Datasheet 搜索 > 二极管 > TI（德州仪器） > TPD1E04U04DPLR 数据手册 > TPD1E04U04DPLR 开发手册 1/7 页
￥ 1.166
TPD1E04U04DPLR 开发手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
二极管
封装:
X2SON-2
描述:
适用于 HDMI 2.0 和 USB 3.0、具有低动态电阻的单通道 ESD 保护二极管 2-X2SON -40 to 125
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
应用领域在P7
导航目录
TPD1E04U04DPLR数据手册
Page:
of 7 Go
若手册格式错乱，请下载阅览PDF原文件
1
SLVA785–June 2016
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
Picking ESD Diodes for Ultra High-Speed Data Lines
Application Report
SLVA785–June 2016
Picking ESD Diodes for Ultra High-Speed Data Lines
Will Zhou, Jeff Skarzynski
ABSTRACT
This application report addresses three key criteria for selecting an ESD device for protecting high-speed
signals. As the industry continues to trend towards smaller chipset features sizes to address higher speed
data rates, tolerance of transient voltages has continued to shrink as well. Picking the right ESD device
the first time is critical to preventing costly board re-spins during EMC testing. By using the three
techniques discussed in this paper, device selection can be greatly simplified and streamlined.
Contents
1 Introduction ................................................................................................................... 1
2 TLP Analysis ................................................................................................................. 1
3 Eye Diagram Analysis....................................................................................................... 4
4 Layout Considerations ...................................................................................................... 5
5 Conclusion.................................................................................................................... 5
6 References ................................................................................................................... 6
List of Figures
1 TLP Measurement Example................................................................................................ 2
2 Example IC TLP Results.................................................................................................... 3
3 Example IC TLP Results with TPD1E04U04 Superimposed .......................................................... 3
4 USB 3.1 Gen 2 10-Gbps Eye Diagram (Bare Board)................................................................... 4
5 USB 3.1 Gen 2 10-Gbps Eye Diagram (with TPD1E01B04)........................................................... 4
6 Example Layout with 4-Channel Routing Inefficiencies ................................................................ 5
1 Introduction
When designing a system to support high speed interfaces such as USB 3.1 Gen 2, HDMI 2.0,
DisplayPort 1.3, or Thunderbolt, a designer must take into account the entire system in order to meet all
end customer requirements. When selecting a TVS diode device, two important criteria come into account:
does this device’s added capacitance still allow my signals to pass cleanly, and does this device provide
the necessary protection from transient events such as ESD? This paper discusses three techniques that
can be applied to satisfy the two main TVS diode requirements. Those techniques are:
• TLP analysis – to understand the system breaking point, and the right device to protect it
• Eye diagram analysis – to show what effect a TVS diode has on the system eye diagram
• Layout considerations – best practices that can improve ESD performance and signal integrity
2 TLP Analysis
The TLP (Transmission Line Pulse) test is an efficient way to characterize a protection structure’s
performance during ESD events. Since TLP has a similar transient duration as IEC 61000-4-2 ESD events
and regular waveform shapes, it is common to use this test for assessing how well an ESD device clamps
during the IEC strikes. The lower voltage a TLP curve shows for a certain current level, the better it
clamps for ESD, which provides more protection for the sensitive ICs behind it.
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
