LCDA12C-1 Semtech Corporation, LCDA12C-1 Datasheet

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LCDA12C-1

Manufacturer Part Number
LCDA12C-1
Description
Manufacturer
Semtech Corporation
Datasheet

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The LCDAxxC-1 is a low capacitance transient voltage
suppressor (TVS) diode array. It is designed to protect
sensitive CMOS ICs from the damaging effects of ESD
and lightning. Each device will protect one line in
common (line-to-ground) mode or one line pair in
metallic (Line-to-line) mode. They are low capacitance
(< 15pF) making them suitable for use on high-speed
telecom and datacom interfaces without signal degra-
dation.
The configuration of the LCDAxxC-1 has been optimized
for easy layout on high density boards. The small
SOT-143 package minimizes required board space.
These devices will handle up to 20 Amps for an
8/20µs lightning impulse. The low inductance con-
struction minimizes voltage overshoot during high
current surges.
The LCDAxxC-1 may be used to protect ADSL inter-
faces, multi-protocol serial transceivers, portable
electronics, and wireless systems.
Revision 01/15/03
PROTECTION PRODUCTS
PROTECTION PRODUCTS
Description
Circuit Diagram
Pin 1 and 4
Pin 2 and 3
1
Low Capacitance TVS Diode Array
Features
Mechanical Characteristics
Applications
Schematic & PIN Configuration
Transient protection to high-speed data lines
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 0.5kV, 12A (8/20µs)
Configuration optimized for easy board layout
Protects one line pair
Low capacitance (<15pF) for high-speed interfaces
Low clamping voltage
Low leakage current
Operating voltage: 12V and 15V
Solid-state silicon-avalanche technology
JEDEC SOT-143 package
Molding compound flammability rating: UL 94V-0
Marking : Marking code
Packaging : Tape and Reel per EIA 481
RoHS/WEEE Compliant
ADSL Interfaces
RS-232, RS-422, V.90 Interfaces
Multi-Protocol Serial Transceivers
High-Speed Data Lines
Portable Electronics
WAN/LAN Equipment
Wireless Systems
LCDA12C-1 and LCDA15C-1
SOT-143 (Top View)
PRELIMINARY
www.semtech.com

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LCDA12C-1 Summary of contents

Page 1

... Circuit Diagram Pin 1 and 4 Pin 2 and 3 Revision 01/15/03 LCDA12C-1 and LCDA15C-1 Low Capacitance TVS Diode Array Features Transient protection to high-speed data lines IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) IEC 61000-4-5 (Lightning) 0.5kV, 12A (8/20µ ...

Page 2

... 2005 Semtech Corp. LCDA12C-1 and LCDA15C ...

Page 3

... (µs) Capacitance vs. Reverse Voltage 9 8 Reverse Voltage - V 2005 Semtech Corp. LCDA12C-1 and LCDA15C-1 110 100 100 1000 (µs) Clamping Voltage vs. Peak Pulse Current ...

Page 4

... ADSL Protection A typical ADSL protection circuit is shown in Figure 3. The LCDA12C-1 (or LCDA15C-1 for 15 volt drivers) is connected from each line to ground on the IC side of the line. They provide lightning and ESD protection for the sensitive line driver IC. ...

Page 5

... DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS 3. OR GATE BURRS. 4. REFERENCE JEDEC STD TO-253, VARIATION D. Land Pattern - SOT-143 Z NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY 2. 2005 Semtech Corp. LCDA12C-1 and LCDA15C-1 H GAUGE PLANE SEATING PLANE 0. DETAIL ...

Page 6

... Contact Information 2005 Semtech Corp. LCDA12C-1 and LCDA15C ...

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