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參數(shù)資料
| 型號： | TISP7XXXF3 |
| 廠商： | Bourns Inc. |
| 英文描述： | MEDIUM & HIGH-VOLTAGE TRIPLE ELEMENT BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
| 中文描述： | 介質(zhì) |
| 文件頁數(shù)： | 15/19頁 |
| 文件大?。?/td> | 562K |
| 代理商： | TISP7XXXF3 |
MARCH 1994 - REVISED MARCH 2006
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
APPLICATIONS INFORMATION
ITU-T 10/700 Generator (continued)
Lightning Surge (continued)
TISP7xxxF3 (MV, HV) Overvoltage Protector Series
With the generator output open circuit, when SW closes, C1 discharges through R1. The decay time constant will be C1R1, or 20 x 50 =
1000
μ
s. For the 50 % voltage decay time, the time constant needs to be multiplied by 0.697, giving 0.697 x 1000 = 697
μ
s which is rounded to
700
μ
s.
The output rise time is controlled by the time constant of R2 and C2, which is 15 x 200 = 3000 ns or 3
μ
s. Virtual voltage rise times are given
by straight line extrapolation through the 30 % and 90 % points of the voltage waveform to zero and 100 %. Mathematically, this is equivalent to
3.24 times the time constant, which gives 3.24 x 3 = 9.73 which is rounded to 10
μ
s. Thus, the open circuit voltage rises in 10
μ
s and decays in
700
μ
s, giving the 10/700 generator its name.
When the overvoltage protector switches, it effectively shorts the generator output via the series 25
resistor. Two short circuit conditions
need to be considered: single output using R3 only (top circuit of Figure 33) and dual output using R3 and R4 (bottom circuit of Figure 33).
For the single test, the series combination of R2 and R3 (15 + 25 = 40
) is in shunt with R1. This lowers the discharge resistance from 50
to
22.2
, giving a discharge time constant of 444
μ
s and a 50% current decay time of 309.7
μ
s, which is rounded to 310
μ
s.
For the rise time, R2 and R3 are in parallel, reducing the effective source resistance from 15
to 9.38
, giving a time constant of 1.88
μ
s.
Virtual current rise times are given by straight line extrapolation through the 10 % and 90 % points of the current waveform to zero and 100 %.
Mathematically, this is equivalent to 2.75 times the time constant, which gives 2.75 x 1.88 = 5.15, which is rounded to 5
μ
s. Thus, the short
circuit current rises in 5
μ
s and decays in 310
μ
s, giving the 5/310 wave shape.
The series resistance from C1 to the output is 40
, giving an output conductance of 25 A/kV. For each 1 kV of capacitor charge voltage, 25 A
of output current will result.
For the dual test, the series combination of R2 plus R3 and R4 in parallel (15 + 12.5 = 27.5
) is in shunt with R1. This lowers the discharge
resistance from 50
to 17.7
, giving a discharge time constant of 355
μ
s and a 50% current decay time of 247
μ
s, which is rounded to
250
μ
s.
For the rise time, R2, R3 and R4 are in parallel, reducing the effective source resistance from 15
to 6.82
, giving a time constant of 1.36
μ
s,
which gives a current rise time of 2.75 x 1.36 = 3.75, which is rounded to 4
μ
s. Thus, the short circuit current rises in 4
μ
s and decays in 250
μ
s, giving the 4/250 wave shape.
Figure 33.
C
200 nF
R
1
50
C
1
20
μ
F
R
2
15
SW
V
2.8 kV
R
3
25
R
T
T
G
T
R
G
R
G
T AND G
TEST
R AND G
TEST
R AND T
TEST
70 A
5/310
70 A
5/310
10/700 GENERATOR - SINGLE TERMINAL PAIR TEST
C
200 nF
R
1
50
C
1
20
μ
F
R
2
15
SW
R
3
25
R
4
25
R
T
G
DUAL
T AND G,
R AND G
TEST
95 A
4/250
95 A
4/250
190 A
4/250
V
5.2 kV
10/700 GENERATOR - DUAL TERMINAL PAIR TEST
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TISP7XXXH3SL | 制造商:BOURNS 制造商全稱:Bourns Electronic Solutions 功能描述:TRIPLE ELEMENT BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
| TISP8200HDMR-S | 功能描述:SCR Buffered P-Gate SCR Dual RoHS:否 制造商:STMicroelectronics 最大轉(zhuǎn)折電流 IBO:480 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) RMS 電流 (It RMS): 正向電壓下降:1.6 V 柵觸發(fā)電壓 (Vgt):1.3 V 最大柵極峰值反向電壓:5 V 柵觸發(fā)電流 (Igt):35 mA 保持電流（Ih 最大值）:75 mA 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220 封裝:Tube |
| TISP8200MDR | 功能描述:SCR RoHS:否 制造商:STMicroelectronics 最大轉(zhuǎn)折電流 IBO:480 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) RMS 電流 (It RMS): 正向電壓下降:1.6 V 柵觸發(fā)電壓 (Vgt):1.3 V 最大柵極峰值反向電壓:5 V 柵觸發(fā)電流 (Igt):35 mA 保持電流（Ih 最大值）:75 mA 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220 封裝:Tube |
| TISP8200MDR-S | 功能描述:SCR PROTECTOR - BUFFERED P-GATE PROG. PROT. RoHS:否 制造商:STMicroelectronics 最大轉(zhuǎn)折電流 IBO:480 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) RMS 電流 (It RMS): 正向電壓下降:1.6 V 柵觸發(fā)電壓 (Vgt):1.3 V 最大柵極峰值反向電壓:5 V 柵觸發(fā)電流 (Igt):35 mA 保持電流（Ih 最大值）:75 mA 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220 封裝:Tube |
| TISP8201HDMR-S | 功能描述:SCR Buffered N-Gate SCR Dual RoHS:否 制造商:STMicroelectronics 最大轉(zhuǎn)折電流 IBO:480 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) RMS 電流 (It RMS): 正向電壓下降:1.6 V 柵觸發(fā)電壓 (Vgt):1.3 V 最大柵極峰值反向電壓:5 V 柵觸發(fā)電流 (Igt):35 mA 保持電流（Ih 最大值）:75 mA 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220 封裝:Tube |
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