DocID13304 Rev 4

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ACST2

Application information

13

Figure 17. Overvoltage ruggedness test circuit for resistive and inductive loads for

IEC 61000-4-5 standards

Figure 18. Typical current and voltage waveforms across the ACST2 during

IEC 61000-4-5 standard test

2.3

Electrical noise immunity

simple resistor by a logic level circuit, and still provides a high electrical noise immunity. The

intrinsic immunity of the ACST2 is shown by the specified dV/dt equal to 500 V/µs @ 125

°C. This immunity level is 5 to 10 times higher than the immunity provided by an equivalent

standard technology Triac with the same sensitivity. In other words, the ACST2 is sensitive,

R

Filtering unit

Rg

Model of the load

Rgene

Surge generator

ACST210-8x

2kV surge

L

R = 20

, L = 10 µH, VPP = 2 kV

Ω

I

V

0

0

V peak =V CL

1.2/50 µs voltage surge

8/20 µs current surge