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RCLAMP0502A Schematic ( PDF Datasheet ) - Semtech Corporation

Teilenummer RCLAMP0502A
Beschreibung Low Capacitance TVS Array
Hersteller Semtech Corporation
Logo Semtech Corporation Logo 




Gesamt 8 Seiten
RCLAMP0502A Datasheet, Funktion
PROwwTwE.DCaTtaISOheNet4UP.cRomODUCTS - RailClamp®
Description
The RailClamp® series consists of ultra low capacitance
TVS arrays designed to protect high speed data inter-
faces. This series has been specifically designed to
protect sensitive components which are connected to
high-speed data and transmission lines from overvoltage
caused by ESD (electrostatic discharge), CDE (Cable
Discharge Events), and EFT (electrical fast transients).
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 two high speed
data lines.
The monolithic design incorporates surge rated, low
capacitance steering diodes and a TVS diode in a single
package. Each line has a typical capacitance of 0.9pF to
ground and 0.3pF between lines. The capacitance of
each line is well matched for consistant signal balance.
Signal integrity is further preserved with the flow through
design. A connection to the TVS is provided for protec-
tion of external voltage busses, such as those found in
USB applications. This device is optimized for ESD
protection of portable electronics. They may be used to
meet the ESD immunity requirements of IEC 61000-4-2,
Level 4 (±15kV air, ±8kV contact discharge).
The RClamp0502A is in a 6-pin, RoHS/WEEE compli-
ant, SC-89 (SOT-666) package. It measures 1.6 x 1.6
x 0.6mm. The leads are finished with lead-free matte
tin. The small package makes it ideal for use in por-
table electronics such as cell phones, laptops, and
digital still cameras.
Circuit Diagram
RClamp0502A
RailClamp®
Low Capacitance TVS Array
Features
‹ 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)
‹ Flow through design for ease of layout for high
speed data line application
‹ Protects up to two I/O lines & power line
‹ Low capacitance (<0.9pF) for high-speed interfaces
‹ Ultra-small package requires less than 2.9mm2 of
PCB area
‹ Low leakage current and clamping voltage
‹ Low operating voltage: 5.0V
‹ Solid-state silicon-avalanche technology
Mechanical Characteristics
‹ SC-89 (SOT-666) package
‹ RoHS/WEEE Compliant
‹ Lead Finish: matte tin
‹ Molding compound flammability rating: UL 94V-0
‹ Marking: A
‹ Packaging: Tape and Reel
Applications
‹ USB 2.0 High Speed
‹ 10/100/1000 Ethernet Ports
‹ High-Definition Multimedia Interface (HDMI)
‹ Digital Visual Interface (DVI)
‹ Monitors and Flat Panel Displays
‹ Video Graphics Cards
‹ IEEE 1394 Firewire Ports High Speed
Schematic & PIN Configuration
Pin 3 & 4
Pin 5
Revision 06/28/2008
Pin 2
Pin 1 & 6
1
16
25
34
SC-89 6L (Top View)
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RCLAMP0502A Datasheet, Funktion
PROTECTION PRODUCTS
Appwlwiwc.aDattiaoSnhesetI4nUf.coomrmation - Spice Model
RClamp0502A
RClamp0502A Spice Model
Table 1 - RClamp0502A Spice Parameters
Parameter
Unit D1 (LCRD) D2 (LCRD)
IS Amp 1E-20 1E-20
BV
Volt 110
20
VJ Volt 0.67 0.67
RS
Ohm
0.339
0.568
IBV
Amp 1E-3
1E-3
CJO
Farad
0.7E-12
0.7E-12
TT
sec
2.541E-9
2.541E-9
M -- 0.01 0.01
N -- 1.1 1.1
EG eV 1.11 1.11
D3 (TVS)
2.43E-13
8
0.64
1.24
1E-3
83E-12
2.541E-9
0.222
1.1
1.11
© 2008 Semtech Corp.
6
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