MAY 2004 – REVISED FEBRUARY 2005

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

TISP61089HDM Overvoltage Protector

TISP61089HDM

DUAL FORWARD-CONDUCTING P-GATE THYRISTOR

PROGRAMMABLE OVERVOLTAGE PROTECTOR

Device Symbol

Intended for Use in GR-1089-CORE Issue 3 Compliant

Line Cards

Dual, Voltage-Programmable SLIC Protector

– Low 15 mA max. Gate Triggering Current

– Supports Battery Voltages Down to -155 V

– High 150 mA min. Holding Current

Rated for GR-1089-CORE Issue 3 Conditions

How To Order

8-SOIC (210 mil) Package (Top View)

Description

The TISP61089HDM is a dual forward-conducting buffered p-gate thyristor (SCR) overvoltage protector. It is designed to protect monolithic

SLICs (Subscriber Line Interface Circuits) against overvoltages on the telephone line caused by lightning, a.c. power contact and induction.

The TISP61089HDM limits voltages that exceed the SLIC supply rail voltage. The TISP61089HDM parameters are specified to allow

equipment compliance with Telcordia GR-1089-CORE, Issue 3 and ITU-T recommendations K.20, K.21 and K.45.

The SLIC line driver section is typically powered from 0 V (ground) and a negative voltage in the region of -20 V to -155 V. The protector gate is

connected to this negative supply. This references the protection (clipping) voltage to the negative supply voltage. The protection voltage will

then track the negative supply voltage and the overvoltage stress on the SLIC is minimized.

Impulse Waveshape

GR-1089-CORE Test

A

Section

Test #

2/10

4.6.7

4.6.8

4

1

500

10/1000

4.6.7

4.6.7.1

1, 3

1

100

Meets GR-1089-CORE First Level A.C. Power Fault Conditions

GR-1089-CORE

Section 4.6.10

Test #

I RMS

Power Fault Duration

As

10.33

900

20.17

900

31

1

41

1

60.5

30

72.2

2

83

1.1

95

0.4

GR-1089-CORE Second Level A.C. Power Fault Conditions are

Detailed in the ‘Applications Information’ Section

MD-8SOIC(210)-001-b

NC - No internal connection

Terminal typical application names shown in

parenthesis

1

2

3

45

6

7

8

K1

A

A

K2

G

K1

K2

NC

(Tip)

(Ground)

(Ground)

(Ring)

(Gate)

(Tip)

(Ring)

SD-TISP6-001-a

G

K1

K2

K1

K2

A

A

The negative protection voltage is

controlled by the voltage, V

applied to the G terminal.

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex

............................................... UL Recognized Component

Device

Package

Carrier

Marking Code

Standard Quantity

TISP61089HDM

8-SOIC (210 mil)

Embossed Tape Reeled

TISP61089HDMR-S

61089H

2000

For Lead Free

Termination Finish

Order As