward current *1
Operating temperature
Storage temperature
1300
mA
°C
°C
Topr
-30 to +95
-40 to +115
Tstg
*1: 64 kHz, duty ratio=50 %, 4 ms ON, average duty ratio=2.5 %
Electrical and optical characteristics for photodiode (Ta=25 °C)
parameter
■
Symbol
Condition
Min.
Typ.
Max.
Unit
nm
Spectral response range
-
480 to 1100
-
-
l
Peak sensitivity wavelength
-
960
620
540
33
nm
lp
520
460
27
-
-
mA/W
mA/W
mA
l=lp
Photo sensitivity
S
-
l=850 nm
Short circuit current
Dark current
ISC
ID
100 lx, 2856 K
VR=12 V
-
1
10
nA
VR=12 V, RL=1 kW
l=850 nm, -3dB
VR=12 V, f=1 MHz
Direction in long side
Direction in short side
Cut-off frequency
fc
Ct
-
-
4
-
MHz
pF
Terminal capacitance
Directivity at half width
-
-
-
40
±55
-
-
-
degree
+35, -18
Electrical and optical characteristics for LED (Ta=25 °C)
■
parameter
Symbol
Condition
Min.
Typ.
850
40
Max.
Unit
nm
Peak emission wavelength
Spectral half width
IF=100 mA
830
900
lp
IF=100 mA
IFP=900 mA *2
-
-
7.4
10
-
nm
Dl
Pulse forward voltage
Reverse current
VFP
IR
5.5
6.3
-
V
VR=4 V
FIPe=p9I00 mA *2
-
mA
Pulse
radiant
intensity
1400
1800
20
mW/sr
MHz
Cut-off frequency
fc
-
IF=100 mA±10 mAp-p
Direction in long side
Direction in short side
-
-
-
-
±30
±13
-
Directivity at half width
degree
-
*2: Average peak value in pulse operation at 64 kHz, 50 % duty ratio, 4 ms ON
1