Example with an ESDprotectioncircuit consisting of shunted TVS diodes on a differential I/O. You can read more about this particular circuit in this article. A typical voltage clamping diode circuit is shown below.
Learn how to design effective ESDprotectioncircuits with hands-on LTSpice simulations. Optimize voltage, current, and circuit integrity in your electronic designs.
An ESDprotectioncircuit prevents high-voltage spikes from damaging sensitive components like microprocessors, memory chips, and analog ICs. Properly placed ESD and TVS diodes help redirect harmful currents to the ground, reducing the risk of PCB failure.
With the proper TVS selected, designing a PCB Layout that leverages the strategies outlined in this ESD Layout Guide will provide the PCB designer with an avenue towards successfully protecting a system against ESD.
The diagram shown below is typical for basic ESDprotection of indoor network line and equipment applications (Examples: home office / consumer electronics peripheral devices).
•Output ESDprotection is primarily designed to protect against HBM events. – Typically, CDM is not a concern for a pure output as there is no oxide connections – CDM robustness is inherent.
Even after decades of ESD design guides and layout notes, it’s still surprisingly easy to damage a high-speed interface with the wrong ESDprotection diode.What used to work for slow GPIO lines often collapses when the data rate hits several gigabits per second. A misplaced via or an oversized TVS diode array can distort the signal eye or fail IEC 61000-4-2 testing before you even finish ...
Complete ESDprotection guide covering circuit design, TVS diodes, protection methods, and PCB layout techniques. Learn how electrostatic discharge works and how to protect your electronics.
