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MAX3180E Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX3180E Datasheet(HTML) 6 Page - Maxim Integrated Products |
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6 / 8 page 
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. ±15kV ESD-Protected, 0.5µA, +3V to +5.5V, 1.5Mbps RS-232 Receivers in SOT23-5 6 _______________________________________________________________________________________ CHARGE-CURRENT LIMIT RESISTOR DISCHARGE RESISTANCE STORAGE CAPACITOR Cs 150pF RC 50M Ω TO 100MΩ RD 330 Ω HIGH- VOLTAGE DC SOURCE DEVICE UNDER TEST Figure 5. IEC 1000-4-2 ESD Test Model tR= 0.7ns TO 1ns 30ns 60ns t 100% 90% 10% I Figure 6. IEC 1000-4-2 ESD Generator Current Waveform |
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