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TISP61511D Datasheet(PDF) 1 Page - Power Innovations Ltd

Part No. TISP61511D
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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TISP61511D Datasheet(HTML) 1 Page - Power Innovations Ltd

 
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TISP61511D, TISP61512P
DUAL FORWARD-CONDUCTING P-GATE THYRISTORS
PROGRAMMABLE OVERVOLTAGE PROTECTORS
PRODUCT
INFORMATION
1
JULY 1995 - REVISED SEPTEMBER 1997
Copyright © 1997, 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
from 0 V (ground) and a negative voltage in the region of -10 V to -70 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 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
the protector will crowbar into a low voltage on-state condition. As the current subsides the high holding
current of the crowbar prevents d.c. latchup.
These monolithic protection devices are fabricated in ion-implanted planar vertical power structures for high
reliability and in normal system operation they are virtually transparent. The buffered gate design reduces the
loading on the SLIC supply during overvoltages caused by power cross and induction.
q
Dual Voltage-Programmable Protectors.
- Wide 0 to -80 V Programming Range
- Low 5 mA max. Triggering Current
- High 150 mA min. Holding Current
q
Rated for International Surge Wave Shapes
q
Functional Replacements for
description
The TISP61511D and TISP61512P are dual
forward-conducting buffered p-gate overvoltage
protectors.
They
are
designed
to
protect
monolithic Subscriber Line Interface Circuits,
SLICs, against overvoltages on the telephone
line caused by lightning, ac power contact and
induction. The TISP61511D and TISP61512P
limit voltages that exceed the SLIC supply rail
voltage.
The SLIC line driver section is typically powered
VOLTAGE
WAVE SHAPE
STANDARD
ITSP
A
2/10 µs
TR-NWT-001089
170
1.2/50 µs
ETS 300 047-1
90
0.5/700 µs
RLM88/I3124
40
10/700 µs
K17, K20, K21
40
10/1000 µs
TR-NWT-001089
30
DEVICE TYPE
PACKAGE TYPE
FUNCTIONAL
REPLACEMENT
LCP1511,
LCP1511D,
ATTL7591AS,
MGSS150-1
8-pin Small-Outline
TISP61511D
or order as
TISP61511DR
for Taped and Reeled
LCP1512,
LCP1512D,
ATTL7591AB,
MGSS150-2
8-pin Plastic DIP
TISP61512P
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
MD6XAJ
'61512P PACKAGE
(TOP VIEW)
NC - No internal connection
Terminal typical application names shown in
parenthesis
1
2
3
4
5
6
7
8
K2
G
K1
NC
K1
A
A
K2
(Tip)
(Ground)
(Ground)
(Ring)
(Gate)
(Tip)
(Ring)
MD6XAL
'61511D PACKAGE
(TOP VIEW)
NC - No internal connection
Terminal typical application names shown in
parenthesis
1
2
3
4
5
6
7
8
K1
A
A
K2
G
K1
K2
NC
(Tip)
(Ground)
(Ground)
(Ring)
(Gate)
(Tip)
(Ring)


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