TISP1072F3 Datasheet, PDF (1/17 Pages) Power Innovations Ltd – DUAL ASYMMETRICAL TRANSIENT VOLTAGE SUPPRESSORS

Copyright © 1997, Power Innovations Limited, UK
TISP1072F3, TISP1082F3
DUAL ASYMMETRICAL TRANSIENT
VOLTAGE SUPPRESSORS
SEPTEMBER 1993 - REVISED SEPTEMBER 1997
TELECOMMUNICATION SYSTEM SECONDARY PROTECTION
q Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
DEVICE
‘1072F3
‘1082F3
V_DRM
V
- 58
- 66
V_(BO)
V
- 72
- 82
q Planar Passivated Junctions
Low Off-State Current < 10 µA
q Rated for International Surge Wave Shapes
WAVE SHAPE
STANDARD
I_TSP
A
2/10 µs
FCC Part 68
80
8/20 µs
ANSI C62.41
70
10/160 µs
FCC Part 68
60
10/560 µs
FCC Part 68
45
0.5/700 µs
RLM 88
38
FTZ R12
50
10/700 µs
VDE 0433
50
CCITT IX K17/K20
50
10/1000 µs
REA PE-60
35
q Surface Mount and Through-Hole Options
D PACKAGE
(TOP VIEW)
T1
NC 2
NC 3
R4
8G
7G
6G
5
G _MDXXAE
NC - No internal connection
P PACKAGE
(TOP VIEW)
T1
8T
G2
7G
G3
R4
6G
5R
MDXXAF
Specified T terminal ratings require connection of pins 1 and 8.
Specified R terminal ratings require connection of pins 4 and 5.
SL PACKAGE
(TOP VIEW)
T
1
G
2
PACKAGE
Small-outline
Small-outline taped
and reeled
Plastic DIP
Single-in-line
PART # SUFFIX
D
DR
P
SL
R
3
device symbol
T
MDXXAG MD1XAA
R
q UL Recognized, E132482
description
These dual asymmetrical transient voltage
suppressors are designed for the overvoltage
protection of ICs used for the SLIC (Subscriber
Line Interface Circuit) function. The IC line driver
section is typically powered with 0 V and a
negative supply. The TISP1xxxF3 limits voltages
that exceed these supply rails and is offered in
two voltage variants to match typical negative
supply voltage values.
High voltages can occur on the line as a result of
exposure to lightning strikes and a.c. power
surges. Negative transients are initially limited by
breakdown clamping until the voltage rises to the
SD1XAA
G
Terminals T, R and G correspond to the
alternative line designators of A, B and C
breakover level, which causes the device to
crowbar. The high crowbar holding current
prevents d.c. latchup as the current subsides.
Positive transients are limited by diode forward
conduction. These protectors are guaranteed to
suppress and withstand the listed international
lightning surges on any terminal pair
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