HCPL-3700 A
C/DC to Logic Interface Optocoupler
©2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
HCPL-3700 Rev. 1.0.1
5
Typical Performance Curves
Fig. 1 Logic Low Supply Current vs. Operating Supply Voltage
V
CC
- OPERATING SUPPLY VOLTAGE (V)
4
6
8
10
12
14
16
18
20
I
CCL
- LOGIC LO
W SUPPL
Y CURRENT (mA)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Fig. 2 Input Current vs. Input Voltage
V
IN
- INPUT VOLTAGE (V)
0
2
4
6
8
10
12
14
I
IN
- INPUT
CURRENT (
mA)
-10
-5
0
5
10
15
20
25
30
35
40
45
50
DC (Pins 1,2 shorted together
pins 3,4 shorted together)
DC (Pins 1 & 4 Open)
AC (pins 2 & 3 Open)
Fig. 3 Input Current/Low Level Output Voltage
vs. Temperature
T
A
- TEMPERATURE (°C)
-40
-20
0
25
45
65
85
Input Current, I
IN
(mA)
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
V
OL
(mV)
0
10
20
30
40
50
60
70
80
90
100
110
120
Fig. 4 Current Threshold/Voltage Threshold
vs. Temperature
T
A
- TEMPERATURE (°C)
-40
-20
0
25
45
65
85
I
TH
(DC) - CURRENT
THRESHOLD (mA)
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
V
TH
(DC) -
V
O
LT
A
G
E
THRESHOLD (V)
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
V
TH
+
I
TH
+
V
TH
-
I
TH
-
I
IN
V
IN
= 5.0 V
(PINS 2 and 3)
V
CC
= 5.0 V
V
OL
V
= 5.0 V
I
OL
= 4.2 mA
CC
Fig. 5 Propagation Delay vs. Temperature
T
A
- TEMPERATURE (°C)
-60
-40
-20
0
20
40
60
80
100
T
P
- PR
OP
A
G
A
TION DELA
Y (
µ
s)
0
10
20
30
40
50
60
70
TPLH
TPHL
Fig. 6 Rise and Fall Time vs. Temperature
T
A
- TEMPERATURE (°C)
-40
-20
0
25
45
65
85
T
r - RISE
TIME (
µ
s)
T
f - F
ALL
TIME (
µ
s)
0
10
20
30
40
50
60
70
80
90
100
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Tf
Tr
