Rainbow Electronics RPI-222 - Manual (Page 3)

RPI-222
Sensors
RELATIVE COLLECTOR CURRENT : I
C
(%)
DISTANCE : d (mm)
Fig.7 Relative output current
vs. distance ( ΙΙ )
0.5 0 1.0 1.5 2.0 2.5
0
20
40
60
80
100
d
t = 0.6 mm
RELATIVE TIME : t
r
,t f
(
µ s)
COLLECTOR CURRENT : I C (mA)
Fig.8 Response time
vs. output current
100 0.1 1 10
1
10
100
1000
Ta = 25 ° C
V CC
= 5V
R L
= 1k Ω
R L
= 500 Ω
R L
= 100 Ω
− 20 0 20 40 60 80 100
10
50
40
30
20
0
AMBIENT TEMPERATURE : Ta ( ° C)
FORWARD CURRENT : I
F
(mA)
Fig.9 Forward current falloff
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR − EMITTER VOLTAGE : V CE (V)
Fig.10 Output characteristics
4 8 6 10 2 0
0
1.5
3.0
I F
= 50mA
40mA
30mA
20mA
10mA
t d
t r t f
10%
90%
R L
V CC Input
Input
Output
Output
t d : Delay time
t r : Rise time (time for output current to rise
from 10% to 90% of peak current)
t f : Fall time (time for output current to fall
from 90% to 10% of peak current)
Fig.11 Response time mesurement circuit