数据搜索系统,热门电子元器件搜索 |
|
NUP4304MR6 数据表(PDF) 4 Page - ON Semiconductor |
|
NUP4304MR6 数据表(HTML) 4 Page - ON Semiconductor |
4 / 6 page 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 (TSOP−6). 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 VCC 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 VCC 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 VCC If additional protection of the supply rail is desired, an external TVS diode may be added across VCC 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 VCC 10 k The NUP4304MR6 can be isolated from the power supply by connecting a series resistor between pin 2 and VCC. A 10 k W resistor is recommended for this application. This will maintain bias on the internal steering diodes, reducing their capacitance. |
类似零件编号 - NUP4304MR6 |
|
类似说明 - NUP4304MR6 |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |