MAX9546(2005) データシートの表示（PDF） - Maxim Integrated

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MAX9546
(Rev.:2005)

Differential Video Interface Chipset

Maxim Integrated 

Differential Video Interface Chipset

IEC 1000-4-2

The IEC 1000-4-2 standard covers ESD testing and

performance of finished equipment; it does not specifi-

cally refer to integrated circuits (Figure 4).

The major difference between tests done using the

Human Body Model and IEC 1000-4-2 is higher peak

current in IEC 1000-4-2, because series resistance is

lower in the IEC 1000-4-2 model. Hence, the ESD with-

stand voltage measured to IEC 1000-4-2 is generally

lower than that measured using the Human Body Model.

Figure 5 shows the current waveform for the ±8kV IEC

1000-4-2 ESD Contact-Discharge test. The Air-Gap test

involves approaching the device with a charged probe.

The Contact-Discharge method connects the probe to

the device before the probe is energized.

RC

50Ω to 100Ω

RD

330Ω

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

HIGH-

VOLTAGE

DC

SOURCE

Cs

150pF

STORAGE

CAPACITOR

DEVICE

UNDER

TEST

I

100%

90%

Figure 4.IEC 1000-4-2 ESD Test Model

10%

t

tr = 0.7ns TO 1ns

30ns

60ns

Figure 5. IEC 1000-4-2 ESD Generator Current Waveform

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