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參數(shù)資料
| 型號(hào)： | TISP4240H3BJ |
| 廠商： | Power Innovations International, Inc. |
| 英文描述： | BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
| 中文描述： | 雙向可控硅過(guò)電壓保護(hù)器 |
| 文件頁(yè)數(shù)： | 9/14頁(yè) |
| 文件大?。?/td> | 312K |
| 代理商： | TISP4240H3BJ |
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9
NOVEMBER 1997 - REVISED MARCH 1999
TISP4070H3BJ THRU TISP4095H3BJ, TISP4125H3BJ THRU TISP4200H3BJ,
TISP4240H3BJ THRU TISP4400H3BJ
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
P R O D U C T I N F O R M A T I O N
a.c. power testing
The protector can withstand currents applied for times not exceeding those shown in Figure 8. Currents that
exceed these times must be terminated or reduced to avoid protector failure. Fuses, PTC (Positive
Temperature Coefficient) resistors and fusible resistors are overcurrent protection devices which can be used
to reduce the current flow. Protective fuses may range from a few hundred milliamperes to one ampere. In
some cases it may be necessary to add some extra series resistance to prevent the fuse opening during
impulse testing. The current versus time characteristic of the overcurrent protector must be below the line
shown in Figure 8. In some cases there may be a further time limit imposed by the test standard (e.g. UL
1459 wiring simulator failure).
capacitance
The protector characteristic off-state capacitance values are given for d.c. bias voltage, V
D
, values of 0, -1 V,
-2 V and -50 V. Where possible values are also given for -100 V. Values for other voltages may be calculated
by multiplying the V
D
= 0 capacitance value by the factor given in Figure 6. Up to 10 MHz the capacitance is
essentially independent of frequency. Above 10 MHz the effective capacitance is strongly dependent on
connection inductance. In many applications, such as Figure 15 and Figure 17, the typical conductor bias
voltages will be about -2 V and -50 V. Figure 7 shows the differential (line unbalance) capacitance caused by
biasing one protector at -2 V and the other at -50 V.
normal system voltage levels
The protector should not clip or limit the voltages that occur in normal system operation. For unusual
conditions, such as ringing without the line connected, some degree of clipping is permissible. Under this
condition about 10 V of clipping is normally possible without activating the ring trip circuit.
Figure 10 allows the calculation of the protector V
DRM
value at temperatures below 25 °C. The calculated
value should not be less than the maximum normal system voltages. The TISP4265H3BJ, with a V
DRM
of
200 V, can be used for the protection of ring generators producing 100 V rms of ring on a battery voltage of
-58 V (Th2 and Th3 in Figure 17). The peak ring voltage will be 58 + 1.414*100 = 199.4 V. However, this is the
open circuit voltage and the connection of the line and its equipment will reduce the peak voltage. In the
extreme case of an unconnected line, clipping the peak voltage to 190 V should not activate the ring trip. This
level of clipping would occur at the temperature when the V
DRM
has reduced to 190/200 = 0.95 of its 25 °C
value. Figure 10 shows that this condition will occur at an ambient temperature of -22 °C. In this example, the
TISP4265H3BJ will allow normal equipment operation provided that the minimum expected ambient
temperature does not fall below -22 °C.
JESD51 thermal measurement method
To standardise thermal measurements, the EIA (Electronic Industries Alliance) has created the JESD51
standard. Part 2 of the standard (JESD51-2, 1995) describes the test environment. This is a 0.0283 m
3
(1 ft
3
)
cube which contains the test PCB (Printed Circuit Board) horizontally mounted at the centre. Part 3 of the
standard (JESD51-3, 1996) defines two test PCBs for surface mount components; one for packages smaller
than 27 mm on a side and the other for packages up to 48 mm. The SMBJ measurements used the smaller
76.2 mm x 114.3 mm (3.0 “ x 4.5 “) PCB. The JESD51-3 PCBs are designed to have low effective thermal
conductivity (high thermal resistance) and represent a worse case condition. The PCBs used in the majority
of applications will achieve lower values of thermal resistance and so can dissipate higher power levels than
indicated by the JESD51 values.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TISP4400H3BJ | BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
| TISP4070H3LM | BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
| TISP4240H3LM | BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
| TISP4400H3LM | BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
| TISP4095H3BJ | BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TISP4240H3BJR | 功能描述:硅對(duì)稱二端開(kāi)關(guān)元件 RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開(kāi)啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
| TISP4240H3BJRS | 功能描述:SURGE SUPP 180V BIDIR DO-214AA RoHS:否 類(lèi)別:過(guò)電壓，電流，溫度裝置 >> TVS - 晶閘管 系列:- 產(chǎn)品變化通告:Product Discontinuation 19/Jul/2012 標(biāo)準(zhǔn)包裝:2,500 系列:- 電壓 - 擊穿:400V 電壓 - 斷路:320V 電壓 - 導(dǎo)通狀態(tài):4V 電流 - 峰值脈沖(8 x 20µs):250A 電流 - 峰值脈沖(10 x 1000µs):80A 電流 - 保持 (Ih):150mA 元件數(shù):1 電容:29pF 封裝/外殼:DO-214AA，SMB 包裝:帶卷 (TR) |
| TISP4240H3BJR-S | 功能描述:硅對(duì)稱二端開(kāi)關(guān)元件 PROTECTOR - SINGLE BIDIRECTIONAL RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開(kāi)啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
| TISP4240H3LM | 功能描述:硅對(duì)稱二端開(kāi)關(guān)元件 RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開(kāi)啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
| TISP4240H3LMFR | 功能描述:硅對(duì)稱二端開(kāi)關(guān)元件 RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開(kāi)啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
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