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Número de pieza | UCLAMP3306P | |
Descripción | Low Voltage TVS | |
Fabricantes | Semtech Corporation | |
Logotipo | ||
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No Preview Available ! PROTECTION PRODUCTS - MicroClampTM
Description
The μClampTM series of TVS arrays are designed to
protect sensitive electronics from damage or latch-up
due to ESD, lightning, and other voltage-induced
transient events. Each device will protect up to six lines
operating at 3.3 volts.
The μClampTM3306P is a solid-state device designed
specifically for transient suppression. It is constructed
using Semtech’s proprietary EPD process technology.
The EPD process provides low standoff voltages with
significant reductions in leakage currents and capaci-
tance over traditional pn junction processes. They offer
desirable characteristics for board level protection
including fast response time, low clamping voltage and
no device degradation.
The μClamp3306P may be used to meet the immunity
requirements of IEC 61000-4-2, level 4 (±15kV air,
±8kV contact discharge). It is packaged in an ultra
small SLP1616P6 package with a low profile of only
0.58mm. The leads are spaced at a pitch of 0.5mm
and are finished with lead-free NiPd. The small package
makes it ideal for use in portable electronics such as cell
phones, digital still cameras, and notebook computers.
uClamp3306P
Low Voltage TVS
for EwwSwD.DatPaSrheoett4eU.ccotmion
Features
Transient protection for data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (tp = 5/50ns)
Small package for use in portable electronics
Protects Six I/O
Working voltage: 3.3V
Low leakage current
Low operating and clamping voltages
Solid-state silicon-avalanche technology
Mechanical Characteristics
SLP1616P6 package
RoHS/WEEE Compliant
Nominal Dimensions: 1.6 x 1.6 x 0.58 mm
Lead Pitch: 0.5mm
Lead Finish: NiPd
Marking : Orientation Mark and Marking Code
Packaging : Tape and Reel per EIA 481
Applications
Cellular handsets and accessories
Notebooks and handhelds
MP3 Players
Digital cameras
Portable instrumentation
Circuit Diagram
1234 56
Center Tab (GND)
Device Schematic
Revision 01/17/2007
Package
1.6
1
6
0.5
1.6
0.6
6 Pin SLP package (Bottom Side View)
1.6 x 1.6 x 0.58mm (Nominal)
1 www.semtech.com
1 page PROTECTION PRODUCTS
Applications Information
Device Connection Options
The μClamp3306P is designed to protect 6 signal lines
with an operating voltage of 0 to 3.3V. It will present a
high impedance to the protected line up to 3.3 volts. It
will “turn on” when the line voltage exceeds 3.5 volts.
The device is unidirectional and may be used on lines
where the signal polarity is above ground.
Pins 1, 2, 3, 4, 5, and 6 are connected to I/O signals.
The center tab is connected to system ground. All
signal lines and ground should be made with the lowest
impedance and inductance path as possible. This will
improve signal quality of the lines and keep the
clamping voltage as low as possible during a fast
transient.
EPD TVS Characteristics
These devices are constructed using Semtech’s
proprietary EPD technology. The structure of the EPD
TVS is vastly different from the traditional pn-junction
devices. At voltages below 5V, high leakage current
and junction capacitance render conventional ava-
lanche technology impractical for most applications.
However, by utilizing the EPD technology, these devices
can effectively operate at 3.3V while maintaining
excellent electrical characteristics.
The EPD TVS employs a complex nppn structure in
contrast to the pn structure normally found in tradi-
tional silicon-avalanche TVS diodes. The EPD mecha-
nism is achieved by engineering the center region of
the device such that the reverse biased junction does
not avalanche, but will “punch-through” to a conduct-
ing state. This structure results in a device with supe-
rior DC electrical parameters at low voltages while
maintaining the capability to absorb high transient
currents.
uClamp3306P
www.DataSheet4U.com
Figure 1 - Circuit Diagram
1234 56
Center Tab (GND)
Figure 2 - Layout Example
Figure 3 - EPD TVS IV Characteristic Curve
IPP
ISB
IPT
VF IR
IF
VRWM VSB VPT VC
© 2007 Semtech Corp.
5
www.semtech.com
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet UCLAMP3306P.PDF ] |
Número de pieza | Descripción | Fabricantes |
UCLAMP3306P | Low Voltage TVS | Semtech Corporation |
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