HCPL-3700 AC/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)
4681012 14 16 18 20
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
Fig. 2 Input Current vs. Input Voltage
V
IN
- INPUT VOLTAGE (V)
02468101214
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) - VOLTAGE 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
- PROPAGATION DELAY (
µs)
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 (
µs)
T
f
- FALL TIME (
µs)
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
