D-

D+

GND

USB

Controller

IO1

IO2

IO3

GND

0.1µF

ID

TPD3E001

www.ti.com

SLLS683F – JULY 2006 – REVISED OCTOBER 2015

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

TPD3E001 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

tolerable level to the protected IC.

8.2 Typical Application

Figure 3. Typical Application Schematic

8.2.1 Design Requirements

For this design example, a single TPD3E001 is used to protect all the pins of a USB2.0 micro-AB connector. The

micro-AB connector has an extra pin, the ID pin, which is used by the device to determine whether it is to

perform the "A" role or the "B' role. This functionality the ID offers is part of the USB On-the-Go (OTG) Standard.

The TPD3E001 offers 3-channels of IEC Level ESD protection to provide complete protection for the USB micro-

Given the USB application, the following parameters are known.

Table 1. Design Parameters

DESIGN PARAMETER

EXAMPLE VALUE

Signal range on IO1, IO2

0 V to 3.6 V

State of IO3 (ID)

GND or Floating

0 V to 5.25 V

Operating Frequency

240 MHz

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