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參數(shù)資料
| 型號： | ACST8-8CG |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | OVER VOLTAGE PROTECTED AC POWER SWITCH |
| 中文描述： | 過壓保護(hù)AC電源開關(guān) |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 126K |
| 代理商： | ACST8-8CG |
ACST8
4/10
Figure 2: Typical Application Diagram
2. ROBUSTNESS AGAINST FAST CAPACITOR DISCHARGE
When parasitic transients or controller mis-operation occur, the blocked switch may turn on by spurious
switch firing. Since the phase shift capacitor is charged, its energy is instantaneously dissipated through
the two ACSTs which can be destroyed. To prevent such a failure, a resistive inductive circuit R-L is added
in series with the phase shift capacitor.
The dI/dt depends on the maximal voltage V
max
of the phase shift capacitor (700V on 240V mains appli-
cations), and on the inductance L:
v
L
The total switch turn on di/dt is the sum of the di/dt created by any RC noise suppressor discharge and
the dI/dt created by the motor capacitor discharge.
Since the maximal dI/dt capability at turn-on of the ACST8 is 100A/μs, the motor capacitor di/dt is assumed
to be less than 50A/μs; therefore, the inductance should be 14μH.
The resistor R limits the surge current through the ACST8 during the capacitor discharge according to the
specified curve I
TSM
= f (tp) as shown in figure 11 (to be issued), and 1.2
is low enough to limit the resistor
dissipation (usually less than 1 W).
Finally both the 14μH inductance and the 1.2
resistance provide a safety margin of two on the surge cur-
rent I
TSM
described in figure 11.
CONTROL
UNIT
COM
OUT
G
dt
----
----------
=
C
L
VAC
T1
ON
T2
R
700V
M
Fast capacitor discharge when
one ACST switch turns on (T2)
and the motor runs (T1 ON).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ACST8-8CG-TR | OVER VOLTAGE PROTECTED AC POWER SWITCH |
| ACST8-8CT | OVER VOLTAGE PROTECTED AC POWER SWITCH |
| ACST8 | OVER VOLTAGE PROTECTED AC POWER SWITCH |
| ACT-5231PC-133F22T | Circular Connector; MIL SPEC:MIL-DTL-38999 Series II; Body Material:Metal; Series:JT; No. of Contacts:22; Connector Shell Size:12; Connecting Termination:Crimp; Circular Shell Style:Box Mount Receptacle; Body Style:Straight RoHS Compliant: No |
| ACT-5231PC-150F22C | Circular Connector; No. of Contacts:22; Series:JTP02R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Socket; Circular Shell Style:Box Mount Receptacle |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ACST8-8CG-TR | 功能描述:雙向可控硅 8A 800V AC Power Sw RoHS:否 制造商:STMicroelectronics 開啟狀態(tài) RMS 電流 (It RMS):16 A 不重復(fù)通態(tài)電流:120 A 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:600 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）:5 uA 開啟狀態(tài)電壓: 保持電流（Ih 最大值）:45 mA 柵觸發(fā)電壓 (Vgt):1.3 V 柵觸發(fā)電流 (Igt):1.75 mA 最大工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220AB |
| ACST8-8CT | 功能描述:雙向可控硅 RECTIFIER RoHS:否 制造商:STMicroelectronics 開啟狀態(tài) RMS 電流 (It RMS):16 A 不重復(fù)通態(tài)電流:120 A 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:600 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）:5 uA 開啟狀態(tài)電壓: 保持電流（Ih 最大值）:45 mA 柵觸發(fā)電壓 (Vgt):1.3 V 柵觸發(fā)電流 (Igt):1.75 mA 最大工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220AB |
| ACT | 制造商:ABRACON 制造商全稱:Abracon Corporation 功能描述:CRYSTAL CLOCK OSCILLATORS |
| ACT GOLD-PLUS | 制造商:ACT METERS 功能描述:BATTERY TESTER INTELLIGENT 制造商:ACT METERS 功能描述:BATTERY TESTER, LEAD ACID, 6V, 60V 制造商:Distributed By MCM 功能描述:Intelligent Battery Tester for 6 or 12 Volt Lead Acid Batteries 制造商:ACT METERS 功能描述:TESTER, BATTERY, LEAD ACID, 5V TO 15V; Battery Technologies Supported:Lead Acid; DC Voltage Range Accuracy: 2%; External Height:210mm; External Width:110mm; External Depth:41mm ;RoHS Compliant: NA |
| ACT_2X6_3X8 | 制造商:ACT 制造商全稱:Advanced Crystal Technology 功能描述:ACT 2x6 & 3x8 Watch Crystal |
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