100
10
I
= 5.0 mA
V
= 5.0 V
= 0.4 V
F
V
= 5.0 V
= 0.4 V
CC
CC
60
30
0
2500
2000
1500
1000
I
= 4.5 mA
V
V
F
O
T
= 0° C
O
A
I
I
= 4.0 mA
= 3.5 mA
F
F
T
= 25° C
A
T
= 70° C
= 85° C
= -40° C
A
T
= 85° C
= 25° C
= -40° C
= 2.5 mA
I
I
I
A
T
F
F
F
A
= 2.0 mA
= 1.5 mA
T
T
A
A
T
A
1.0
0.1
500
0
T
= 25° C
A
V
= 5.0 V
CC
0
1
2
0.1
1.0
10
0.1
1
10
V
– OUTPUT VOLTAGE – V
O
I
– INPUT DIODE FORWARD CURRENT – mA
I
– FORWARD CURRENT – mA
F
F
Figure 1. DC Transfer Characteristics.
Figure 2. Current Transfer Ratio vs.
Forward Current.
Figure 3. Output Current vs. Input
Diode Forward Current.
100
100
1000
100
50 µs
I
T
F
0
O
T
A
= 25° C
5 V
1.5 V
V
V
OL
I
F
t
PHL
T
= 25°C
A
HCPL-2731/0731
= 0.5 mA
+
V
–
10
1.0
10
1.0
0.1
10
1.0
0.1
I
F
F
HCPL-2731
R = 4.7 kΩ
L
V
CC
= 18 V
HCPL-2730/0730
HCPL-2731/0731
= 1.6 mA
0.1
I
F
HCPL-2730
HCPL-2731
CC
R = 2.2 kΩ
L
0.01
0.001
V
= 7 V
T
A
= 25° C
1.1
1.2
1.3
1.4
1.5
1.6
0.01
0.1
1.0
10
0.1
I – INPUT DIODE FORWARD CURRENT – mA
F
1.0
10
100
V
– FORWARD VOLTAGE – V
T – INPUT PULSE PERIOD – ms
F
Figure 4. Input Diode Forward
Current vs. Forward Voltage.
Figure 5. Supply Current per
Channel vs. Input Diode Forward
Current.
Figure 6. Propagation Delay to Logic
Low vs. Pulse Period.
70
36
33
V
T
A
= 5 V
CC
= 25° C
HCPL-2731/0731
(I = 0.5 mA, R = 4.7 kΩ)
F
L
60
50
30
27
24
21
18
HCPL-2730/0730
(I = 1.6 mA, R = 2.2 kΩ)
F
L
t
R = 2.2 kΩ OR 4.7 kΩ
L
PHL
t
PHL
40
30
20
15
12
9
t
t
PLH
PLH
t
t
R
R
= 4.7 kΩ
= 2.2 kΩ
PLH
PLH
L
L
6
3
0
10
0
t
PHL
0
2
4
6
8
10
0
10 20 30 40 50 60 70 80 90
– TEMPERATURE – °C
T
I
– INPUT DIODE FORWARD CURRENT – mA
F
A
Figure 7. Propagation Delay vs.
Temperature.
Figure 8. Propagation Delay vs. Input
Diode Forward Current.
1-118
HP [ HEWLETT-PACKARD ]
