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參數(shù)資料
| 型號(hào)： | PS2605 |
| 廠商： | NEC Corp. |
| 英文描述： | Optocoupler Applications |
| 中文描述： | 光耦應(yīng)用 |
| 文件頁數(shù)： | 37/38頁 |
| 文件大?。?/td> | 223K |
| 代理商： | PS2605 |
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36
Example 3: Sequencer circuit input section
AC 100 V
PS2505-2
Common
Common
PS2501-2
AC 100V
(a) AC input compatible optocoupler
(bidirectional input)
(b) Conventional optocoupler
(one-direction input)
(Full-wave rectified by diode bridge)
PRECAUTIONS FOR DESIGN
The AC input compatible optocoupler is identical to the conventional optocoupler except for the presence of two LEDs connected
in reverse parallel in the input circuit. Therefore, the circuit configuration can be designed as conventionally. The difference is
that there are two types of current transfer ratios (CRT) because two LEDs are connected in the input circuit. The two CTRs are
not necessarily the same, owing to the differences in light emission and coupling efficiencies of LEDs. Consequently, this causes
deviation in output signal level. The differences are rated under the item of the current efficiency ratio (CTR
1
/CTR
2
) for electric
characteristics.
Current transfer ratio (CTR
1
/CTR
2
)
I
C1
CTR
1
=
I
F1
x (current flowing in LED1)
I
C2
CTR
2
=
I
F2
x (current flowing in LED2)
A
I
F1
A
A
I
F2
LED 2
LED 1
I
C1
I
C2
V
CE
= 5 V
Figure 5. CTR Measuring Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PS2605L | Optocoupler Applications |
| PS2606 | Optocoupler Applications |
| PS2606L | Optocoupler Applications |
| PS2607 | Optocoupler Applications |
| PS2607L | Optocoupler Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PS2605L | 制造商:NEC 制造商全稱:NEC 功能描述:Optocoupler Applications |
| PS2606 | 制造商:NEC 制造商全稱:NEC 功能描述:Optocoupler Applications |
| PS2606L | 制造商:NEC 制造商全稱:NEC 功能描述:Optocoupler Applications |
| PS2607 | 制造商:California Eastern Laboratories (CEL) 功能描述:6pin DIP,Darlington Tr, AC, Base, Coupler |
| PS2607L | 功能描述:晶體管輸出光電耦合器 DISC BY CEL 4/01 SO-6 PHOTOCOUPLER 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 |
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