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PDF RClamp0534N Data sheet ( Hoja de datos )
| Número de pieza | RClamp0534N | |
| Descripción | Low Capacitance TVS | |
| Fabricantes | Semtech | |
| Logotipo |  |
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PROTECTION PRODUCTS - RailClamp®
Description
RailClamp® TVS diodes are specifically designed to
protect sensitive components which are connected to
high-speed data and transmission lines from overvolt-
age caused by ESD (electrostatic discharge), CDE
(cable discharge events), and EFT (electrical fast
transients).
The unique design incorporates surge rated, low
capacitance steering diodes and a TVS diode in a
single package. This allows the device to absorb large
amounts of energy while protecting downstream
components from harmful transient events.
The RClamp®0534N is in a 10-pin SLP3020N10
package. It measures 3.0 x 2.0 x 0.60mm. The leads
are finished with lead-free NiPdAu. The combination of
small size, low capacitance, and high surge capability
makes them ideal for use in applications such as 10/
100 Ethernet, USB 2.0, and video interfaces.
RClamp0534N
Low Capacitance TVS for
High-Speed Interfaces
Features
ESD protection for high-speed data lines to
IEC 61000-4-2 (ESD) ±30kV (air), ±30kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 25A (8/20μs)
Array of surge rated diodes with internal TVS Diode
Small package saves board space
Protects four I/O lines and Voltage Bus
Low capacitance: 5pF (VR=0V)
Low clamping voltage
Low operating voltage: 5.0V
Solid-state silicon-avalanche technology
Mechanical Characteristics
SLP3020N10 10L package
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Nominal Dimensions: 3.0 x 2.0 x 0.60 mm
Lead Finish: NiPdAu
Molding compound flammability rating: UL 94V-0
Marking : Marking code + Date code
Packaging : Tape and Reel
Applications
USB 2.0 Power and Data Line Protection
Video Graphics Cards
Monitors and Flat Panel Displays
Digital Video Interface (DVI)
Notebook Computers
Networking Equipment
Circuit Diagram
Circuit Diagram
I/0 1 In 1
VCC
10
I/0 2 In
NC
12
45
GND
GND
3, 8, Tabs
I/0 3 In
I/0 4 In
NC
NC
Revision 10/21/2010
Pin Assignments (Top View)
(Note tabs are connected to GND Pins)
1 www.semtech.com
1 page  
PROTECTION PRODUCTS
Applications Information
Device Connection Options for Protection of Four
High-Speed Data Lines
The RClamp0534N is designed to protect four data
lines from transient over-voltages by clamping them to
a fixed reference. When the voltage on the protected
line exceeds the reference voltage (plus diode VF) the
steering diodes are forward biased, conducting the
transient current away from the sensitive circuitry.
Data lines are connected at pins 1, 2, 4 and 5. The
package is designed for easy trace routing. Pins 3 and
8 are internally connected to the center tabs and
should be connected directly to a ground plane on the
board for best results. The path length is kept as short
as possible to minimize parasitic inductance.
The positive reference (REF2) is connected at pin 9.
The options for connecting the positive reference are
as follows:
1. To protect data lines and the power line, connect
pin 10 directly to the positive supply rail (VCC). In
this configuration the data lines are referenced to
the supply voltage. The internal TVS diode
prevents over-voltage on the supply rail.
2. The RClamp0534N can be isolated from the power
supply by adding a series resistor between pin 10
and VCC. A value of 100kΩ is recommended. The
internal TVS and steering diodes remain biased,
providing the advantage of lower capacitance.
3. In applications where no positive supply reference
is available, or complete supply isolation is desired,
the internal TVS may be used as the reference. In
this case, pin 10 is not connected. The steering
diodes will begin to conduct when the voltage on
the protected line exceeds the working voltage of
the TVS (plus one diode drop).
RClamp0534N
Figure 1- Pin Configuration (Top View)
I/0 1 In 1
I/0 2 In
GND
I/0 3 In
I/0 4 In
VCC
NC
GND
NC
NC
Figure 2 - Layout Example
© 2010 Semtech Corp.
5
www.semtech.com
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| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet RClamp0534N.PDF ] | |
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