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參數(shù)資料
| 型號： | PS2653L2 |
| 廠商： | NEC Corp. |
| 英文描述： | Optocoupler Applications |
| 中文描述： | 光耦應(yīng)用 |
| 文件頁數(shù)： | 20/38頁 |
| 文件大?。?/td> | 223K |
| 代理商： | PS2653L2 |
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19
A design example of an optocoupler circuit that operates for at least ten years is shown below (using Fig. 3-3, 4-2 and 4-3). The
major causes of CTR reduction area as follows:
(From Fig. 3-3)
CTR-relative-value vs. R
BE
characteristics
15% down (with respect to initial value, R
BE
=
×
)
(From Fig. 4-2)
CTR change with time (10 years, Ta = 60
°
C)
40% down (with respect to initial value, 0 year)
(From Fig. 4-3)
CTR-relative-value vs. ambient-temperature characteristics
(Ta = 60
°
C)
15% down (with respect to initial value t
a
= 25
°
C)
Considering the above characteristics and safety factor = 2 (twice margin), the recommended CTR is:
21.6 x 1.4 x 1.15 x 1.15 x 2 = 80%.................(15)
(Reference)
Accordingly, the CTR value including reduction of CTR by time elapse, temperature change, and insertion of R
BE
must be 21.6 %
or more.
I
F
= 5 mA
T
A
= 25
C
I
F
= 20 mA
T
A
= 25
C
I
F
= 5 mA
T
A
= 60
C
Normalized to CTR
test conditon
I
F
= 5 mA, V
CE
= 5V
10
1.2
1.0
0.8
0.6
0.4
0.2
0
0
10
10
10
2
3
4
5
Time (Hr)
Figure 4-2. Change of CTR with
Time (PS2601)
C
Ambient Temperature T
A
(
°
C)
Figure 4-3. CTR-Relative-Value vs.
T
A
Characteristics
C
Normalized to 100
at T
A
= 25
C
I
F
= 5 mA, V
CE
= 5 V
1.2
1.0
0.8
0.6
0.4
0.2
0
-55 -40
-20
20
40
60
80
100
0
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PDF描述 |
|---|---|
| PS2654L2 | Optocoupler Applications |
| PS2625 | HIGH ISOLATION VOLTAGE AC INPUT LARGE FORWARD AC INPUT TYPE 6 PIN PHOTOCOUPLER |
| PS2625L | HIGH ISOLATION VOLTAGE AC INPUT LARGE FORWARD AC INPUT TYPE 6 PIN PHOTOCOUPLER |
| PS2626 | HIGH ISOLATION VOLTAGE AC INPUT LARGE FORWARD AC INPUT TYPE 6 PIN PHOTOCOUPLER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PS2654 | 制造商:NEC 制造商全稱:NEC 功能描述:Optocoupler Applications |
| PS2654L2 | 制造商:NEC 制造商全稱:NEC 功能描述:Optocoupler Applications |
| PS2654-V | 功能描述:晶體管輸出光電耦合器 DISC BY CEL 3/01 DIP-6 1CH OPTOCPLR RoHS:否 制造商:Vishay Semiconductors 輸入類型:DC 最大集電極/發(fā)射極電壓:70 V 最大集電極/發(fā)射極飽和電壓:0.4 V 絕緣電壓:5300 Vrms 電流傳遞比:100 % to 200 % 最大正向二極管電壓:1.65 V 最大輸入二極管電流:60 mA 最大集電極電流:100 mA 最大功率耗散:100 mW 最大工作溫度:+ 110 C 最小工作溫度:- 55 C 封裝 / 箱體:DIP-4 封裝:Bulk |
| PS266528-01 | 功能描述:環(huán)形MIL規(guī)格后蓋 RoHS:否 制造商:Amphenol PCD MIL 類型:MIL-DTL-38999 III, IV 系列:AS85049 產(chǎn)品類型:Environmental EMI/RFI Backshells 外殼類型:Straight 外殼大小:18 外殼材質(zhì):Aluminum Alloy |
| PS266528-51.5.290 | 功能描述:環(huán)形MIL規(guī)格后蓋 RoHS:否 制造商:Amphenol PCD MIL 類型:MIL-DTL-38999 III, IV 系列:AS85049 產(chǎn)品類型:Environmental EMI/RFI Backshells 外殼類型:Straight 外殼大小:18 外殼材質(zhì):Aluminum Alloy |
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