MAX3180EEUK-T 查看數據表（PDF） - Maxim Integrated

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MAX3180EEUK-T

±15kV ESD-Protected, 0.5µA, +3V to +5.5V, 1.5Mbps RS-232 Receivers in SOT23-5

Maxim Integrated 

±15kV ESD-Protected, 0.5µA, +3V to +5.5V,

1.5Mbps RS-232 Receivers in SOT23-5

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 ICs. The MAX3180E–MAX3183E enable the

design of equipment that meets the highest level (Level

4) of IEC 1000-4-2 without the need for additional ESD-

protection components.

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, the ESD withstand

voltage measured to this standard is generally lower

than that measured using the Human Body. Figure 5

shows the IEC 1000-4-2 model, and Figure 6 shows the

current waveform for the ±8kV IEC 1000-4-2 Level 4

ESD Contact Discharge test.

The Air-Gap test involves approaching the device with

a charged probe. The Contact Discharge method con-

nects the probe to the device before the probe is ener-

gized.

Power-Supply Decoupling

In most circumstances, a 0.1µF VCC bypass capacitor

is adequate. Connect the bypass capacitor as close to

the IC as possible.

RC

50MΩ TO 100MΩ

CHARGE-CURRENT

LIMIT RESISTOR

RD

330Ω

DISCHARGE

RESISTANCE

HIGH-

VOLTAGE

DC

SOURCE

Cs

150pF

STORAGE

CAPACITOR

Figure 5. IEC 1000-4-2 ESD Test Model

DEVICE

UNDER

TEST

I

100%

90%

10%

tR= 0.7ns TO 1ns

30ns

t

60ns

Figure 6. IEC 1000-4-2 ESD Generator Current Waveform

6 _______________________________________________________________________________________

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