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Power Innovations Limited
Power Innovations Limited

TISPL758LF3D Datasheet Preview

TISPL758LF3D Datasheet

INTEGRATED SYMMETRICAL AND ASYMMETRICAL BIDIRECTIONAL OVERVOLTAGE PROTECTORS

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TISPL758LF3D pdf
TISPL758LF3D
INTEGRATED SYMMETRICAL AND ASYMMETRICAL BIDIRECTIONAL OVERVOLTAGE
PROTECTORS FOR LUCENT TECHNOLOGIES L7581/2/3 LINE CARD ACCESS SWITCHES
Copyright © 1998, Power Innovations Limited, UK
JANUARY 1998 - REVISED OCTOBER 1998
OVERVOLTAGE PROTECTION FOR LUCENT TECHNOLOGIES LCAS
q Symmetrical and Asymmetrical
Characteristics for Optimum Protection of
Lucent L7581/2/3 LCAS
TERMINAL
VDRM
V(BO)
PAIR
VV
T-G (SYMMETRICAL)
±105
±130
R-G (ASYMMETRICAL)
+105, -180 +130, -220
CUSTOMISED VERSIONS AVAILABLE
D PACKAGE
(TOP VIEW)
T1
NC 2
NC 3
R4
8G
7G
6G
5 G MDXXAE
NC - No internal connection
q Rated for International Surge Wave Shapes
WAVE SHAPE
2/10 µs
8/20 µs
10/160 µs
10/700 µs
10/560 µs
10/1000 µs
STANDARD
GR-1089-CORE
ANSI C62.41
FCC Part 68
ITU-T K20/21
FCC Part 68
GR-1089-CORE
ITSP
A
175
120
60
50
45
35
device symbol
T
R
q Ion-Implanted Breakdown Region
Precise And Stable Voltage
Low Voltage Overshoot Under Surge
SD3XAA
G
Terminals T, R and G correspond to the
alternative line designators of A, B and C
q Planar Passivated Junctions
Low Off-State Current < ±10 µA
q Small Outline Surface Mount Package
- Available Ordering Options
CARRIER
Tube
Taped and reeled
ORDER #
TISPL758LF3D
TISPL758LF3DR
description
The TISPL758LF3 is an integrated combination
of a symmetrical bidirectional overvoltage
protector and an asymmetrical bidirectional
overvoltage protector. It is designed to limit the
peak voltages on the line terminals of the Lucent
Technologies L7581/2/3 LCAS (Line Card
Access Switches). An LCAS may also be
referred to as a Solid State Relay, SSR, i.e. a
replacement of the conventional electro-
mechanical relay.
The TISPL758LF3D voltages are chosen to give
adequate LCAS protection for all switch
conditions. The most potentially stressful
condition is low level power cross when the
LCAS switches are closed. Under this condition,
the TISPL758LF3D limits the voltage and
corresponding LCAS dissipation until the LCAS
thermal trip operates and opens the switches.
Under open-circuit ringing conditions, the line
ring (R) conductor will have high peak voltages.
For battery backed ringing, the ring conductor
will have a larger peak negative voltage than
positive i.e. the peak voltages are asymmetric.
An overvoltage protector with a similar voltage
asymmetry will give the most effective protection.
On a connected line, the tip (T) conductor will
have much smaller voltage levels than the open-
circuit ring conductor values. Here a symmetrical
voltage protector gives adequate protection.
Overvoltages are normally caused by a.c. power
system or lightning flash disturbances which are
induced or conducted on to the telephone line.
These overvoltages are initially clipped by
protector breakdown clamping until the voltage
rises to the breakover level, which causes the
Support from the Microelectronics Group of Lucent Technologies Inc. is gratefully acknowledged in the definition of
the TISPL758LF3D voltage levels and for performing TISPL758LF3D evaluations.
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



Power Innovations Limited
Power Innovations Limited

TISPL758LF3D Datasheet Preview

TISPL758LF3D Datasheet

INTEGRATED SYMMETRICAL AND ASYMMETRICAL BIDIRECTIONAL OVERVOLTAGE PROTECTORS

No Preview Available !

TISPL758LF3D pdf
TISPL758LF3D
INTEGRATED SYMMETRICAL AND ASYMMETRICAL BIDIRECTIONAL OVERVOLTAGE
PROTECTORS FOR LUCENT TECHNOLOGIES L7581/2/3 LINE CARD ACCESS SWITCHES
JANUARY 1998 - REVISED OCTOBER 1998
device to crowbar into a low-voltage on state. This low-voltage on state causes the current resulting from the
overvoltage to be safely diverted through the device. For negative surges, the high crowbar holding current
prevents d.c. latchup with the SLIC current, as the surge current subsides. The TISPL758LF3 is guaranteed
to voltage limit and withstand the listed international lightning surges in both polarities.
These protection devices are supplied in a small-outline surface mount (D) plastic package. The difference
between the TISPL758LF3D and TISPL758LF3DR versions is shown in the ordering information.
absolute maximum ratings, TA = 25°C (unless otherwise noted)
RATING
Repetitive peak off-state voltage
R-G terminals
T-G terminals
Non-repetitive peak on-state pulse current (see Notes 1, 2 and 3)
2/10 µs (GR-1089-CORE, 2/10 µs voltage wave shape)
8/20 µs (ANSI C62.41, 1.2/50 µs voltage wave shape)
10/160 µs (FCC Part 68, 10/160 µs voltage wave shape)
5/200 µs (VDE 0433, 2.0 kV, 10/700 µs voltage wave shape)
0.2/310 µs (I3124, 2.0 kV, 0.5/700 µs voltage wave shape)
5/310 µs (ITU-T K20/21, 2.0 kV, 10/700 µs voltage wave shape)
5/310 µs (FTZ R12, 2.0 kV, 10/700 µs voltage wave shape)
10/560 µs (FCC Part 68, 10/560 µs voltage wave shape)
10/1000 µs (GR-1089-CORE, 10/1000 µs voltage wave shape)
Non-repetitive peak on-state current (see Notes 1, 2 and 3)
full sine wave
50 Hz
60 Hz
Repetitive peak on-state current, 50/60 Hz, (see Notes 2 and 3)
Initial rate of rise of on-state current, Exponential current ramp, Maximum ramp value < 70 A
Junction temperature
Storage temperature range
SYMBOL
VDRM
ITSP
ITSM
ITSM
diT/dt
TJ
Tstg
VALUE
-180, +105
-105, +105
UNIT
V
175
120
60
50
A
50
50
50
45
35
16
20
2x1
150
-40 to +150
-40 to +150
A
A
A/µs
°C
°C
NOTES: 1. Above the maximum specified temperature, derate linearly to zero at 150°C lead temperature.
2. Initially the TISPL758LF3 must be in thermal equilibrium with 0°C < TJ <70°C.
3. The surge may be repeated after the TISPL758LF3 returns to its initial conditions.
recommended operating conditions
R1 Series Resistor for GR-1089-CORE
Series Resistor for FCC Part 68
R1
Series Resistor for ITU-T K20/21
R1
MIN TYP MAX UNIT
first-level surge, operational pass (4.5.7) 20
10/160 non-operational pass
0
10/160 operational pass
10/560 non-operational pass
18
0
10/560 operational pass
10
10/700, < 2 kV, operational pass
10/700, 4 kV, operational pass
0
40
PRODUCT INFORMATION
2


Part Number TISPL758LF3D
Description INTEGRATED SYMMETRICAL AND ASYMMETRICAL BIDIRECTIONAL OVERVOLTAGE PROTECTORS
Maker Power Innovations Limited
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