4N25 4N25A 4N26 4N27 4N28
TYPICAL CHARACTERISTICS
2
VF, FORWARD VOLTAGE (VOLTS)
PULSE ONLY
PULSE OR DC
1.8
I C , OUTPUT COLLECTOR CURRENT (NORMALIZED)
10
NORMALIZED TO:
IF = 10 mA
1
1.6
1.4
TA = –55°C
1.2
1
1
25°C
100°C
10
100
IF, LED FORWARD CURRENT (mA)
1000
0.1
0.01
0.5
1
2
5
10
20
IF, LED INPUT CURRENT (mA)
50
Figure 1. LED Forward Voltage versus Forward Current
Figure 2. Output Current versus Input Current
I C , OUTPUT COLLECTOR CURRENT (NORMALIZED)
28
IC , COLLECTOR CURRENT (mA)
24
20
16
5 mA
12
8
4
0
0
1
2
3
4
5
6
7
8
2 mA
1 mA
9
10
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
IF = 10 mA
10
7
5
2
1
0.7
0.5
0.2
0.1
–60
–40
–20
0
20
40
60
80
100
TA, AMBIENT TEMPERATURE (°C)
NORMALIZED TO TA = 25°C
Figure 3. Collector Current versus
Collector–Emitter Voltage
ICEO, COLLECTOR–EMITTER DARK CURRENT
(NORMALIZED)
Figure 4. Output Current versus Ambient Temperature
100
NORMALIZED TO:
VCE = 10 V
TA = 25°C
t, TIME (
µ
s)
50
20
10
5
2
1
0.1
RL = 1000
RL = 100
VCC = 10 V
100
10
VCE = 30 V
1
10 V
0
20
40
60
80
100
{
{
tr
tf
tf
tr
0.1
TA, AMBIENT TEMPERATURE (°C)
0.2
0.5
1
2
5
10
20
IF, LED INPUT CURRENT (mA)
50
100
Figure 5. Dark Current versus Ambient Temperature
Figure 6. Rise and Fall Times
(Typical Values)
Motorola Optoelectronics Device Data
3
MOTOROLA [ MOTOROLA, INC ]
