PROTECTION PRODUCTS

PRELIMINARY

1

www.semtech.com

PROTECTION PRODUCTS

LCDA12C-1 and LCDA15C-1

Low Capacitance TVS Diode Array

Description

Features

Circuit Diagram

Schematic & PIN Configuration

Revision 01/15/03

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.

Applications

Mechanical Characteristics

ADSL Interfaces

RS-232, RS-422, V.90 Interfaces

Multi-Protocol Serial Transceivers

High-Speed Data Lines

Portable Electronics

WAN/LAN Equipment

Wireless Systems

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

SOT-143 (Top View)

Pin 1 and 4

Pin 2 and 3