SLLS804D March 2009 – August 2016 SN65HVDA540-5-Q1 , SN65HVDA540-Q1 , SN65HVDA541-5-Q1 , SN65HVDA541-Q1 , SN65HVDA542-5-Q1 , SN65HVDA542-Q1
PRODUCTION DATA.
Robust and reliable bus node design often requires the use of external transient protection device to protect against EFT and surge transients that may occur in industrial enviroments. Because ESD and transients have a wide frequency bandwidth from approximately 3 MHz to 3 GHz, high-frequency layout techniques must be applied during PCB design. The HVDA54x-Q1 and HVDA54x-5-Q1 families come with high on-chip IEC ESD protection, but if higher levels of system level immunity are desired external TVS diodes can be used. TVS diodes and bus filtering capacitors should be placed as close to the onboard connectors as possible to prevent noisy transient events from propagating further into the PCB and system.
NOTE
High-frequency currents follows the path of least impedance and not the path of least resistance.