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PDF UCLAMP0506A Data sheet ( Hoja de datos )
| Número de pieza | UCLAMP0506A | |
| Descripción | 5-Line ESD protection Array | |
| Fabricantes | Semtech Corporation | |
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PROTECTION PRODUCTS - MicroClampTM
Description
The μClampTM series of TVS arrays are designed to pro-
tect sensitive electronics from damage or latch-up due
to ESD. They are designed for use in applications where
board space is at a premium. Each device requires less
than 2.9mm2 of PCB area and will protect up to five lines.
They are bidirectional devices and may be used on lines
where the signal polarities swing above and below ground.
TVS diodes are solid-state devices designed specifically
for transient suppression. They feature large cross-sec-
tional area junctions for conducting high transient cur-
rents. They offer desirable characteristics for board level
protection including fast response time, low operating
and clamping voltage, and no device degradation.
These devices may be used to meet the immunity re-
quirements of IEC 61000-4-2, level 4. The small SC89
package makes them ideal for use in portable electron-
ics such as cell phones, PDAs, notebook computers, and
digital cameras.
uClamp0506A
μClampTM
5-Line ESD prwowwt.eDactatSihoeent4UA.cormray
Features
Transient protection for data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
Protects five bidirectional I/O lines
Ultra-small SC-89 package (1.7 x 1.7 x 0.6mm)
requires less than 2.9mm2 of PCB area
Working voltage: 5V
Low leakage current
Low operating and clamping voltages
Solid-state silicon-avalanche technology
Mechanical Characteristics
SC-89 (SOT-666) package
RoHS / WEEE Compliant
Molding compound flammability rating: UL 94V-0
Marking : Marking Code and pin 1 indicator
Weight: 2.9mg (typical)
Packaging : Tape and Reel per EIA 481
Applications
Cellular Handsets and Accessories
Cordless Phones
Notebooks and Handhelds
Portable Instrumentation
Digital Cameras
Peripherals
MP3 Players
Dimensions
1.70
0.50
Schematic & PIN Configuration
0.30
1.25 1.70
0.60
Maximum Dimensions (mm)
Revision 03/21/07
1
SC-89 (Top View)
www.semtech.com
1 page  
PROTECTION PRODUCTS
Applications Information
Device Connection for Protection of Five Data Lines
These devices are designed to protect up to five
biidirectional data lines. The device is connected as
follows:
1. Bidirectional protection of five I/O lines is achieved
by connecting pins 1, 3, 4, 5, and 6 to the data
lines. Pin 2 is connected to ground. The ground
connection should be made directly to the ground
plane for best results. The path length is kept as
short as possible 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:
z Place the TVS near the input terminals or connec-
tors to restrict transient coupling.
z Minimize the path length between the TVS and the
protected line.
z Minimize all conductive loops including power and
ground loops.
z The ESD transient return path to ground should be
kept as short as possible.
z Never run critical signals near board edges.
z Use ground planes whenever possible.
μClamp0506A
www.DataSheet4U.com
Circuit Diagram
134
56
2
Protection of Five Bidirectional Lines
© 2007 Semtech Corp.
5
www.semtech.com
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| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet UCLAMP0506A.PDF ] | |
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