Datasheet
Figure 7. Propagation delay vs. temperature. Figure 8. Propagation delay vs. input diode forward
current.
Figure 6. Propagation delay to logic low vs. pulse
period.
Figure 4. Input diode forward current vs. forward
voltage.
Figure 5. Supply current per channel vs. input
diode forward current.
Figure 1. DC transfer characteristics. Figure 2. Current transfer ratio vs. forward current. Figure 3. Output current vs. input diode forward
current.
HCPL-2730 fig 1
0 1 2
V
O
– OUTPUT VOLTAGE – V
I
O
– OUTPUT CURRENT – mA
60
30
0
I
F
= 5.0 mA
I
F
= 4.5 mA
I
F
= 4.0 mA
I
F
= 3.5 mA
I
F
= 1.0 m
A
T
A
= 25° C
V
CC
= 5.0 V
I
F
= 0.5 mA
I
F
= 1.5 m
A
I
F
= 2.0 m
A
I
F
= 2.5 mA
I
F
= 3.0 mA
HCPL-2730 fig 2
I
F
– FORWARD CURRENT – mA
2500
2000
1000
500
0.1 1.0
CTR – CURRENT TRANSFER RATIO – %
10
1500
0
V
CC
= 5.0 V
V
O
= 0.4 V
T
A
= 25° C
T
A
= 0° C
T
A
= 70° C
T
A
= 85° C
T
A
= -40° C
HCPL-2730 fig 3
I
F
– INPUT DIODE FORWARD CURRENT – mA
100
10
0.1
0.1 1 10
I
O
– OUTPUT CURRENT – mA
1.0
T
A
= 85° C
T
A
= 25° C
T
A
= -40° C
V
CC
= 5.0 V
V
O
= 0.4 V
HCPL-2730 fig 8
I
F
– INPUT DIODE FORWARD CURRENT – mA
50
40
20
10
0 2 4 6
t
P
– PROPAGATION DELAY – µs
108
30
0
60
V
CC
= 5 V
T
A
= 25° C
70
t
PHL
R
L
= 2.2 k OR 4.7 k
t
PLH
R
L
= 4.7 k
t
PLH
R
L
= 2.2 k
HCPL-2730 fig 4
V
F
– FORWARD VOLTAGE – V
100
10
0.1
0.01
1.1 1.2 1.3 1.4
I
F
– FORWARD CURRENT – mA
1.61.5
1.0
0.001
1000
I
F
T = 25°C
A
–
V
F
+
HCPL-2730 fig 5
I
F
– INPUT DIODE FORWARD CURRENT – mA
100
10
0.1 1.0
I
CC
(PER CHANNEL) – SUPPLY CURRENT – mA
10
1.0
T
A
= 25° C
100
0.1
HCPL-2731
V
CC
= 18 V
HCPL-2730
HCPL-2731
V
CC
= 7 V
HCPL-2730 fig 6
T – INPUT PULSE PERIOD – ms
100
10
0.01 0.1
t
PHL
– PROPAGATION DELAY
TO LOGIC LOW – µs
1.0
1.0
T
A
= 25° C
10
0.1
HCPL-2731/0731
I
F
= 0.5 mA
R
L
= 4.7 k
HCPL-2730/0730
HCPL-2731/0731
I
F
= 1.6 mA
R
L
= 2.2 k
0
V
O
I
F
V
OL
t
PHL
T
50 µs
1.5 V
5 V
12