5

© 2007 Semtech Corp.

www.semtech.com

PROTECTION PRODUCTS

TClamp2502N

Circuit Diagram

Applications Information

Pin Conf

Pin Conf

Pin Conf

Pin Conf

Pin Configuration (T

iguration (T

iguration (T

iguration (T

iguration (Top Side Vie

op Side Vie

op Side Vie

op Side Vie

op Side View)

w)

w)

w)

w)

2

1

3

6

8

4

5

GND

7

9

10

n

i

Pn

o

i

t

a

c

i

f

i

t

n

e

d

I

3

,

2

,

1t

u

o

/

n

i

1

e

n

i

L

0

1

,

9

,

8t

u

o

/

n

i

2

e

n

i

L

7

,

6

,

5

,

4t

c

e

n

n

o

C

o

N

b

a

T

r

e

t

n

e

Cd

n

u

o

r

G

(1, 2, 3)

(8, 9, 10)

Center Tab

LINE 1

LINE 2

Device Connection Options for Protection of Two

High-Speed Data Lines

TClamp2502N is designed to protect two high-speed

data lines (one differential pair) from transient over-

voltages which result from lightning and ESD. They 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, 2 and 3, and 8, 9

and 10 as shown. For proper operation, pins 1 - 3

must be connected together and pins 8 - 10 must be

connected together. Pins 4, 5, 6, and 7 may be left

unconnected. For differential operation, the center tab is

also left not connected. For common mode operation,

the center tab is connected to ground. The ground

connection should be made directly to a ground plane

on the board for best results. The use of multiple vias

is recommended for reduced ground loop inductance.