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PDF TISP70XXF3 Data sheet ( Hoja de datos )
| Número de pieza | TISP70XXF3 | |
| Descripción | LOW-VOLTAGE TRIPLE ELEMENT BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS | |
| Fabricantes | Bourns Electronic Solutions | |
| Logotipo |  |
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TISP7072F3,TISP7082F3
LOW-VOLTAGE TRIPLE ELEMENT BIDIRECTIONAL
THYRISTOR OVERVOLTAGE PROTECTORS
TISP70xxF3 (LV) Overvoltage Protector Series
Patented Ion-Implanted Breakdown Region
- Precise DC and Dynamic Voltages
Device
VDRM
V
V(BO)
V
‘7072F3
58
72
‘7082F3
66
82
Planar Passivated Junctions
Low Off-State Current..................................<10 µA
Rated for International Surge Wave Shapes
- Single and Simultaneous Impulses
Waveshape
Standard
ITSP
A
2/10
GR-1089-CORE
85
8/20
IEC 61000-4-5
80
10/160
FCC Part 68
65
10/700
FCC Part 68
ITU-T K.20/21
50
10/560
FCC Part 68
45
10/1000 GR-1089-CORE
40
............................................. UL Recognized Component
D Package (Top View)
T1
NC 2
NC 3
R4
8G
7 NU
6 NU
5G
NC - No internal connection.
NU - Non-usable; no external electrical connection should be
made to these pins.
Specified ratings require connection of pins 5 and 8.
SL Package (Top View)
T1
G2
R3
Device Symbol
T
MD1XAB
R
Description
The TISP7xxxF3 series are 3-point overvoltage protectors
designed for protecting against metallic (differential mode) and
simultaneous longitudinal (common mode) surges. Each terminal
pair has the same voltage limiting values and surge current
capability. This terminal pair surge capability ensures that the
protector can meet the simultaneous longitudinal surge
requirement which is typically twice the metallic surge
requirement.
Each terminal pair has a symmetrical voltage-triggered
thyristor characteristic. Overvoltages are initially clipped by
breakdown clamping until the voltage rises to the breakover
level, which causes the 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.
SD7XAB
G
Terminals T, R and G correspond to the
alternative line designators of A, B and C
How To Order
Device
Package
TISP70xxF3 D, Small-Outline
TISP70xxF3 SL, Single-in-Line
Carrier
Tape and Reel
Tube
Tube
For Standard
Termination Finish
Order As
TISP70xxF3DR
TISP70xxF3D
TISP70xxF3SL
For Lead Free
Termination Finish
Order As
TISP70xxF3DR-S
TISP70xxF3D-S
TISP70xxF3SL-S
DataSheet4 U .com
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
MARCH 1994 - REVISED MARCH 2006
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
1 page  
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TISP70xxF3 (LV) Overvoltage Protector Series
Typical Characteristics - R and G, or T and G Terminals
OFF-STATE CURRENT
vs
100
JUNCTION TEMPERATURE
TC7LAC
10
NORMALIZED BREAKDOWN VOLTAGES
vs
JUNCTION TEMPERATURE
TC7LAE
1.2
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
1.1
V(BR)M
1.0
0.9
-25
V(BO)
V(BR)
Normalized to V(BR)
I(BR) = 1 mA and 25 ° C
Positive Polarity
0 25 50 75 100 125
TJ - Junction Temperature - °C
Figure 3.
150
NORMALIZED BREAKDOWN VOLTAGES
vs
JUNCTION TEMPERATURE
TC7LAF
1.2
OFF-STATE CURRENT
vs
ON-STATE VOLTAGE
100
Positive Polarity
TC7LAL
1.1
V(BO)
1.0
V(BR)M
V(BR)
Normalized to V(BR)
I(BR) = 1 mA and 25 °C
Negative Polarity
0.9
-25 0 25 50 75 100 125 150
TJ - Junction Temperature - °C
Figure 4.
DataSheet4 U .com
10
150 °C
25 °C
-40 °C
1
1 2 13 4 5 6 7 8 9 0
VT - On-State Voltage - V
Figure 5.
MARCH 1994 - REVISED MARCH 2006
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
5 Page 
www.DataSheet4U.com
TISP70xxF3 (LV) Overvoltage Protector Series
APPLICATIONS INFORMATION
Deployment
These devices are three terminal overvoltage protectors. They limit the voltage between three points in the circuit. Typically, this would be the
two line conductors and protective ground (Figure 17).
Th3
Th1
Th2
Figure 17. MULTI-POINT PROTECTION
In Figure 17, protective functions Th2 and Th3 limit the maximum voltage between each conductor and ground to their respective ±V(BO)
values. Protective function Th1 limits the maximum voltage between the two conductors to its ±V(BO) value.
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 rise time in microseconds and a decay time in microseconds to 50% of the
maximum amplitude. The notation used for the wave shape is rise time/decay time, without the microseconds quantity and the “/” between the
two values has no mathematical significance. A 50 A, 5/310 waveform 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 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 open circuit voltage and 8/20 short circuit current). Circuit specified generators usually equate to a combination generator,
although typically only the open circuit voltage wave shape is referenced (e.g., a 10/700 open circuit voltage generator typically produces a 5/
310 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.
ITU-T 10/700 Generator
This circuit defined generator is specified in many standards. The descriptions and values are not consistent between standards and it is
important to realize that it is always the same generator being used.
Figure 18 shows the 10/700 generator circuit defined in ITU-T recommendation K.20 (10/96) “Resistibility of telecommunication switching
equipment to overvoltages and overcurrents”. The basic generator comprises of:
Capacitor C1, charged to voltage VC, which is the energy storage element.
Switch SW to discharge the capacitor into the output shaping network.
Shunt resistor R1, series resistor R2 and shunt capacitor C2 form the output shaping network.
Series feed resistor R3 to connect to one line conductor for single surge.
Series feed resistor R4 to connect to the other line conductor for dual surging.
In the normal single surge equipment test configuration, the unsurged line is grounded. This is shown by the dotted lines in the top drawing of
Figure 18. However, doing this at device test places one terminal pair in parallel with another terminal pair. To check the individual terminal
pairs of the TISP7xxxF3, without any paralleled operation, the unsurged terminal is left unconnected.
With the generator output open circuit, when SW closes, C1 discharges through R1. The decay time constant will be C1 R1, or
20 x 50 = 1000 µs. For the 50 % voltage decay time, the time constant needs to be multiplied by 0.697, giving 0.697 x 1000 = 697 µs which is
rounded to 700 µs.
MARCH 1994 - REVISED MARCH 2006
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
DataSheet4 U .com
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