SLVU2.8-8 Semtech, SLVU2.8-8 Datasheet - Page 4

• Manufacturer Part Number: SLVU2.8-8
• Description: TRANSIENT SUPPRESSOR DIODE ARRAY,BIDIRECTIONAL,2.8V V(RWM),SO
• Manufacturer: Semtech

Device Connection for Protection of Eight Data Lines
Electronic equipment is susceptible to transient distur-
bances from a variety of sources including: ESD to an
open connector or interface, direct or nearby lightning
strikes to cables and wires, and charged cables “hot
plugged” into I/O ports. The SLVU2.8-8 is designed to
protect sensitive components from damage and latch-
up which may result from such transient events. The
SLVU2.8-8 can be configured to protect four high-
speed line pairs differentially, or four lines to ground
(common mode). The device is connected as follows:
1 . Differential Protection of four line pairs:
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:
PROTECTION PRODUCTS
Applications Information
2004 Semtech Corp.
Line pairs are connected at pins 1 and 2, 3 and 4,
5 and 6, and 7 and 8.
Place the device near the input terminals or con-
nectors 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.
4
Differential Protection of Four Line Pairs
1
2
3
4
SLVU2.8-8 Circuit Diagram
From Connector
SLVU2.8-8
www.semtech.com
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