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參數資料
| 型號： | 4N28 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Industry Standard Single Channel 6 Pin DIP Optocoupler |
| 中文描述： | 行業標準單頻道6引腳DIP光電耦合器 |
| 文件頁數： | 6/6頁 |
| 文件大小： | 411K |
| 代理商： | 4N28 |
Document Number: 83717
www.vishay.com
Revision 17-August-01
2–58
Figure 7. Collector-emitter Leakage Current vs. Temp.
Figure 8. Normalized CTRcb vs. LED Current and Temp.
Figure 9. Normalized Photocurrent vs. IF and Temp.
100
80
60
40
20
0
–20
10
–2
–1
0
1
2
3
4
5
TA - Ambient Temperature - °C
Iceo
-
Collector-Emitter
-
nA
Typical
Vce = 10 V
Normalized to:
0.0
0.5
1.0
1.5
25
°C
50
°C
70
°C
IF - LED Current - mA
NCTRcb
-
Normalized
CTRcb
.1
1
10
100
Vcb=9.3 V, IF=10 mA, TA=25
°C
Normalized to:
0.01
0.1
1
10
IF - LED Current - mA
Normalized
Photocurrent
.1
1
10
100
IF=10 mA, TA=25
°C
Nib, TA=–20
°C
Nib, TA=25
°C
Nib, TA= 50
°C
Nib, TA=70
°C
Figure 10. Normalized Non-saturated HFE vs. Base
Current and Temperature
Figure 11. Normalized HFE vs. Base Current and Temp.
Figure 12. Propagation Delay vs. Collector Load Resistor
Normalized to:
0.4
0.6
0.8
1.0
1.2
Ib - Base Current -
A
1
10
100
1000
Ib=20
A, Vce=10 V, TA=25°C
25
°C
50
°C
70
°C
–20
°C
NHFE
-
Normalized
HFE
0.0
0.5
1.0
1.5
25
°C
–20
°C
50
°C
70
°C
NHFE(sat)
-
Normalized
Saturated
HFE
1
10
100
1000
Vce=10 V, Ib=20
A
TA=25
°C
Vce=0.4 V
Ib - Base Current -
A
Normalized to:
1
10
100
1000
RL - Collector Load Resistor - k
t PLH
-
Propagation
Delay
-
s
2.5
2.0
1.5
1.0
t PHL
-
Propagation
Delay
-
s
.1
1
10
100
IF=10 mA, TA=25
°C
VCC=5.0 V, Vth=1.5 V
tPLH
tPHL
Figure 13. Switching Timing
I
F
tR
=1.5 V
V
O
tD
tS
tF
tPHL
tPLH
VTH
Figure 14. Switching Schematic
VCC = 5.0 V
F=10 KHz,
DF=50%
R L
VO
IF=10 mA
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