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기능 SYMMETRICAL TRANSIENT VOLTAGE SUPPRESSORS
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TISP4180F3 데이터시트, 핀배열, 회로
Copyright © 1997, Power Innovations Limited, UK
TISP4125F3, TISP4150F3, TISP4180F3
SYMMETRICAL TRANSIENT
VOLTAGE SUPPRESSORS
MARCH 1994 - REVISED SEPTEMBER 1997
TELECOMMUNICATION SYSTEM SECONDARY PROTECTION
q Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
DEVICE
‘4125F3
‘4150F3
‘4180F3
VDRM
V
100
120
145
V(BO)
V
125
150
180
D PACKAGE
(TOP VIEW)
T1
T2
T3
T4
8R
7R
6R
5 R MDXXAI
Specified ratings require the connection
of pins 1, 2, 3 and 4 for the T terminal.
q Planar Passivated Junctions
Low Off-State Current < 10 µA
SL PACKAGE
(TOP VIEW)
q Rated for International Surge Wave Shapes
WAVE SHAPE
2/10 µs
8/20 µs
10/160 µs
10/560 µs
0.5/700 µs
10/700 µs
10/1000 µs
STANDARD
FCC Part 68
ANSI C62.41
FCC Part 68
FCC Part 68
RLM 88
FTZ R12
VDE 0433
CCITT IX K17/K20
REA PE-60
ITSP
A
175
120
60
45
38
50
50
50
35
T1
R2
device symbol
MDXXAH
MD4XAA
D PACKAGE
TTTT
4321
SL PACKAGE
T
1
q Surface Mount and Through-Hole Options
PACKAGE
Small-outline
Small-outline taped
and reeled
Single-in-line
PART # SUFFIX
D
DR
SL
q UL Recognized, E132482
description
These medium voltage symmetrical transient
voltage suppressor devices are designed to
protect two wire telecommunication applications
against transients caused by lightning strikes
and a.c. power lines. Offered in three voltage
variants to meet battery and protection
requirements they are guaranteed to suppress
and withstand the listed international lightning
surges in both polarities.
Transients are initially clipped by breakdown
clamping until the voltage rises to the breakover
level, which causes the device to crowbar. The
5 678
2
RR RR
R
SD4XAE
Terminals T and R correspond to the
alternative line designators of A and B
high crowbar holding current prevents d.c.
latchup as the current subsides.
These monolithic protection devices are
fabricated in ion-implanted planar structures to
ensure precise and matched breakover control
and are virtually transparent to the system in
normal operation
The small-outline 8-pin assignment has been
carefully chosen for the TISP series to maximise
the inter-pin clearance and creepage distances
which are used by standards (e.g. IEC950) to
establish voltage withstand ratings.
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




TISP4180F3 pdf, 반도체, 판매, 대치품
TISP4125F3, TISP4150F3, TISP4180F3
SYMMETRICAL TRANSIENT
VOLTAGE SUPPRESSORS
MARCH 1994 - REVISED SEPTEMBER 1997
TYPICAL CHARACTERISTICS
R and T terminals
OFF-STATE CURRENT
vs
JUNCTION TEMPERATURE
100
TC3MAF
10
NORMALISED BREAKDOWN VOLTAGES
vs
JUNCTION TEMPERATURE
TC3MAI
Normalised to V(BR)
1.2 I(BR) = 100 µA and 25°C
Positive Polarity
1
0·1
0·01
VD = 50 V
VD = -50 V
0·001
-25
0 25 50 75 100 125
TJ - Junction Temperature - °C
Figure 2.
150
NORMALISED BREAKDOWN VOLTAGES
vs
JUNCTION TEMPERATURE
TC3HAJ
1.2
V(BO)
1.1
V(BR)M
1.1
V(BO)
1.0
0.9
-25
V(BR)
V(BR)M
0 25 50 75 100 125
TJ - Junction Temperature - °C
Figure 3.
150
ON-STATE CURRENT
vs
ON-STATE VOLTAGE
100
TC3MAL
10
1.0
0.9
-25
V(BR)
Normalised to V(BR)
I(BR) = 100 µA and 25°C
Negative Polarity
0 25 50 75 100 125
TJ - Junction Temperature - °C
Figure 4.
150
150°C
1
1
25°C
-40°C
2 3 4 5 6 7 8 9 10
VT - On-State Voltage - V
Figure 5.
PRODUCT INFORMATION
4

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TISP4180F3 전자부품, 판매, 대치품
TISP4125F3, TISP4150F3, TISP4180F3
SYMMETRICAL TRANSIENT
VOLTAGE SUPPRESSORS
MARCH 1994 - REVISED SEPTEMBER 1997
APPLICATIONS INFORMATION
electrical characteristics
The electrical characteristics of a TISP are strongly dependent on junction temperature, TJ. Hence a
characteristic value will depend on the junction temperature at the instant of measurement. The values given
in this data sheet were measured on commercial testers, which generally minimise the temperature rise
caused by testing. Application values may be calculated from the parameters’ temperature curves, the power
dissipated and the thermal response curve (Zθ ).
lightning surge
wave shape notation
Most lightning tests, used for equipment verification, specify a unidirectional sawtooth waveform which has an
exponential rise and an exponential decay. Wave shapes are classified in terms of peak amplitude (voltage
or current), rise time and a decay time to 50% of the maximum amplitude. The notation used for the wave
shape is amplitude, rise time/decay time. A 50A, 5/310 µs wave shape would have a peak current value of
50 A, a rise time of 5 µs and a decay time of 310 µs. The TISP surge current graph comprehends the wave
shapes of commonly used surges.
generators
There are three categories of surge generator type, single wave shape, combination wave shape and circuit
defined. Single wave shape generators have essentially the same wave shape for the open circuit voltage
and short circuit current (e.g. 10/1000 µs open circuit voltage and short circuit current). Combination
generators have two wave shapes, one for the open circuit voltage and the other for the short circuit current
(e.g. 1.2/50 µs open circuit voltage and 8/20 µs short circuit current) Circuit specified generators usually
equate to a combination generator, although typically only the open circuit voltage waveshape is referenced
(e.g. a 10/700 µs open circuit voltage generator typically produces a 5/310 µs short circuit current). If the
combination or circuit defined generators operate into a finite resistance the wave shape produced is
intermediate between the open circuit and short circuit values.
current rating
When the TISP switches into the on-state it has a very low impedance. As a result, although the surge wave
shape may be defined in terms of open circuit voltage, it is the current wave shape that must be used to
assess the required TISP surge capability. As an example, the CCITT IX K17 1.5 kV, 10/700 µs surge is
changed to a 38 A, 5/310 µs waveshape when driving into a short circuit. Thus the TISP surge current
capability, when directly connected to the generator, will be found for the CCITT IX K17 waveform at 310 µs
on the surge graph and not 700 µs. Some common short circuit equivalents are tabulated below:
STANDARD
OPEN CIRCUIT
VOLTAGE
SHORT CIRCUIT
CURRENT
CCITT IX K17
CCITT IX K20
RLM88
VDE 0433
FTZ R12
1.5 kV, 10/700 µs
1 kV, 10/700 µs
1.5 kV, 0.5/700 µs
2.0 kV, 10/700 µs
2.0 kV, 10/700 µs
38 A, 5/310 µs
25 A, 5/310 µs
38 A, 0.2/310 µs
50 A, 5/200 µs
50 A, 5/310 µs
Any series resistance in the protected equipment will reduce the peak circuit current to less than the
generators’ short circuit value. A 2 kV open circuit voltage, 50 A short circuit current generator has an
effective output impedance of 40 (2000/50). If the equipment has a series resistance of 25 then the
surge current requirement of the TISP becomes 31 A (2000/65) and not 50 A.
PRODUCT INFORMATION
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