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TISP61089 Datasheet(PDF) 1 Page - Power Innovations Ltd

Part No. TISP61089
Description  DUAL FORWARD-CONDUCTING P-GATE THYRISTORS PROGRAMMABLE OVERVOLTAGE PROTECTORS 
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Maker  POINN [Power Innovations Ltd]
Homepage  http://www.bourns.com
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TISP61089 Datasheet(HTML) 1 Page - Power Innovations Ltd

 
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TISP61089
DUAL FORWARD-CONDUCTING P-GATE THYRISTORS
PROGRAMMABLE OVERVOLTAGE PROTECTORS
PR O D UC T
I N FO R M A T IO N
1
NOVEMBER 1995 - REVISED FEBRUARY 1998
Copyright © 1998, Power Innovations Limited, UK
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.
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
q
2/10 Protection Voltage Specified
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
designed to protect monolithic SLICs (Subscriber
Line Interface Circuits) against overvoltages on
the telephone line caused by lightning, a.c.
WAVE SHAPE
‘1089 TEST CLAUSE
AND TEST #
ITSP
A
2/10 µs
4.5.8 Second-Level 1
120
10/1000 µs
4.5.7 First-Level 3
30
60 Hz POWER
FAULT TIME
‘1089 TEST CLAUSE
AND TEST #
ITSM
A
100 ms
4.5.13 Second-Level 2
11
1 s
4.5.13 Second-Level 2
4.5
5 s
4.5.13 Second-Level 2
2.4
300 s
4.5.13 Second-Level 1
0.95
900 s
4.5.13 Second-Level 1
0.93
ELEMENT
FIRST-LEVEL
V @ 56 A
SECOND-LEVEL
V @ 100 A
Diode
6
8
Crowbar
VGG = -48 V
-57
-60
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
device symbol
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.
SD6XAE
A
K1
G
K2
MD6XAN
D PACKAGE
(TOP VIEW)
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)
MD6XAV
P PACKAGE
(TOP VIEW)
NC - No internal connection
Terminal typical application names shown in
parenthesis
1
2
3
45
6
7
8
K2
G
K1
NC
K1
A
A
K2
(Tip)
(Ground)
(Ground)
(Ring)
(Gate)
(Tip)
(Ring)


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