CO
M
PL
IA
NT
TISP9110LDM
INTEGRATED COMPLEMENTARY BUFFERED-GATE SCRS
FOR DUAL POLARITY SLIC OVERVOLTAGE PROTECTION
*R
oH
S
TISP9110LDM Overvoltage Protector
High Performance Protection for SLICs with +ve and -ve
Battery Supplies
– Wide -110 V to +110 V Programming Range
– Low 5 mA max. Gate Triggering Current
– Dynamic Protection Performance Specified for
International Surge Waveshapes
Applications include:
– Wireless Local Loop
– Access Equipment
– Regenerated POTS
– VOIP Applications
Rated for International Surge Wave Shapes
Wave Shape
2/10
10/700
10/1000
Standard
GR-1089-CORE
ITU-T K.20/21/45
GR-1089-CORE
I
PPSM
A
100
45
30
8-SOIC (210 mil) Package (Top View)
(Tip or Ring) Line
(-V
(BAT)
)
(+V
(BAT)
)
G1
G2
1
2
3
4
8
7
6
5
NC
Ground
Ground
NC
(Ring or Tip) Line
NC - No internal connection
Terminal typical application names shown in
parenthesis
MD-8SOIC(210)-003-a
Device Symbol
Line
............................................... UL Recognized Component
G1
G2
Description
The TISP9110LDM is a programmable overvoltage protection
device designed to protect modern dual polarity supply rail
ringing SLICs (Subscriber Line Interface Circuits) against
overvoltages on the telephone line. Overvoltages can be caused
by lightning, a.c. power contact and induction. Four separate
protection structures are used; two positive and two negative to
provide optimum protection during Metallic (Differential) and
Longitudinal (Common Mode) protection conditions in both
polarities. Dynamic protection performance is specified under
typical international surge waveforms from Telcordia GR-1089-
CORE, ITU-T K.44 and YD/T 950.
Ground
Line
SD-TISP9-001-a
The TISP9110LDM is programmed by connecting the G1 and G2
gate terminals to the negative (-V
(BAT)
) and positive (+V
(BAT)
)
SLIC Battery supplies respectively. This creates a protector operating at typically +1.4 V above +V
(BAT)
and -1.4 V below -V
(BAT)
under a.c.
power induction and power contact conditions. The protector gate circuitry incorporates 4 separate buffer transistors designed to provide
independent control for each protection element. The gate buffer transistors minimize supply regulation issues by reducing the gate current
drawn to around 5 mA, while the high voltage base emitter structures eliminate the need for expensive reverse bias protection gate diodes.
The TISP9110LDM is rated for common surges contained in regulatory requirements such as ITU-T K.20, K.45, Telcordia GR-1089-CORE,
YD/T 950. By the use of appropriate overcurrent protection devices such as the Bourns
®
Multifuse
®
and Telefuse
™
devices, circuits can be
designed to comply with modern telecom standards.
How To Order
For Lead Free
Termination Finish
Order As
TISP9110LDMR-S
Device
TISP9110LDM
Package
8-SOIC (210 mil)
Carrier
Embossed Tape Reeled
Marking Code
9110L
Standard Quantity
2000
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
AUGUST 2004 – REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
