TISP61089 Datasheet, PDF (1/17 Pages) Power Innovations Ltd – DUAL FORWARD-CONDUCTING P-GATE THYRISTORS PROGRAMMABLE OVERVOLTAGE PROTECTORS

Copyright © 1998, Power Innovations Limited, UK
TISP61089
DUAL FORWARD-CONDUCTING P-GATE THYRISTORS
PROGRAMMABLE OVERVOLTAGE PROTECTORS
NOVEMBER 1995 - REVISED FEBRUARY 1998
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
q Rated for LSSGR ‘1089 Conditions
WAVE SHAPE ^{‘1089 TEST CLAUSE ITSP}
AND TEST #
A
2/10 µs
4.5.8 Second-Level 1 120
10/1000 µs 4.5.7 First-Level 3
30
D PACKAGE
(TOP VIEW)
(Tip) K1 ¹
8 K1 (Tip)
(Gate) G
2
7 A (Ground)
NC 3
6 A (Ground)
(Ring) K2 ⁴
5 K2 (Ring)
MD6XAN
NC - No internal connection
Terminal typical application names shown in
parenthesis
60 Hz POWER
FAULT TIME
100 ms
1s
5s
300 s
900 s
‘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_TSM
A
11
4.5
2.4
0.95
0.93
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
P PACKAGE
(TOP VIEW)
(Tip) K1 1
(Gate) G 2
8 K1 (Tip)
7 A (Ground)
NC 3
6 A (Ground)
(Ring) K2 4
5 K2 (Ring)
MD6XAV
NC - No internal connection
Terminal typical application names shown in
parenthesis
device symbol
K1
G
K2
q Also Rated for ITU-T 10/700 impulses
q Surface Mount and Through-Hole Options
- TISP61089P for Plastic DIP
- TISP61089D for Small-Outline
- TISP61089DR for Small-Outline Taped and
Reeled
description
The TISP61089 is a dual forward-conducting
buffered p-gate overvoltage protector. It is
A
SD6XAE
Terminals K1, K2 and A correspond to the alternative
line designators of T, R and G or A, B and C. The
designed to protect monolithic SLICs (Subscriber
Line Interface Circuits) against overvoltages on
negative protection voltage is controlled by the voltage,
V_GG, applied to the G terminal.
the telephone line caused by lightning, a.c.
power contact and induction. The TISP61089 limits voltages that exceed the SLIC supply rail voltage. The
TISP61089 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
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.
1