Mobile devices are susceptible to the damaging effects of Electrostatic Discharge (ESD). As much as 40 kilovolts of ESD can be generated by the human body or air discharge. In addition, mobile devices, because of their higher operating frequencies, are more sensitive to EMI/RFI interference.
Transient Voltage Suppression (TVS) devices provide protection at board-level from the effects of ESD as defined by IEC 61000-4-2. When used with the proper shielding, these devices provide additional EMI/RFI filtering.
A typical moblie device has several circuits and interfaces that are vulnerable to the effects of ESD and EMI. For instance, cellular phones utilize low power logic chips, which are sensitive to ESD due to MOS dielectric breakdowns and bipolar reverse junction current limits.
- SmartPhone/Cellular Phone