UCLAMP3304A Datasheet, PDF (1/8 Pages) Semtech Corporation – μClampTM 4-Line ESD protection Array

PROTECTION PRODUCTS - MicroClamp^TM
Description
The µClamp^TM 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 four
lines. They are unidirectional devices and may be used
on lines with positive signal polarities.
The µclamp^TM3304A is constructed using Semtech’s pro-
prietary EPD process technology. The EPD process pro-
vides low standoff voltages with significant reductions in
leakage currents and capacitance over silicon-avalanche
diode processes. They feature a true operating voltage
of 3.3 volts for superior protection when compared to
traditional pn junction devices.
These devices may be used to meet the immunity re-
quirements of IEC 61000-4-2, level 4. They offer desir-
able characteristics for board level protection including
fast response time, low operating and clamping voltage,
and no device degradation. The small SC89 package
makes them ideal for use in portable electronics such as
cell phones, PDAs, notebook computers, and digital cam-
eras.
uClamp3304A
µClamp^TM
4-Line ESD protection Array
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 four unidirectional 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: 3.3V
‹ Low leakage current
‹ Low operating and clamping voltages
‹ Solid-state silicon-avalanche technology
Mechanical Characteristics
‹ SC-89 (SOT-666) package
‹ Molding compound flammability rating: UL 94V-0
‹ Marking: Marking Code
‹ Lead Finish: Matte Tin
‹ RoHS Compliant
‹ 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
Schematic & PIN Configuration
1.70
0.50
1.25 1.70
0.30
0.60
Maximum Dimensions (mm)
Revision 02/25/05
1
SC-89 (Top View)
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