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參數(shù)資料
| 型號(hào)： | HCPL-3120 |
| 英文描述： | 2.0 Amp Output Current IGBT Gate Drive Optocoupler(2.0 Amp 輸出電流 IGBT門驅(qū)動(dòng)耦合器) |
| 中文描述： | 2.0安培輸出電流IGBT柵極驅(qū)動(dòng)光電耦合器（2.0安培輸出電流IGBT的門驅(qū)動(dòng)耦合器） |
| 文件頁數(shù)： | 20/24頁 |
| 文件大小： | 310K |
| 代理商： | HCPL-3120 |
20
LED Drive Circuit
Considerations for Ultra
High CMR Performance.
(Discussion applies to HCPL-
3120, HCPL-J312, and
HCNW3120)
Without a detector shield, the
dominant cause of optocoupler
CMR failure is capacitive
coupling from the input side of
the optocoupler, through the
package, to the detector IC as
shown in Figure 29. The HCPL-
3120 improves CMR performance
by using a detector IC with an
optically transparent Faraday
shield, which diverts the capaci-
tively coupled current away from
the sensitive IC circuitry. How-
ever, this shield does not
eliminate the capacitive coupling
between the LED and optocoup-
ler pins 5-8 as shown in
Figure 30. This capacitive
coupling causes perturbations in
the LED current during common
mode transients and becomes the
major source of CMR failures for
Figure 29. Optocoupler Input to Output
Capacitance Model for Unshielded Optocouplers.
Figure 30. Optocoupler Input to Output
Capacitance Model for Shielded Optocouplers.
1
3
2
4
8
6
7
5
C
LEDP
C
LEDN
1
3
2
4
8
6
7
5
C
LEDP
C
LEDN
SHIELD
C
LEDO1
C
LEDO2
a shielded optocoupler. The main
design objective of a high CMR
LED drive circuit becomes
keeping the LED in the proper
state (on or off) during common
mode transients. For example,
the recommended application
circuit (Figure 25), can achieve
15 kV/
μ
s CMR while minimizing
component complexity.
Techniques to keep the LED in
the proper state are discussed in
the next two sections.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCPL0201 | Receptacle With No Tail |
| HCPL0211 | LOGIC-GATE-OUTPUT OPTOCOUPLER |
| HCPL1730 | Optoelectronic |
| HCPL1731 | Optoelectronic |
| HCPL1930 | TRANSISTOR-STAGE-OUTPUT OPTOCOUPLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCPL-3120#060 | 功能描述:邏輯輸出光電耦合器 2.0A IGBT Gate Drive RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時(shí)間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
| HCPL-3120#300 | 功能描述:邏輯輸出光電耦合器 2.0A IGBT Gate Drive RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時(shí)間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
| HCPL-3120#360 | 功能描述:邏輯輸出光電耦合器 2.0A IGBT Gate Drive RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時(shí)間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
| HCPL-3120#500 | 功能描述:邏輯輸出光電耦合器 2.0A IGBT Gate Drive RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時(shí)間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
| HCPL-3120#560 | 功能描述:邏輯輸出光電耦合器 2.0A IGBT Gate Drive RoHS:否 制造商:Fairchild Semiconductor 絕緣電壓:4243 Vrms 輸出類型:Push-Pull 最大傳播延遲時(shí)間:500 ns 最大正向二極管電壓: 最大反向二極管電壓: 最大正向二極管電流: 最大連續(xù)輸出電流:2.5 A 最大功率耗散:100 mW 最大工作溫度:+ 100 C 最小工作溫度:- 40 C 封裝 / 箱體:SO-16 封裝:Tube |
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