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MAX202CDE4 Datasheet(PDF) 8 Page - Texas Instruments |
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MAX202CDE4 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 14 page www.ti.com ESD Test Conditions Human-Body Model (HBM) - + DUT R D 1.5kW V HBM 100pF C S 100 150 200 50 0 1.5 1.0 0.5 0.0 V =2kV HBM DUT=10-V,1-W ZenerDiode | Time-ns Machine Model (MM) MAX202 5-V DUAL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION SLLS576E – JULY 2003 – REVISED APRIL 2007 APPLICATION INFORMATION (continued) Stringent ESD testing is performed by TI, based on various conditions and procedures. Please contact TI for a reliability report that documents test setup, methodology, and results. The HBM of ESD testing is shown in Figure 5. Figure 6 shows the current waveform that is generated during a discharge into a low impedance. The model consists of a 100-pF capacitor, charged to the ESD voltage of concern, and subsequently discharged into the device under test (DUT) through a 1.5-k Ω resistor. Figure 5. HBM ESD Test Circuit Figure 6. Typical HBM Current Waveform The MM ESD test applies to all pins using a 200-pF capacitor with no discharge resistance. The purpose of the MM test is to simulate possible ESD conditions that can occur during the handling and assembly processes of manufacturing. In this case, ESD protection is required for all pins, not just RS-232 pins. However, after PC board assembly, the MM test no longer is as pertinent to the RS-232 pins. 8 Submit Documentation Feedback |
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