LOW INPUT CURRENT
HIGH GAIN SPLIT
DARLINGTON OPTOCOUPLERS
SINGLE-CHANNEL
6N138
6N139
Fig. 16 Propagation Delay vs. Input Diode Forward Current
(6N138 / 6N139 Only)
70
DUAL-CHANNEL
HCPL-2730
HCPL-2731
Fig. 17 Propagation Delay vs. Input Diode Forward Current
(HCPL-2730 / HCPL-2731 Only)
70
V
CC
= 5 V
T
A
= 25˚C
60
V
CC
= 5 V
T
A
= 25˚C
60
t
P
- PROPAGATION DELAY - µs
50
t
P
- PROPAGATION DELAY - µs
50
(t
PHL
) R
L
= 2.2 kΩ or 4.7 kΩ
40
(t
PHL
) R
L
= 2.2 kΩ or 4.7 kΩ
40
30
30
(t
PLH
) R
L
= 4.7 kΩ
20
(t
PLH
) R
L
= 2.2 kΩ
20
(t
PLH
) R
L
= 4.7 kΩ
10
10
(t
PLH
) R
L
= 2.2 kΩ
0
0
0
1
2
3
4
5
6
7
8
9
10
0
2
4
6
8
10
I
F
- INPUT DIODE FORWARD CURRENT - mA
I
F
- INPUT DIODE FORWARD CURRENT - mA
Fig. 18 Propagation Delay to Logic Low vs. Pulse Period
(6N138 / 6N139 Only)
100
Fig. 19 Propagation Delay to Logic Low vs. Pulse Period
(HCPL-2730 / HCPL-2731 Only)
100
t
PHL
- PROPAGATION DELAY to LOGIC LOW - µs
6N139
I
F
= 0.5 mA
R
L
= 4.7 kΩ
10
t
PHL
- PROPAGATION DELAY to LOGIC LOW - µs
10
HCPL-2731
I
F
= 0.5 mA
R
L
= 4.7 kΩ
6N138
I
F
= 1.6 mA
R
L
= 2.2 kΩ
1
1
HCPL-2730
HCPL-2731
I
F
=1.6 mA
R
L
= 2.2kΩ
T
A
= 25˚C
T
A
= 25˚C
0.1
0.01
0.1
1
10
0.1
0.01
0.1
1
10
T - INPUT PULSE PERIOD - ms
T - INPUT PULSE PERIOD - ms
Fig. 20 Propagation Delay vs. Temperature
(6N138 / 6N139 Only)
50
HCPL-2730 : I
F
= 1.6 mA, R
L
= 2.2 k
HCPL-2731 : I
F
= 0.5 mA, R
L
= 4.7 k
40
40
50
Fig. 21 Propagation Delay vs. Temperature
(HCPL-2730 / HCPL-2731 Only)
HCPL-2730 : I
F
= 1.6 mA, R
L
= 2.2 k
HCPL-2731 : I
F
= 0.5 mA, R
L
= 4.7 k
t
P
- PROPAGATION DELAY - µs
t
PLH
(HCPL-2731)
30
t
P
- PROPAGATION DELAY - µs
t
PLH
(HCPL-2731)
30
20
t
PLH
(HCPL-2730)
20
t
PLH
(HCPL-2730)
10
t
PHL
(HCPL-2731)
t
PHL
(HCPL-2730)
10
t
PHL
(HCPL-2731)
t
PHL
(HCPL-2730)
0
0
10
20
30
40
50
60
70
80
0
0
10
20
30
40
50
60
70
80
T
A
- TEMPERATURE (˚C)
T
A
- TEMPERATURE (˚C)
12/27/99
200023A
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
