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參數資料
| 型號： | 4N28 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Optocoupler |
| 中文描述： | 光耦合器 |
| 文件頁數： | 5/6頁 |
| 文件大?。?/td> | 411K |
| 代理商： | 4N28 |
Document Number: 83717
www.vishay.com
Revision 17-August-01
2–57
Figure 1. Forward Voltage vs. Forward Current
Figure 2. Normalized Non-saturated and Saturated
CTR, TA=25°C vs. LED Current
Figure 3. Normalized Non-saturated and Saturated
CTR, TA=50°C vs. LED Current
100
10
1
.1
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
IF - Forward Current - mA
V
F
-
Forward
Voltage
-
V
TA = –55°C
TA = 25°C
TA = 85°C
Normalized to:
0.0
0.5
1.0
1.5
0
1
10
100
IF - LED Current - mA
NCTR
NCTR(SAT)
NCTR
-
Normlized
CTR
CTRce(sat) Vce=0.4 V
Vce=10 V, IF=10 mA, TA=25
°C
TA=25
°C
100
10
1
.1
0.0
0.5
1.0
1.5
IF - LED Current - mA
NCTR
-
Normalized
CTR
Normalized to:
CTRce(sat) Vce=0.4 V
Vce=10 V, IF=10 mA, TA=25
°C
NCTR
NCTR(SAT)
TA=50
°C
Figure 4. Normalized Non-saturated and Saturated
CTR, TA=70°C vs. LED Current
Figure 5. Normalized Non-saturated and Saturated
CTR, TA=85°C vs. LED Current
Figure 6. Collector-emitter Current vs. Temperature
and LED Current
100
10
1
.1
0.0
0.5
1.0
1.5
IF - LED Current - mA
NCTR
-
Normalized
CTR
Normalized to:
CTRce(sat) Vce=0.4 V
Vce=10 V, IF=10 mA, TA=25
°C
NCTR
NCTR(SAT)
TA=70
°C
100
10
1
.1
0.0
0.5
1.0
1.5
IF - LED Current - mA
NCTR
-
Normalized
CTR
Normalized to:
CTRce(sat) Vce = 0.4 V
Vce=10 V, IF=10 mA, TA=25
°C
NCTR
NCTR(SAT)
TA=85
°C
60
50
40
30
20
10
0
5
10
15
20
25
30
35
50
°C
70
°C
85
°C
IF - LED Current - mA
Ice
-
Collector
Current
-
mA
25
°C
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