uClamp0502P
PROTECTION PRODUCTS
Applications Information
Device Connection Options
These TVS diodes are designed to protect two data,
lines. The device is unidirectional and may be used on
lines where the signal polarity is above ground. The
cathode band should be placed towards the line that is
to be protected.
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
Good circuit board layout is critical for the suppression
of ESD induced transients. The following guidelines are
recommended:
Place the TVS near the input terminals or connec-
tors to restrict transient coupling.
Minimize the path length between the TVS and the
protected line.
Minimize all conductive loops including power and
ground loops.
The ESD transient return path to ground should be
kept as short as possible.
Never run critical signals near board edges.
Use ground planes whenever possible.
Circuit Diagram
? 2008 Semtech Corp.
4
www.semtech.com
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