OUTPUT POWER – P
S
, INPUT CURRENT – I
S
OUTPUT POWER – P
S
, INPUT CURRENT – I
S
800
700
600
500
400
300
(230)
200
100
0
0
25
HCPL-4506 OPTION 060
P
S
(mW)
I
S
(mA)
1000
900
800
700
600
500
400
300
200
100
0
0
25
50
HCNW4506
P
S
(mW)
I
S
(mA)
C
LEDP
1
20 kΩ
8
2
7
3
C
LEDN
6
4
SHIELD
5
50
75 100 125 150 175 200
75
100 125 150 175
T
S
– CASE TEMPERATURE – °C
T
S
– CASE TEMPERATURE – °C
Figure 18. Thermal Derating Curve, Dependence of Safety Limiting Value with
Case Temperature per VDE 0884.
Figure 20. Optocoupler Input to
Output Capacitance Model for
Unshielded Optocouplers.
1
1
20 kΩ
+5 V
310
Ω
CMOS
8
C
LEDP
20 kΩ
C
LED02
C
LED01
8
0.1 µF
20 kΩ
+
– V
CC
= 15 V
2
7
2
7
3
C
LEDN
6
3
6
V
OUT
100 pF
4
SHIELD
5
4
SHIELD
5
*100 pF TOTAL
CAPACITANCE
Figure 19. Recommended LED Drive Circuit.
Figure 21. Optocoupler Input to
Output Capacitance Model for
Shielded Optocouplers.
1
I
TOTAL*
I
CLEDP
8
20
kΩ
C
LED02
C
LED01
20 kΩ
1
+5 V
8
20 kΩ
0.1 µF
20 kΩ
+
– V
CC
= 15 V
310
Ω
2
I
F
C
LEDP
7
V
OUT
100 pF
I
CLED01
3
C
LEDN
6
310
Ω
2
7
4
5
SHIELD
3
CMOS
6
V
OUT
100 pF
* THE ARROWS INDICATE THE DIRECTION OF CURRENT
FLOW FOR +dV
CM
/dt TRANSIENTS.
SHIELD
*100 pF TOTAL
CAPACITANCE
V
CM
Figure 22. LED Drive Circuit with Resistor Connected to LED
Anode (Not Recommended).
Figure 23. AC Equivalent Circuit for Figure 22 During
Common Mode Transients.
–
4
5
+
1-59
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
