TPP25011

UNIDIRECTIONAL FUNCTION

PROGRAMMABLE BREAKDOWN VOLTAGE

UP TO 250 V

PROGRAMMABLE CURRENT LIMITATION

FROM 40 mA TO 500 mA

SURGE CURRENT CAPABILITY

µs

FEATURES

SO8

Dedicated

to

sensitive

telecom

equipment

protection, this device can provide both voltage

and current triggered protection with a very tight

tolerance.

The breakdown voltage can be easily programmed

by using an external zener diode.

A multiple protection mode can be also performed

when using several zener diodes, providing to

each line interface an optimized protection level.

The current limiting function is achieved with the

use of a resistorbetween the gate and the cathode.

The value of the resistor will determine the level of

the desired current.

DESCRIPTION

SCHEMATIC DIAGRAM

OVERVOLTAGE and OVERCURRENT

PROTECTION for TELECOM LINE

February 1998 - Ed: 4

Application Specific Discretes

A.S.D.

™

TM: ASD is trademarks of SGS-THOMSON Microelectronics.

CCITT K17 :

10/700

µs

1.5 kV

5/310

µs38 A

VDE 0433 :

10/700

µs2k V

5/310

µs

40 A (*)

CNET :

0.5/700

µs

1.5 kV

0.2/310

µs38 A

FCC part 68 :

2/10

µs

2.5 kV

2/10

µs

75 A (*)

BELLCORE

TR-NWT-000974 :

10/1000

µs1 kV

10/1000

µs

30 A (*)

(*) with series resistors or PTC.

COMPLIESWITH THE FOLLOWINGSTANDARDS :

1/7