- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361166 > NUP4202W1T2G (ON SEMICONDUCTOR) Low Capacitance SC−88 Diode−TVS Array for High Speed Data Lines Protection PDF資料下載
參數(shù)資料
| 型號(hào)： | NUP4202W1T2G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | Low Capacitance SC−88 Diode−TVS Array for High Speed Data Lines Protection |
| 中文描述： | 500 W, UNIDIRECTIONAL, SILICON, TVS DIODE |
| 封裝： | LEAD FREE, PLASTIC, CASE 419B-02, SC-88, 6 PIN |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大?。?/td> | 88K |
| 代理商： | NUP4202W1T2G |
NUP4202W1
http://onsemi.com
3
APPLICATIONS INFORMATION
The new NUP4202W1 is a low capacitance TVS diode
array designed to protect sensitive electronics such as
communications systems, computers, and computer
peripherals against damage due to ESD events or transient
overvoltage conditions. Because of its low capacitance, it
can be used in high speed I/O data lines. The integrated
design of the NUP4202W1 offers surge rated, low
capacitance steering diodes and a TVS diode integrated in a
single package (SC88). If a transient condition occurs, the
steering diodes will drive the transient to the positive rail of
the power supply or to ground. The TVS device protects the
power line against overvoltage conditions to avoid damage
to the power supply and any downstream components.
NUP4202W1 Configuration Options
The NUP4202W1 is able to protect up to four data lines
against transient overvoltage conditions by driving them to
a fixed reference point for clamping purposes. The steering
diodes will be forward biased whenever the voltage on the
protected line exceeds the reference voltage (Vf or Vcc+Vf).
The diodes will force the transient current to bypass the
sensitive circuit.
Data lines are connected at pins 1, 3, 4 and 6. The negative
reference is connected at pin 2. This pin must be connected
directly to ground by using a ground plane to minimize the
PCB’s ground inductance. It is very important to reduce the
PCB trace lengths as much as possible to minimize parasitic
inductances.
Option 1
Protection of four data lines and the power supply using
Vcc as reference.
6
5
4
1
2
3
I/O 1
I/O 2
I/O 3
I/O 4
V
CC
For this configuration, connect pin 5 directly to the
positive supply rail (Vcc), the data lines are referenced to the
supply voltage. The internal TVS diode prevents
overvoltage on the supply rail. Biasing of the steering diodes
reduces their capacitance.
Option 2
Protection of four data lines with bias and power supply
isolation resistor.
V
CC
10 k
6
5
4
1
2
3
I/O 1
I/O 2
I/O 3
I/O 4
The NUP4202W1 can be isolated from the power supply
by connecting a series resistor between pin 5 and Vcc. A
10 k resistor is recommended for this application. This
will maintain a bias on the internal TVS and steering diodes,
reducing their capacitance.
Option 3
Protection of four data lines using the internal TVS diode
as reference.
6
5
4
1
2
3
I/O 1
I/O 2
I/O 3
I/O 4
NC
In applications lacking a positive supply reference or
those cases in which a fully isolated power supply is
required, the internal TVS can be used as the reference. For
these applications, pin 5 is not connected. In this
configuration, the steering diodes will conduct whenever the
voltage on the protected line exceeds the working voltage of
the TVS plus one diode drop (Vc=Vf + V
TVS
).
ESD Protection of Power Supply Lines
When using diodes for data line protection, referencing to
a supply rail provides advantages. Biasing the diodes
reduces their capacitance and minimizes signal distortion.
Implementing this topology with discrete devices does have
disadvantages. This configuration is shown below:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NUP4304M6_06 | Low Capacitance Diode Array for ESD Protection in Four Data Lines |
| NUP4304MR6T1 | Low Capacitance Diode Array for ESD Protection in Four Data Lines |
| NUP4304MR6T1G | Low Capacitance Diode Array for ESD Protection in Four Data Lines |
| NUP4304MR6 | Low Capacitance Diode Array for ESD Protection in Four Data Lines(低電容二極管陣列ESD保護(hù)器) |
| NUP45V6P5 | Low Capacitance Quad Array for ESD Protection(ESD保護(hù)，低容抗方形陣列) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NUP4212UPMU | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Quad Transient Voltage Suppressor Array |
| NUP4212UPMUTAG | 功能描述:TVS二極管陣列 ULTR LO CAPACITANCE ESD PRTCT ARRAY 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 |
| NUP4301 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Low cap. diode array for 2 Line High Speed USB protection devic |
| NUP4301MR6T1 | 功能描述:整流器 Low Cap. for ESD RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復(fù)時(shí)間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel |
| NUP4301MR6T1/D | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Low Capacitance Diode Array for ESD Protection in Four Data Lines |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。