Rainbow Electronics RPI-131 - Manual (Page 3)

RPI-131
Sensors
COLLECTOR CURRENT : I C (mA)
Fig.7 Response time vs.
collector current
10 100 0.1 1
1
10
100
1000
RESPONSE TIME : t
r
(
µ s)
R L
= 500 Ω
R L
= 1k Ω
R L
= 100 Ω
Ta = 25 ° C
V CC
= 5V
AMBIENT TEMPERATURE : Ta ( ° C)
− 20 0 20 40 60 80 100
10
50
40
30
20
0
FORWARD CURRENT : I
F
(mA)
Fig.8 Forward current falloff
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR-EMITTER VOLTAGE : V CE (V)
10 0
2
1
0
4
I F
= 25mA
20mA
15mA
10mA
5mA
3
2 4 6 8
Fig.9 Output characteristics
t d
t r t f
10%
90%
R L
V CC
t d :
t r :
t f :
Delay time
Rise time (time for output current to rise from
10% to 90% of peak current)
Fall time (time for output current to fall from 90%
to 10% of peak current)
Fig.10 Response time measurement circuit
Input
Input
Output
Output