13
5.0 mA
50 4.5 mA
4.0 mA
25
3.5 mA
3.0 mA
2.5 mA
2.0 mA
1.5 mA
1.0 mA
0.5 mA
VCC = 5 V
0
TA = 25° C
0
1.0
2.0
VO – OUTPUT VOLTAGE – V
Figure 1. 6N138/6N139 DC Transfer
Characteristics.
85°C
2000
1600
1200
70°C
25°C
70°C
-40°C
800
400
VCC = 5 V
VO = 0.4 V
0
0.1
1.0
10
IF – FORWARD CURRENT – mA
Figure 2. Current Transfer Ratio vs.
Forward Current 6N138/6N139.
100
10
TA = 85° C
1.0
TA = 70° C
0.1
TA = 25° C
TA = 0° C
TA = -40° C
0.01
0.01
0.1
1
10
IF – INPUT DIODE FORWARD CURRENT – mA
Figure 3. 6N138/6N139 Output
Current vs. Input Diode Forward
Current.
1000
100
10
1.0
0.1
IF
+
VF
–
TA = 85°C
TA = 70°C
0.01
0.001
1.1 1.2 1.3
TA = 25°C
TA = 0°C
TA = -40°C
1.4 1.5 1.6
VF – FORWARD VOLTAGE – V
40
IF = 0.5 mA
35
RL = 4.7 kΩ
1/f = 50 µs
30
tPLH
25
20
15
10
tPHL
5
0
-60 -40 -20 0 20 40 60 80 100
TA – TEMPERATURE – °C
24
IF = 1.6 mA
21
RL = 2.2 kΩ
1/f = 50 µs
18
tPLH
15
12
9
6
3
tPHL
0
-60 -40 -20 0 20 40 60 80 100
TA – TEMPERATURE – °C
Figure 4. Input Diode Forward
Current vs. Forward Voltage.
Figure 5. Propagation Delay vs.
Temperature.
Figure 6. Propagation Delay vs.
Temperature.
4
1.6
IF = 12 mA
RL = 270 kΩ
1/f = 50 µs
tPLH
3
1.5
2
1.4
IF = 1.6 mA
100
TA = 25° C
tf
tr
10
1
tPHL
0
-60 -40 -20 0 20 40 60 80 100
TA – TEMPERATURE – °C
1.3
1.2
-60 -40 -20 0 20 40 60 80 100
TA – TEMPERATURE – °C
IF – ADJUSTED FOR VOL = 2 V
1
0.1
1.0
10
RL – LOAD RESISTANCE – kΩ
Figure 7. Propagation Delay vs.
Temperature.
Figure 8. Forward Voltage vs.
Temperature.
Figure 9. Nonsaturated Rise and Fall
Times vs. Load Resistance.