100

0.1

0.01

10

1

10

-3

10

-4

10

-5

10

-6

0.5

1

2

4

6

8 10

Peak Pulse Voltage (kV)

1000

ESD

EFT

Surge

15

EFT Pulse Train

18

THVD1500

SLLSEY4A – JULY 2017 – REVISED NOVEMBER 2018

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Copyright © 2017–2018, Texas Instruments Incorporated

Typical Application (continued)

In the event of surge transients, high-energy content is characterized by long pulse duration and slow decaying

pulse power. The electrical energy of a transient that is dumped into the internal protection cells of a transceiver

is converted into thermal energy, which heats and destroys the protection cells, thus destroying the transceiver.

Figure 21 shows the large differences in transient energies for single ESD, EFT, surge transients, and an EFT

pulse train that is commonly applied during compliance testing.

Figure 21. Comparison of Transient Energies