TISPPBL2SD
PROGRAMMABLE OVERVOLTAGE PROTECTORS
FOR ERICSSON COMPONENTS PBL 3xxx SLICS
AUGUST 1999
Copyright © 1999, Power Innovations Limited, UK
OVERVOLTAGE PROTECTION FOR ERICSSON COMPONENTS LINE INTERFACE CIRCUITS
Overvoltage Protector‡ for:-
●
D PACKAGE
(TOP VIEW)
PBL 3762A
1
2
3
4
8
7
6
5
K1
G
NC
A
(Tip)
PBL 3764A/4, PBL 3764A/6
PBL 3766, PBL 3766/6
PBL 3767, PBL 3767/6
PBL 3796, PBL 3796/2
PBL 3798, PBL 3798/2
PBL 3798/5
(Ground)
(Ground)
(Gate)
NC
K2
A
NC
(Ring)
MD6XBA
NC - No internal connection
Terminal typical application names shown in
parenthesis
PBL 3798/6
PBL 3799
PBL 3860A/1, PBL 3860A/6
PBL 386 10/2
PBL 386 11/2
device symbol
K1
PBL 386 20/1
PBL 386 21/1
PBL 386 30/1
PBL 386 40/1
PBL 386 50/1
PBL 3898/M
A
A
G1,G2
Rated for International Surge Wave Shapes
●
I
TSP
WAVE SHAPE
STANDARD
K2
A
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
2/10 µs
1.2/50 µs
0.5/700 µs
10/700 µs
10/1000 µs
GR-1089-CORE
ITU-T K22
100
100
40
voltage, VGG, applied to the G terminal.
SD6XAP
I3124
ITU-T K20, K21
GR-1089-CORE
40
Small Outline Surface Mount Package
- Available Ordering Options
●
30
CARRIER
ORDER #
Single-Lead Line Connection Version of
Feed-Through TISPPBL2D
●
Tube
TISPPBL2SD
Taped and reeled TISPPBL2SDR
- Ground Lead Creepage Distance . . > 3 mm
description
The TISPPBL2S is a dual forward-conducting buffered p-gate overvoltage protector. It is designed to protect
the Ericsson Components PBL 3xxx family of SLICs (Subscriber Line Interface Circuits) against overvoltages
on the telephone line caused by lightning, a.c. power contact and induction. The TISPPBL2S limits voltages
that exceed the SLIC supply rail levels.
The SLIC line driver section is typically powered from 0 V (ground) and a negative voltage in the region of
-10 V to -85 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 ground referenced on-state condition. As the overvoltage
‡ Customers are advised to obtain the latest version of the relevant Ericsson Components SLIC information to verify, before placing orders, that
the information being relied on is current.
P R O D U C T
I N F O R M A T I O N
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.
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