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MAX4841 Datasheet(PDF) 8 Page - Maxim Integrated Products |
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MAX4841 Datasheet(HTML) 8 Page - Maxim Integrated Products |
8 / 10 page Overvoltage Protection Controllers with Status FLAG 8 _______________________________________________________________________________________ Human Body Model Figure 8 shows the Human Body Model and Figure 9 shows the current waveform it generates when dis- charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of inter- est, which is then discharged into the device through a 1.5k Ω resistor. IEC 1000-4-2 Since January 1996, all equipment manufactured and/or sold in the European community has been required to meet the stringent IEC 1000-4-2 specification. The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifically refer to integrated circuits. The MAX4838–MAX4841 help users design equipment that meets Level 3 of IEC 1000-4-2, without additional ESD-protection components. The main 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 ESD test model (Figure 10), the ESD-withstand voltage measured to this standard is generally lower than that measured using the Human Body Model. Figure 11 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 charger probe. The Contact Discharge method connects the probe to the device before the probe is energized. CHARGE-CURRENT- LIMIT RESISTOR DISCHARGE RESISTANCE STORAGE CAPACITOR Cs 100pF RC 1M Ω RD 1.5k Ω HIGH- VOLTAGE DC SOURCE DEVICE UNDER TEST Figure 8. Human Body ESD Test Model IP 100% 90% 36.8% tRL TIME tDL CURRENT WAVEFORM PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) Ir 10% 0 0 AMPERES Figure 9. Human Body Model Current Waveform PART CONFIGURATION/ PACKAGE VDS MAX (V) RON AT 4.5V (m Ω) MANUFACTURER Si9936DY Dual/SO8 30 80 Si5904DC Dual/1206-8 30 143 Si1426DH Single/SC70-6 30 115 Vishay Siliconix www.vishay.com 402-563-6866 FDC6305N Dual/SSOT-6 20 80 FDS8926A Dual/SO8 30 20 FDG315N Single/SC70-6 30 160 Fairchild Semiconductor www.fairchildsemi.com 207-775-8100 IRF7752 Dual/TSSOP-8 30 36 IRF7303 Dual/SO8 30 80 IRF7607 Single/Micro-8 20 30 International Rectifier www.irf.com 310-322-3331 Table 1. MOSFET Suggestions |
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