IO3

IO4

GND

IO2

IO1

V

CC

8

TPD4E001

SLLS682L – JULY 2006 – REVISED MAY 2016

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7 Detailed Description

7.1 Overview

The TPD4E001 is a four-channel transient voltage suppressor (TVS) based ESD protection diode array. The

TPD4E001 is rated to dissipate ESD strikes at the maximum level specified in the IEC 61000-4-2 international

standard (Level 4). This device has a 1.5-pF IO capacitance per channel, making it ideal for use in high-speed

data IO interfaces. The ultra-low leakage current (<1 nA maximum) is suitable for precision analog

measurements in applications like glucose meters and heart rate monitors.

7.2 Functional Block Diagram

7.3 Feature Description

The TPD4E001 is a uni-directional ESD protection device with low capacitance. The device is constructed with a

central ESD clamp that features two hiding diodes per line to reduce the capacitive loading. This central ESD

strikes above the maximum level specified in the IEC 61000-4-2 level 4 international standard. The TPD4E001's

low loading capacitance makes it ideal for protection high-speed signal terminals.

7.4 Device Functional Modes

fall below the trigger voltage of the TPD4E001 (usually within 10's of nano-seconds) the device reverts back to a

high-impedance state.