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SMDA05-6 Datasheet(PDF) 4 Page - Semtech Corporation

No. de Pieza. SMDA05-6
Descripción  Unidirectional TVS Array for Protection of Six Lines
Descarga  6 Pages
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Fabricante  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
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SMDA05-6 Datasheet(HTML) 4 Page - Semtech Corporation

   
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ã 2000 Semtech Corp.
www.semtech.com
PROTECTION PRODUCTS
SMDA05-6
Circuit Diagram
Connection Diagram
Device Connection for Protection of Six Data Lines
The SMDA05-6 is designed to protect up to 6 data or
I/O lines operating at 5 volts. They are unidirectional
devices and may be used on lines where the signal
polarities are above ground (i.e. 0 to 5V).
The device is connected as follows:
l
Pins 1, 2, 3, 4, 5 and 8 are connected to the lines
that are to be protected. Pins 6 and 7 are con-
nected to ground. The ground connections should
be made directly to the ground plane for best
results. The path length is kept as short as pos-
sible to reduce the effects of parasitic inductance
in the board traces.
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:
l
Place the TVS near the input terminals or connec-
tors to restrict transient coupling.
l
Minimize the path length between the TVS and the
protected line.
l
Minimize all conductive loops including power and
ground loops.
l
The ESD transient return path to ground should be
kept as short as possible.
l
Never run critical signals near board edges.
l
Use ground planes whenever possible.
12
3
4
5
6
7
8
DATA IN
DATA OUT
DATA IN
DATA OUT
Applications Information


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