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TPD1E10B09

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SLLSEB0D – FEBRUARY 2012 – REVISED SEPTEMBER 2015

7 Detailed Description

7.1 Overview

TPD1E10B09 is a single-channel ESD TVS that provides ±20-kV IEC 61000-4-2 (Level 4) contact and air-gap

ESD protection. The 10-pF back-to-back diode architecture is suitable for signals that range from –9 V to 9 V and

supports data rates up to 500 Mbps. The industry-standard 0402 package is convenient for placement in

applications with limited space.

7.2 Functional Block Diagram

7.3 Feature Description

TPD1E10B09 is a bidirectional TVS with high ESD protection level. This device protects circuit from ESD strikes

up to ±20-kV contact and ±20-kV air-gap specified in the IEC 61000-4-2 level 4 international standard. The

device can also handle up to 4.5-A surge current (IEC 61000-4-5 8/20 µs). The I/O capacitance of 10 pF

supports a data rate up to 500 Mbps. This clamping device has a small dynamic resistance of 0.5

Ω typically.

This makes the clamping voltage low when the device is actively protecting other circuits. For example, the

clamping voltage is only 13 V when the device is taking 1-A transient current. The breakdown is bidirectional so

that this protection device is a good fit for GPIO, especially audio lines which carry bidirectional signals. Low

–40°C to 125°C makes this ESD device work at extensive temperatures in most environments. The space-saving

0402 package can fit into small electronic devices like mobile equipment and wearables.

7.4 Device Functional Modes

TPD1E10B09 is a passive clamp that has low leakage during normal operation when the voltage between pin 1

ESD events, transient voltages as high as ±20 kV can be clamped between the two pins. When the voltages on

the protected lines fall below the trigger voltage, the device reverts back to the low leakage passive state.

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