TISP61089S
DUAL FORWARD-CONDUCTING P-GATE THYRISTORS
PROGRAMMABLE OVERVOLTAGE PROTECTORS
Copyright © 1999, Power Innovations Limited, UK
JULY 1999
PROGRAMMABLE SLIC OVERVOLTAGE PROTECTION FOR LSSGR ‘1089
q
Dual Voltage-Programmable Protectors
- Wide 0 to -85 V Programming Range
- Low 5 mA max. Gate Triggering Current
- High 150 mA min. Holding Current
Rated for LSSGR ‘1089 Conditions
WAVE SHAPE
2/10 µs
10/1000 µs
60 Hz POWER
FAULT TIME
100 ms
1s
5s
300 s
900 s
‘1089 TEST CLAUSE
AND TEST #
4.5.8 Second-Level 1
4.5.7 First-Level 3
‘1089 TEST CLAUSE
AND TEST #
4.5.13 Second-Level 2
4.5.13 Second-Level 2
4.5.13 Second-Level 2
4.5.13 Second-Level 1
4.5.13 Second-Level 1
I
TSP
A
120
30
I
TSM
A
11
4.5
2.4
0.95
0.93
D PACKAGE
(TOP VIEW)
(Tip)
K1
NC
1
2
3
4
8
7
6
5
NC
A
A
NC
MD6XBA
(Gate) G
(Ring) K2
(Ground)
(Ground)
q
NC - No internal connection
Terminal typical application names shown in
parenthesis
device symbol
K1
A
q
2/10 Protection Voltage Specified
ELEMENT
Diode
Crowbar
V
GG
= -48 V
FIRST-LEVEL
V @ 56 A
6
-57
SECOND-LEVEL
V @ 100 A
8
-60
G1,G2
A
q
q
Also Rated for ITU-T 10/700 impulses
Small Outline Surface Mount Package
- Available Ordering Options
CARRIER
Tube
Taped and reeled
ORDER #
TISP61089SD
TISP61089SDR
K2
Terminals K1, K2 and A correspond to the alternative
line designators of T, R and G or A, B and C. The
negative protection voltage is controlled by the
voltage, V
GG,
applied to the G terminal.
SD6XAP
q
Single-Lead Line Connection Version of
Feed-Through TISP61089D
- Ground Lead Creepage Distance . . > 3 mm
description
The TISP61089S is a dual forward-conducting buffered p-gate 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 TISP61089S limits voltages that exceed the SLIC supply rail
voltage. The TISP61089S parameters are specified to allow equipment compliance with Bellcore GR-1089-
CORE, Issue 1.
The SLIC line driver section is typically powered from 0 V (ground) and a negative voltage in the region of
-10 V to -75 V. The protector gate is connected to this negative supply. This references the protection
(clipping) voltage to the negative supply voltage. As the protection voltage will then track the negative supply
voltage the overvoltage stress on the SLIC is minimised.
Positive overvoltages are clipped to ground by diode forward conduction. Negative overvoltages are initially
clipped close to the SLIC negative supply rail value. If sufficient current is available from the overvoltage, then
PRODUCT
INFORMATION
1
Information is current as of publication date. Products conform to specifications in accordance
with the terms of Power Innovations standard warranty. Production processing does not
necessarily include testing of all parameters.
POINN [ POWER INNOVATIONS LTD ]
