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TPD2E007YFMTG4 데이터시트(PDF) 7 Page - Texas Instruments |
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TPD2E007YFMTG4 데이터시트(HTML) 7 Page - Texas Instruments |
7 / 16 page 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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