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參數(shù)資料
| 型號： | SRV05-4ATCT |
| 元件分類： | TVS二極管 - 瞬態(tài)電壓抑制 |
| 英文描述： | 300 W, UNIDIRECTIONAL, SILICON, TVS DIODE |
| 封裝： | HALOGEN FREE AND ROHS COMPLIANT, PLASTIC PACKAGE-6 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大小： | 218K |
| 代理商： | SRV05-4ATCT |
8
2010 Semtech Corp.
www.semtech.com
PROTECTION PRODUCTS
SRV05-4A
Figure 7 - Digital Visual Interface (DVI) Protection
DVI Protection
The small geometry of a typical digital-visual interface
(DVI) graphic chip will make it more susceptible to
electrostatic discharges (ESD) and cable discharge
events (CDE). Transient protection of a DVI port can
be challenging. Digital-visual interfaces can often
transmit and receive at a rate equal to or above
1Gbps. The high-speed data transmission requires the
protection device to have low capacitance to maintain
signal integrity and low clamping voltage to reduce
stress on the protected IC. The SRV05-4A has a low
typical insertion loss of <0.4dB at 1GHz (I/O to ground)
to ensure signal integrity and can protect the DVI
interface to the 8kV contact and 15kV air ESD per IEC
61000-4-2 and CDE.
Figure 7 shows how to design the SRV05-4A into the
DVI circuit on a flat panel display and a PC graphic
card. The SRV05-4A is configured to provide common
mode and differential mode protection. The internal
TVS of the SRV05-4A acts as a 5 volt reference. The
power pin of the DVI circuit does not come out through
the connector and is not subjected to external ESD
pulse; therefore, pin 5 should be left unconnected.
Connecting pin 5 to Vcc of the DVI circuit may result in
damage to the chip from ESD current.
10/100 ETHERNET PROTECTION
Ethernet ICs are vulnerable to damage from electro-
static discharge (ESD).
The internal protection in the
PHY chip, if any, often is not enough due to the high
energy of the discharges specified by IEC 61000-4-2.
If the discharge is catastrophic, it will destroy the
protected IC. If it is less severe, it will cause latent
failures that are very difficult to find.
In a typical 10/100 system, the twisted-pair interface
for each port consists of two differential signal pairs:
one for the transmitter and one for the receiver, with
the transmitter input being the most sensitive to
damage. The fatal discharge occurs differentially
across the transmit or receive line pair and is capaci-
tively coupled through the transformer to the Ethernet
chip. Figure 8 shows how to design the SRV05-4A on
the line side of a 10/100 ethernet port to provide
differential mode protection. The common mode
isolation of the transformer will provide common mode
protection to the rating of the transformer isolation
which is usually >1.5kV. Figure 9 shows how to
implement the SRV05-4A on the IC side of the 10/
100 Ethernet circuit.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SRV05-4L-TP | UNIDIRECTIONAL, SILICON, TVS DIODE |
| SRX6548 | QUARTZ CRYSTAL RESONATOR, 13.248 MHz |
| SRX6549 | QUARTZ CRYSTAL RESONATOR, 12.96 MHz |
| SRX6575 | QUARTZ CRYSTAL RESONATOR, 10.24 MHz |
| SS-3GLPB | SNAP ACTING/LIMIT SWITCH, SPDT, MOMENTARY, 3A, 30VDC, 1mm, THROUGH HOLE-STRAIGHT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SRV05-4ATR | 功能描述:TVS DIODE 5VWM 17.5VC SOT23 制造商:smc diode solutions 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 類型:轉(zhuǎn)向裝置（軌至軌） 單向通道:- 雙向通道:4 電壓 - 反向關(guān)態(tài)（典型值）:5V（最大） 電壓 - 擊穿（最小值）:6V 電壓 - 箝位（最大值）@ Ipp:17.5V 電流 - 峰值脈沖（10/1000μs）:5A（8/20μs） 功率 - 峰值脈沖:- 電源線路保護:是 應(yīng)用:以太網(wǎng) 不同頻率時的電容:3.2pF @ 1MHz 工作溫度:-55°C ~ 125°C（TJ） 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商器件封裝:SOT-23-6 標準包裝:1 |
| SRV05-4HTG | 功能描述:TVS二極管陣列 6V 0.1uA 20kV ESD Contact RoHS:否 制造商:Littelfuse 極性: 通道:4 Channels 擊穿電壓: 鉗位電壓:11.5 V 工作電壓:2.5 V 峰值浪涌電流:20 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 系列: 最小工作溫度:- 40 C 最大工作溫度:+ 85 C |
| SRV05-4L | 制造商:MCC 制造商全稱:Micro Commercial Components 功能描述:5 Volts ESD Protection Device |
| SRV05-4L_13 | 制造商:MCC 制造商全稱:Micro Commercial Components 功能描述:5 Volts ESD Protection Device Low clamping voltage |
| SRV05-4LC | 制造商:PROTEC 制造商全稱:Protek Devices 功能描述:ultra low capacitance steering diode/tvs array |
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