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TPD2E007DCKR Folha de dados(PDF) 7 Page - Texas Instruments

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Nome de Peças TPD2E007DCKR
Descrição Electrónicos  2-Channel ESD-Protection Array for AC-Coupled/Negative-Rail Data Interfaces
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

TPD2E007DCKR Folha de dados(HTML) 7 Page - Texas Instruments

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1
2
3
GND
TPD2E007
TXd
RXd
GND
7
TPD2E007
www.ti.com
SLVS796H – SEPTEMBER 2008 – REVISED JANUARY 2016
Product Folder Links: TPD2E007
Submit Documentation Feedback
Copyright © 2008–2016, Texas Instruments Incorporated
8 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
TPD2E007 is a diode type TVS which is typically used to provide a path to ground for dissipating ESD events on
signal lines between a human interface connector and a system. As the current from ESD passes through the
TVS, only a small voltage drop is present across the diode. This is the voltage presented to the protected IC.
8.2 Typical Application
Figure 6. Example Schematic
8.2.1 Design Requirements
For this design example, a single TPD2E007 is used to protect an RS232 3-wire connector.
Given the application, the following parameters are known.
Table 1. Design Parameters
DESIGN PARAMETER
VALUE
Signal range on all pins except GND
–12 V to 12V
Surge Withstand - IEC 61000-4-5
150 W
8.2.2 Detailed Design Procedure
To begin the design process, some parameters must be decided upon; the designer needs to know the following:
Signal voltage range on all protected lines
Surge Withstand
8.2.2.1 Signal Range on IO1 and IO2 Pins
The TPD2E007 has 2 IO pins which can support up to ±13 V.
8.2.2.2 Surge Withstand
The TPD2E007 can withstand up to 170W of IEC 61000-4-5 8/20-µs surge.


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