Application information

ASCT4

8/13

Doc ID 8766 Rev 5

Figure 18.

Overvoltage ruggedness test circuit for resistive and inductive loads for

IEC 61000-4-5 standards

Figure 19.

Typical current and voltage waveforms across the ACST4 during

IEC 61000-4-5 standard test

AC Mains

R

Filtering unit

Rg

Model of the load

Rgene

Surge generator

ACST4

2kV surge

L

R = 23

, L = 2 µH, Vsurge = 2 kV

Rg = 220

(ACST410-8), 68

(ACST435-8)

Ω

ΩΩ

I

V

0

0

Vpeak =VCL

1.2/50 µs voltage surge

8/20 µs current surge

Ipeak = 90 A

dI/dt = 130 A/µs