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LC03-6R2 데이터시트(PDF) 3 Page - ON Semiconductor

부품명 LC03-6R2
상세설명  Low Capacitance Surface Mount TVS for High-Speed Data Interfaces
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제조업체  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LC03-6R2 데이터시트(HTML) 3 Page - ON Semiconductor

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LC03−6R2
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3
APPLICATIONS INFORMATION
The LC03−6 ON Semiconductor’s device is a TVS Diode
array designed to protect sensitive electronics such as
communications
systems,
computers,
and
computer
peripherals against damage due to transient over−voltage
conditions caused by lightning, electrostatic discharge
(ESD), and electrical fast transients (EFT). Because of its
relative low capacitance (<25 pf), it can be used in high
speed I/O data lines such as USB 1.1 ports.
The integrated design of the LC03−6 device offers high
surge rating, low capacitance steering diodes, and a TVS
diode integrated in a single package (SO−8). In addition, this
device offers compliance to Bellcore 1089 requirements
(intra−building).
LC03−6 Device’s Configurations Options
Protection of Two High−speed I/O Data Lines
The LC03−6 device is able to protect two high speed data
lines against transient over−voltage conditions by driving
them to a fixed reference point for clamping purposes.
Depending in the application’s requirements, the LC03−6
device can be configured for protection in either differential
mode (Line−to−Line) or common mode (Line−to−ground).
The Figure 5 shows the connection for Differential mode
(Line−to−Line) and Common mode (Line−to−Ground)
protection. The inputs and outputs of the I/O data lines are
connected at terminals 1 to 8, and 4 to 5 while the terminals
2, 3, 6 and 7 are connected to ground; for better performance,
it is recommended to minimize parasitic inductances by
using ground planes and minimizing the PCB trace lengths
for the ground return connections.
Figure 5. Configuration for Differential
and Common Mode Protection
LC03−6
Line 1
Out
Line 2
Out
Line 1
In
Line 2
In
If differential protection is required by some particular
applications, then the configuration for differential
protection is made as shown in the Figure 6:
Figure 6. Configuration for Differential
Protection (Line−to−Line)
LC03−6
Line 1
Out
Line 2
Out
Line 1
In
Line 2
In
N/C
N/C
N/C
N/C
T1/E1 Linecard Protection (Intra−Building)
The Figure 7 shows a typical schematic for a T1/E1 line
card protection circuit. The LC03−6 device is connected
between Tip & Ring on the transmit and receive line pairs.
it provides protection to metallic and common mode
lightning surges per Bellcore 1089 intra−building (For
further information, see Bellcore 1089 standard). A metallic
voltage is defined as a difference of potential between the T
and R terminals of a telecommunications pair. Currents
caused by lightning, in the absence of protector operation
and
with
balanced
terminal
equipment
and
telecommunications loop, cause Tip and Ring conductors to
attain the same potential hence do not produce metallic
transients. Common mode surges are suppressed by the
isolation of the transformer.


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