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參數(shù)資料
| 型號： | NUP4304MR6T1G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | Low Capacitance Diode Array for ESD Protection in Four Data Lines |
| 中文描述： | UNIDIRECTIONAL, 8 ELEMENT, SILICON, TVS DIODE |
| 封裝： | LEAD FREE, PLASTIC, CASE 318F-05, TSOP-6 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 78K |
| 代理商： | NUP4304MR6T1G |
NUP4304MR6
http://onsemi.com
4
APPLICATIONS INFORMATION
The NUP4304MR6 is a low capacitance 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 on high speed I/O data lines. The integrated
design of the NUP4304MR6 offers surge rated, low
capacitance steering diodes integrated in a single package
(TSOP6). If a transient condition occurs, the steering
diodes will drive the transient to the positive rail of the
power supply or to ground.
NUP4304MR6 Configuration Options
The NUP4304MR6 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 5. 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
inductance.
Option 1
Protection of four data lines 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 2 directly to the
positive supply rail (Vcc), the data lines are referenced to the
supply voltage. Biasing of the steering diodes reduces their
capacitance.
Option 2
Protection of four data lines and the supply rail using V
CC
as a reference and an external TVS diode.
I/O 1
I/O 2
I/O 3
I/O 4
6
5
4
1
2
3
V
CC
If additional protection of the supply rail is desired, an
external TVS diode may be added across V
CC
and ground.
This will prevent overvoltage conditions on the supply rail
protecting the supply and other circuits connected to it.
Option 3
Protection of four data lines with bias and power supply
isolation resistor.
I/O 1
I/O 2
I/O 3
I/O 4
6
5
4
1
2
3
V
CC
10 k
The NUP4304MR6 can be isolated from the power supply
by connecting a series resistor between pin 2 and V
CC
. A
10 k resistor is recommended for this application. This
will maintain bias on the internal steering diodes, reducing
their capacitance.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| NUP45V6P5 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Low Capacitance Quad Array for ESD Protection |
| NUP45V6P5_09 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Low Capacitance Quad Array for ESD Protection |
| NUP45V6P5T5G | 功能描述:TVS二極管陣列 5.6 V Quad 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 |
| NUP46V8P5 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Low Capacitance Quad Array for ESD Protection |
| NUP46V8P5T5G | 功能描述:TVS二極管陣列 HANA SEMI TH2 SOT953 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 |
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