Data Sheet

©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
6N138, 5N139, NCPL2730, HCPL2731 Rev. 1.0.5 9
Single-Channel: 6N138, 6N139 Dual-Channel: HCPL2730, HCPL2731 — Low Input Current High Gain Split Darlington Optocouplers
Typical Performance Curves (Continued)
Fig. 19 Propagation Delay vs. Input Diode Forward Current
(HCPL2730 / HCPL2731 Only)
I
F
- INPUT DIODE FORWARD CURRENT (mA)I
F
- INPUT DIODE FORWARD CURRENT (mA)
0246810
t
P
- PROPAGA
TION DELAY - µs
0
10
20
30
40
50
60
70
(t
PHL
) R
L
= 2.2 kΩ or 4.7 kΩ
(t
PLH
) R
L
= 4.7 kΩ
(t
PLH
) R
L
= 2.2 kΩ
V
CC
= 5 V
T
A
= 25˚C
Fig. 21 Propagation Delay to Logic Low vs. Pulse Period
(HCPL2730 / HCPL2731 Only)
0.01 0.1 1 10
t
PHL
- PROPAGA
TION DELAY to LOGIC LOW (
µs)
Fig. 20 Propagation Delay to Logic Low vs. Pulse Period
(6N138 / 6N139 Only)
T - INPUT PULSE PERIOD - ms T - INPUT PULSE PERIOD - ms
t
PHL
- PROPAGATION DELAY to LOGIC LOW -
µs
0.1
1
10
100
HCPL2730
HCPL2731
I
F
=1.6mA
R
L
= 2.2kΩ
T
A
= 25˚C
HCPL2731
I
F
= 0.5mA
R
L
= 4.7kΩ
Fig. 18 Propagation Delay vs. Input Diode Forward Current
(6N138 / 6N139 Only)
t
P
- PROPAGATION DELAY -
µs
012345678910
0
10
20
30
40
50
60
70
0.01 0.1 1 10
0.1
1
10
100
(t
PHL
) R
L
= 2.2 kΩ or 4.7 kΩ
(t
PLH
) R
L
= 4.7 kΩ
(t
PLH
) R
L
= 2.2 kΩ
V
CC
= 5 V
T
A
= 25˚C
6N139
I
F
= 0.5mA
R
L
= 4.7kΩ
6N138
I
F
= 1.6mA
R
L
= 2.2kΩ
T
A
= 25˚C
Fig. 16 Logic Low Supply Current vs.
Input Diode Forward Current
(6N138 / 6N139 Only)
I
F
- FORWARD CURRENT (mA)
0246810121416
I
CCL
- LOGIC LOW SUPPLY CURRENT (mA)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
V
CC
= 5V
V
CC
= 18V
Fig. 17 Logic Low Supply Current vs.
Input Diode Forward Current
(HCPL2730 / HCPL2731 Only)
I
F
- INPUT DIODE FORWARD CURRENT (mA)
0.1 1 10 100
I
CCL
- LOGIC L
OW SUPPLY CURRENT - mA
0.1
1
10
100
T
A
= 25˚C
HCPL2731
V
CC
= 18V
HCPL2730
HCPL2731
V
CC
= 7V