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MAX14673ETB Datasheet(PDF) 11 Page - Maxim Integrated Products |
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MAX14673ETB Datasheet(HTML) 11 Page - Maxim Integrated Products |
11 / 13 page MAX14670–MAX14673 Bidirectional Current-Blocking, High-Input Overvoltage Protector with Adjustable OVLO www.maximintegrated.com Maxim Integrated │ 11 ESD Test Conditions ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test setup, test methodology, and test results. Human Body Model ESD Protection Figure 2 shows the HBM and Figure 3 shows the cur- rent waveform it generates when discharged into a low- impedance state. This model consists of a 100pF capaci- tor charged to the ESD voltage of interest, which is then discharged into the device through a 1.5kΩ resistor. IEC 61000-4-2 The IEC 61000-4-2 standard covers ESD testing and performance of finished equipment. However, it does not specifically refer to integrated circuits. The major differ- ence between tests done using the Human Body Model and IEC 61000-4-2 is higher peak current in IEC 61000- 4-2 because series resistance is lower in the IEC 61000- 4-2 model. Hence, the ESD withstand voltage measured to IEC 61000-4-2 is generally lower than that measured using the Human Body Model. Figure 4 shows the IEC 61000-4-2 model, and Figure 5 shows the current wave- form for the IEC 61000-4-2 ESD Contact Discharge test. Figure 2. Human Body ESD Test Model Figure 4. IEC 61000-4-2 ESD Test Model Figure 3. Human Body Current Waveform Figure 5. IEC 61000-4-2 ESD Generator Current Waveform CHARGE-CURRENT- LIMIT RESISTOR DISCHARGE RESISTANCE STORAGE CAPACITOR CS 100pF RC 1MΩ RD 1.5kΩ HIGH- VOLTAGE DC SOURCE DEVICE UNDER TEST 100% 36.8% tRL TIME tDL PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) Ir 0 0 IPEAK (AMPS) 90% 10% CHARGE-CURRENT- LIMIT RESISTOR DISCHARGE RESISTANCE STORAGE CAPACITOR CS 150pF RC 50MΩ TO 100MΩ RD 330Ω HIGH- VOLTAGE DC SOURCE DEVICE UNDER TEST tR = 0.7ns TO 1ns 30ns 60ns t 100% 90% 10% IPEAK (AMPS) |
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