4N25 4N25A 4N26 4N27 4N28
100
70
50
t on, TURN–ON TIME (
µ
s)
20
10
7
5
RL = 1000
100
10
VCC = 10 V
100
70
50
t off , TURN–OFF TIME (
µ
s)
20
RL = 1000
10
7
5
100
10
2
0.2
0.5 0.7 1
2
5 7 10
20
50 70 100
1
0.1
0.2
0.5 0.7 1
2
5 7 10
20
50 70 100
VCC = 10 V
2
1
0.1
IF, LED INPUT CURRENT (mA)
IF, LED INPUT CURRENT (mA)
Figure 7. Turn–On Switching Times
(Typical Values)
I , TYPICAL COLLECTOR CURRENT (mA)
C
4
IF = 0
3
20
IB = 7
µA
6
µA
C, CAPACITANCE (pF)
5
µA
2
4
µA
3
µA
1
2
µA
1
µA
0
2
4
6
8
10
12
14
16
18
20
18
16
14
12
10
8
6
4
2
Figure 8. Turn–Off Switching Times
(Typical Values)
CLED
CCB
f = 1 MHz
CEB
CCE
0
0.05 0.1
0.2
0.5
1
2
5
10
20
50
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
V, VOLTAGE (VOLTS)
Figure 9. DC Current Gain (Detector Only)
Figure 10. Capacitances versus Voltage
TEST CIRCUIT
VCC = 10 V
IF = 10 mA
INPUT
RL = 100
Ω
10%
OUTPUT
WAVEFORMS
INPUT PULSE
OUTPUT PULSE
90%
tr
ton
tf
toff
Figure 11. Switching Time Test Circuit and Waveforms
4
Motorola Optoelectronics Device Data
MOTOROLA [ MOTOROLA, INC ]
