PRELIMINARY
1
www.semtech.com
PROTECTION PRODUCTS
SLVU2.8-4
EPD TVS Diode Array
For ESD and Latch-Up Protection
Description
Features
Circuit Diagram Schematic & PIN Configuration
Revision 1/18/2008
The SLV series of transient voltage suppressors are
designed to protect low voltage, state-of-the-art CMOS
semiconductors from transients caused by electro-
static discharge (ESD), cable discharge events (CDE),
lightning and other induced voltage surges.
The devices are constructed using Semtech’s propri-
etary EPD process technology. The EPD process pro-
vides low standoff voltages with significant reductions
in leakage currents and capacitance over silicon-
avalanche diode processes. The SLVU2.8-4 features
integrated low capacitance compensation diodes that
reduce the typical capacitance to 5pF per line. This,
combined with low leakage current, means signal
integrity is preserved in high-speed applications such
as 10/100 Ethernet.
The SLVU2.8-4 is in an SO-8 package and may be used
to protect two high-speed line pairs. The “flow-thru”
design minimizes trace inductance and reduces voltage
overshoot associated with ESD events. The low
clamping voltage of the SLVU2.8-4 minimizes the
stress on the protected IC.
The SLV series TVS diodes will meet the surge require-
ments of IEC 61000-4-2, Level 4.
Applications
Mechanical Characteristics
10/100 Ethernet
WAN/LAN Equipment
Switching Systems
Desktops, Servers, and Notebooks
Instrumentation
Base Stations
Analog Inputs
400 Watts peak pulse power (t
p
= 8/20µs)
Transient protection for high speed data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 24A (8/20µs)
Protects two line pairs (four lines)
Comprehensive pin out for easy board layout
Low capacitance
Low leakage current
Low operating and clamping voltages
Solid-state EPD TVS process technology
JEDEC SO-8 package
Molding compound flammability rating: UL 94V-0
Marking : Part number, date code, logo
Packaging : Tape and Reel
SO-8 (Top View)
Pin 1, 3
Pin 2, 4
Pin 6, 8
Pin 5, 7
