參數(shù)資料
型號: SLVE2.8TC
廠商: Semtech Corporation
英文描述: EPD TVS⑩ Diodes For ESD and Latch-Up Protection
中文描述: 環(huán)保署二極管⑩二極管ESD和鎖定保護
文件頁數(shù): 4/7頁
文件大?。?/td> 78K
代理商: SLVE2.8TC
4
2001 Semtech Corp.
www.semtech.com
PROTECTION PRODUCTS
Applications Information
SLVE2.8 & SLVG2.8
Circuit Diagrams
Common Mode Protection (SLVE2.8 & SLVG2.8)
Device Connection
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 SLV series is designed to
protect sensitive components from damage and latch-
up which may result from such transient events. The
SLVG2.8 is designed to protect one unidirectional line
while the SLVE2.8 is designed to protect one bidirec-
tional line (or two differential lines). The options for
connecting the devices are as follows:
"
SLVE2.8:
Common mode protection of one bidirec-
tional data line is achieved by connecting the data
line input/output at pins 2 and 3. Pins 1 and 4 are
connected to ground. For differential protection,
pins 1 & 4 can be connected to a second I/O line.
For best results, the ground connection should be
made directly to a ground plane on the board. The
path length should be kept as short as possible to
minimize parasitic inductance.
SLVG2.8:
Common mode protection of one unidi-
rectional line is achieved by connecting the line to
be protected at pins 2 & 3. Pins 1 & 4 are con-
nected to ground. For best results, the ground
connection should be made directly to a ground
plane on the board. The path length should be
kept as short as possible to minimize parasitic
inductance.
"
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.
1
2
3
4
Line
In
Line
Out
1
2
3
4
Line 2
In
Line 2
Out
Line 1
In
Line 1
Out
Differential Mode Protection (SLVE2.8 only)
1
2
3
4
1
2
3
4
SLVG2.8
SLVE2.8
相關PDF資料
PDF描述
SLVG2.8TC EPD TVS⑩ Diodes For ESD and Latch-Up Protection
SLVU2.8-4 ULTRA LOW CAPACITANCE TVS ARRAY
SLVU2.8 XTAL CER SMT 7X5 2PAD
SLVU2.8TC Low Voltage EPD TVS⑩ Diodes For ESD and Latch-Up Protection
SLVU2.8-4 EPD TVS⑩ Diodes Array For ESD and Latch-Up Protection
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