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TPD2E001DRSR 数据表(PDF) 7 Page - Texas Instruments

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部件名 TPD2E001DRSR
功能描述  Low-Capacitance 2-Channel ESD-Protection for High-Speed Data Interfaces
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TPD2E001DRSR 数据表(HTML) 7 Page - Texas Instruments

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0.1 µF
USB
Controller
R
T
R
T
V
BUS
D+
D–
GND
GND
IO2
D1
IO1
V
CC
7
TPD2E001
www.ti.com
SLLS684I – JULY 2006 – REVISED MARCH 2016
Product Folder Links: TPD2E001
Submit Documentation Feedback
Copyright © 2006–2016, 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
TPD2E001 is a diode array type Transient Voltage Suppressor (TVS) which is typically used to provide a path to
ground for dissipating ESD events on hi-speed 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. The low RDYN of the triggered TVS holds this voltage, VCLAMP, to a
tolerable level to the protected IC.
8.2 Typical Application
Figure 5. Typical USB Application Diagram
8.2.1 Design Requirements
For this design example, a single TPD2E001 is used to protect all pins of a USB 2.0 connector.
Given the USB application, Table 1 shows the Design Parameters:
Table 1. Design Parameters
DESIGN PARAMETER
VALUE
Signal range on IO1, and IO2
0 V to 5 V
Signal voltage range on VCC
0 V to 5 V
Operating frequency
240 MHz
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 the protected lines
Operating frequency
The VCC pin can be connected in two different ways:
1. If the VCC pin is connected to the system power supply, the TPD2E001 works as a transient suppressor for
any signal swing above VCC + VF. A 0.1-μF capacitor on the device VCC pin is recommended for ESD


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