Data Sheet

©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
6N138, 5N139, NCPL2730, HCPL2731 Rev. 1.0.5 8
Single-Channel: 6N138, 6N139 Dual-Channel: HCPL2730, HCPL2731 — Low Input Current High Gain Split Darlington Optocouplers
Typical Performance Curves (Continued)
Fig. 15 Output Current vs
Input Diode Forward Current
(HCPL2730 / HCPL2731 Only)
I
F
- INPUT DIODE FORWARD CURRENT -mAI
F
- INPUT DIODE FORWARD CURRENT -mA
0.1 1 10 100
I
O
- OUTPUT CURRENT -mA
0.1
1
10
100
T
A
= -40˚C
T
A
= 25˚C
T
A
= 85˚C
V
CC
= 5.0V
V
O
= 0.4V
Fig. 14 Output Current vs. Input Diode Forward Current
(6N138 / 6N139 Only)
0.01 0.1 1 10
I
O
- OUTPUT CURRENT (mA)
0
0
1
10
100
T
A
= -40˚C
T
A
= 0˚C
T
A
= 25˚C
T
A
= 70˚C
V
CC
= 5V
V
O
= 0.4V
T
A
= 85˚C
Fig. 13 Output Current vs Output Voltage
(HCPL2730 / HCPL2731 Only)
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
I
O
-OUTPUT CURRENT -mA
CTR - CURRENT TRANSFER RA
TIO (%)
20
40
60
80
100
120
T
A
= 25˚C
V
CC
= 5.0V
I
F
= 4.0mA
I
F
= 5.0mA
I
F
= 1.0mA
I
F
= 0.5mA
I
F
= 2.0mA
I
F
= 2.5mA
I
F
= 3.0mA
I
F
= 1.5mA
I
F
= 4.5mA
I
F
= 3.5mA
Fig. 12 Output Current vs Output Voltage
(6N138 / 6N139 Only)
V
O
- OUTPUT VOLTAGE (V) V
O
- OUTPUT VOLTAGE (V)
012
I
O
- OUTPUT CURRENT (mA)
0
10
20
30
40
50
60
1mA
2mA
5mA
3mA
1.5mA
2.5mA
3.5mA
4mA
4.5mA
V
CC
= 5V
T
A
= 25˚C
Fig. 11 Current Transfer Ratio vs. Forward Current
(HCPL2730 / HCPL2731 Only)
I
F
- FORWARD CURRENT -mA R
BE
- BASE RESISTANCE (kΩ)
0.1 1 10 100
0
1000
2000
3000
4000
5000
V
CC
= 5 V
V
O
= 0.4 V
T
A
= 70˚C
T
A
= 85˚C
T
A
= 25˚C
T
A
= 0˚C
T
A
= -40˚C
CTR - CURRENT TRANSFER RATIO (%)
Fig. 10 Current Transfer Ratio vs. Base-Emitter Resistance
(6N138 / 6N139 Only)
1101001000
0
200
400
600
800
1000
1200
1400
1600
I
F
= 1.6mA
V
CC
= 5 V
V
O
= 0.4 V