7 Detailed Description

7.1 Overview

The ESD751 and ESD761 are single-channel bidirectional ESD diodes. These devices can dissipate ESD

strikes above the maximum level specified by the IEC 61000-4-2 standard. The low capacitance between the

I/O pins makes these devices suitable for slower speed signals such as USB-PD or industrial I/O applications.

The surge current capability is suitable for VBUS protection or industrial I/Os requiring 2.8 A of surge current

protection.

7.2 Functional Block Diagram

1

2

7.3 Feature Description

These clamping devices have a small dynamic resistance, which makes the clamping voltage low when the

devices are actively protecting other circuits. The breakdown is bidirectional so these protection devices are

a good fit for applications requiring postive and negative polarity protection. Low leakage allows the diode

to conserve power when working below the VRWM. The temperature range of −55°C to +150°C makes these

ESD devices work at extensive temperatures in most environments. The leaded SOD-523 package is good for

applications requiring autmotic optical inspection (AOI).

7.3.1 IEC 61000-4-5 Surge Protection

The I/O pins can withstand surge events up to 2.8 A and 1.8 A (8/20 µs waveform) for the ESD751 and ESD761

respectively.

7.3.2 I/O Capacitance

The capacitance between the I/O pins is 1.6 pF and 1.1 pF for the ESD751 and ESD761 respectively. The

capacitance of these devices support data rates up to 1 Gbps.

7.4 Device Functional Modes

The ESD751 and ESD761 are single channel passive clamps that have low leakage during normal operation

when the voltage between I/O and GND is below VRWM, and activate when the voltage between I/O and GND

goes above VBR. When the voltages on the protected lines fall below the VHOLD, the device reverts back to the

low leakage passive state

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ESD751, ESD761

SLVSH10B – NOVEMBER 2022 – REVISED DECEMBER 2022

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Product Folder Links: ESD751 ESD761