LC03-6_13,LC03-6_13 pdf中文资料,LC03-6_13引脚图,LC03-6

PROTECTION PRODUCTS

Description

Low Capacitance TVS for High-Speed

Data Interfaces

Features

2000 watts peak pulse power (t

p

= 8/20µs)

Transient protection for high-speed data lines to

Bellcore 1089 (Intra-Building) 100A (2/10µs)

ITU K.20 I

PP

=40A (5/310µs)

IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)

IEC 61000-4-4 (EFT) 40A (5/50ns)

IEC 61000-4-5 (Lightning) 100A (8/20µs)

Protects two lines in common and differential mode

Low capacitance for high-speed interfaces

Low clamping and operating voltage

Integrated structure saves board space and

increases reliability

Solid-state silicon avalanche technology

LC03-6

The LC03-6 transient voltage suppressor is designed to

protect components which are connected to high

speed telecommunication lines from voltage surges

caused by

lightning,

electrostatic discharge

(ESD),

cable discharge events

(CDE),

and electrical fast

transients

(EFT).

TVS diodes are ideal for use as board level protection

of sensitive semiconductor components. The LC03-6

combines a TVS diode with a rectifier bridge to provide

transient protection in both common and differential

mode with a single device. The capacitance of the

device is minimized (< 25pF) to ensure correct signal

transmission on high speed lines . The LC03-6 meets

the short-haul (intra-building) transient immunity

requirements of Bellcore 1089 for telecommunications

applications.

The SO-8 surface mount package allows flexibility in

the design of crowded PC boards.

Mechanical Characteristics

JEDEC SO-8 package

RoHS/WEEE Compliant

UL 497B listed

Molding compound flammability rating: UL 94V-0

Marking : Part number, date code

Packaging : Tube or Tape and Reel per EIA 481

Applications

T1/E1 Line Cards

T3/E3 and DS3 Interfaces

STS-1 Interfaces

ISDN S/T-Interfaces

ISDN U-Interfaces

10/100 Ethernet

Circuit Diagram

Schematic & PIN Configuration

1

8

Pin 1 and 8

2

7

Pin 2, 3, 6,

and 7

Ground

3

6

4

5

Pin 4 and 5

SO-8 (Top View)

Revision 01/18/2008

1

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LC03-6

PROTECTION PRODUCTS

Absolute Maximum Rating

R ating

Peak Pulse Power (t

p

= 8/20µs)

Peak Pulse Current (t

p

= 8/20µs)

Lead Soldering Temperature

Operating Temperature

Storage Temperature

Symbol

P

p k

I

P P

T

L

T

J

T

STG

Value

2000

100

260 (10 sec.)

-55 to +125

-55 to +150

Units

Watts

A

°C

Electrical Characteristics

LC03-6

Parameter

Reverse Stand-Off Voltage

Reverse Breakdown Voltage

Reverse Leakage Current

Clamp ing Voltage

Junction Cap acitance

Symbol

V

RWM

V

BR

I

R

V

C

V

C

j

I

t

= 1mA

V

RWM

= 6V, T=25°C

I

PP

= 50A, t

p

= 8/20µs

Line-to-Ground

I

PP

= 100A, t

p

= 8/20µs

Line-to-Ground

Between I/O p ins and

Ground

V

R

= 0V, f = 1MHz

Between I/O p ins

V

R

= 0V, f = 1MHz

16

6.8

25

15

20

25

Conditions

Minimum

Typical

Maximum

6

Units

V

µA

V

pF

8

12

pF



2008 Semtech Corp.

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LC03-6

PROTECTION PRODUCTS

Typical Characteristics

Non-Repetitive Peak Pulse Power vs. Pulse Time

100

Peak Pulse Power - P

pk

(kW)

Power Derating Curve

110

100

90

% of Rated Power or I

PP

80

70

60

50

40

30

20

10

1

0.1

1

10

Pulse Duration - t

p

(µs)

100

1000

0

25

50

75

100

125

o

150

175

Ambient Temperature - T

A

( C)

Pulse Waveform

110

100

90

80

Percent of I

PP

70

60

50

40

30

20

10

0

5

10

15

T im e (µs)

20

25

30

td = I

PP

/2

e

-t

W aveform

Parameters:

tr = 8µs

td = 20µs

Clamping Voltage - V

C

(V)

20

18

16

14

12

10

8

6

4

2

0

Clamping Voltage vs. Peak Pulse Current

L in e-T o-L in e

L in e -T o -G rou n d

W a v efo rm

P ara m e ters :

tr = 8 µ s

td = 2 0 µ s

0

10

20

30

40

50

60

70

80

90

100

11 0

P e a k P u lse C u r re n t - I

P P

(A )

Normalized Capacitance vs. Reverse Voltage

1.4

1.2

Forward Voltage - V

F

(V)

6

Forward Voltage vs. Forward Current

5

1

C

J

(V

R

) / C

J

(V

R

=0)

0.8

0.6

0.4

0.2

0

1

2

3

4

Reverse Voltage - V

R

(V)

5

6

4

3

2

1

W a v efo rm

P ara m e ters :

tr = 8 µ s

td = 2 0 µ s

f = 1MHz

0

10

20

30

40

50

60

70

80

90

100

11 0

F o r w a r d C u r r e n t - I

F

(A )



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LC03-6

PROTECTION PRODUCTS

Typical Characteristics

Insertion Loss S21 - I/O to I/O

Insertion Loss S21 - I/O to Gnd

CH1 S21

LOG

6 dB / REF 0 dB

1: -3.03 dB

910 MHz

CH1 S21

LOG

6 dB / REF 0 dB

1: -3.03 dB

642 MHz

0 dB

-6 dB

-12 dB

-18 dB

-24 dB

-30 dB

-36 dB

-42 dB

-48 dB

1

MHz

START . 030 MHz

10

MHz

100

MHz

3

2

1

4

2: -2.84 dB

900 MHz

3: -20.79 dB

1.8 GHz

4: -2.97 dB

2.5 GHz

0 dB

4

2: -7.11 dB

900 MHz

1

-6 dB

-12 dB

-18 dB

-24 dB

-30 dB

-36 dB

-42 dB

2

3: -23.03 dB

1.8 GHz

4: -6.17 dB

2.5 GHz

3

1

GHz GHz

STOP 3000. 000000 MHz

-48 dB

1

MHz

START . 030 MHz

10

MHz

100

MHz

3

1

GHz GHz

STOP 3000. 000000 MHz



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LC03-6

PROTECTION PRODUCTS

Applications Information

Device Connection Options for Protection of Two

High-Speed Data Lines

The LC03-6 is designed to protect two high-speed data

lines (one differential pair) from transient over-voltages

which result from lightning and ESD. The device can be

configured to protect in differential (Line-to-Line) and

common (Line-to-Ground) mode. Data line inputs/

outputs are connected at pins 1 to 8, and 4 to 5 as

shown. Pins 2, 3, 6, and 7 are connected to ground.

These pins 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 induc-

tance. In applications where high common mode

voltages are present, differential protection is achieved

by leaving pins 2, 3, 6, and 7 not connected.

T1/E1 Linecard Protection (Intra-Building)

A typical T1/E1 linecard protection circuit is shown

below. The LC03-6 is connected between Tip and Ring

on the transmit and receive line pairs. It provides

protection to metallic and common mode lightning

surges per Bellcore 1089. This design takes advan-

tage of the isolation of the transformer to suppress

common mode surges. To complete the protection

circuit, the RClamp3304N (or RClamp0504N for 5V

supplies) is employed as the IC side protection ele-

ment. This device helps prevent the transceiver from

latching up by providing fine clamping of transients that

are coupled through the transformer. For further

information, reference Semtech application note

AN97-10.

T3/E3 and STS-1 Protection

The LC03-6 can also be used to protect T3/E3 and

STS-1 interfaces. The data lines from the BNC inter-

face are run through the LC03-6 (i.e. enters at pin 1

and exits at pin 8) with the ground connection made at

the other side of the device (pins 4 and 5). The center

pins (2, 3, 6, and 7) are not connected. In this configu-

ration, the LC03-6 adds less than 12pF of capacitance

to each line and provides surge protection to 100A

(tp=8/20µs).

Connection for Differential (Line-to-Line) and

Common Mode Protection (Line-to-Ground)

Connection for Differential Protection

(Line-to-Line)

Matte Tin Lead Finish

Matte tin has become the industry standard lead-free

replacement for SnPb lead finishes. A matte tin finish

is composed of 100% tin solder with large grains.

Since the solder volume on the leads is small com-

pared to the solder paste volume that is placed on the

land pattern of the PCB, the reflow profile will be

determined by the requirements of the solder paste.

Therefore, these devices are compatible with both

lead-free and SnPb assembly techniques. In addition,

unlike other lead-free compositions, matte tin does not

have any added alloys that can cause degradation of

the solder joint.



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LC03-6_13

LC03-6_13概述

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