Spotlight II

Customized TISP® Pairs For
Solid State Relay (LCAS)
Protection
15 V, 30 V & 40 V TISP® To
Protect High-frequency Digital
Telecom Lines
Features
Our new TISP4125x3BJ & TISP4219x3BJ are coordinated pairs of protectors designed to protect Solid State Relays. Solid State Relays are
used in line card applications where conventional electro-mechanical
relays are not suitable, and may also be referred to as LCAS (Line Card
Access Switches). LCAS have more precise protection needs than
electro-mechanical relays, requiring reduced voltage limiting to protect
between switch terminals and from the terminals to ground.
These surface mount SMB packaged devices are designed to be used
as a protector pair, protecting the line side of the LCAS for battery
backed, ground backed and balanced ringing configurations. These two
separate devices need to have different protection voltages to allow the
system and ringing signal to pass below the protection level, while minimizing stress on the SLIC.
Features
We are proud to announce six low-voltage TISP® telecom protectors, developed using our new low-voltage Thyristor process, which allows us to produce
devices with lower & more precisely controlled voltages than ever before. Each
device provides 2-point protection and is typically used for the protection of
transformer windings and low-voltage electronics.
• Designed to Protect Solid State
Relays (LCAS)
- e.g. Agere (Lucent) or Clare
‘7581, ’7582, ‘7583
- Intersil™ ISL5571A
• Customized voltages for LCAS
TSP
Device
- Ground-backed ringing
10/1000 C
V
(V)
V
(V)
TISP4015L1BJR
8
15
30
23
TISP4030L1BJR
15
30
30
22
TISP4040L1BJR
25
40
30
18
TISP4015H1BJR
8
15
100
65
TISP4030H1BJR
15
30
100
50
TISP4040H1BJR
25
40
100
47
DRM
(BO)
off
(A) (pF)
(87 VRMS)
- Battery-backed ringing
(101 VRMS)
• 50 A & 100 A 10/1000 surge
ratings available
• Detailed applications information
At room temperature, a typical LCAS has a voltage rating of 320 V
between the switch terminals, and from the switch terminals to the logic
control circuitry. The TISP4219x3BJ protects to a maximum of 219 V from the Ring line to ground, and the
TISP4215x3BJ protects to a maximum of 125 V on the Tip line while still allowing the battery and ringing signals to
pass. During normal system operation, this combination of TISP® devices allows system levels of ±100 V on the Tip
line and ±180 V on the Ring line to pass without clipping.
These devices are available with
either 50 A "M" rated or 100 A "H"
rated 10/1000 surge guarantees.
The TISP4xxxH3BJ devices are
intended to protect applications with
minimal series co-ordination resistTISP4125M3
ance, while the TISP4xxxM3BJ are
RING
SLIC
OR
RELAY
RELAY
intended for applications where
TISP4125H3
TIP
additional co-ordination resistance
OVERCURRENT
Th3
such as a Multifuse, PTC or Line
Th1
SW1
SW3
PROTECTION
SLIC
Feed Resistor is used.
SW2
CONTROL
LOGIC
SW4
RING
GENERATOR
Device
Standoff Voltage
V
(V)
DRM
TISP4125M3BJR
100
Protection Voltage
V
(V)
TX1
FUSE
TX2
RECEIVE
RX1
FUSE
(BO)
125
TISP4125H3BJR
TISP4219M3BJR
50
TISP4219H3BJR
bourns.com • toll free (877) 4-BOURNS
219
50
surge for minimum SLIC stress
• Specified to allow compliance
with Telcordia GR1089-CORE
Positive overvoltages are clipped 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 protection will crowbar
into a low-voltage on-state condition. As the current subsides, the high crowbar holding current prevents DC latch up.
If you are using a high-voltage ringing SLIC such as the Legerity™ 79R241 or the Infineon PEB series, the
TISP61089B is the ideal overvoltage protection solution. The TISPPBL3 is matched to the requirements of the
Ericsson Microelectronics PBL series SLICs.
We invite you to request your free samples and datasheets with the prepaid card enclosed.
Typical Application
OVER
CURRENT
PROTECTION
RING TEST
PROTECTION
TIP
WIRE
TEST
RELAY
RING
RELAY
SLIC
RELAY
SLIC
PROTECTOR
S3a
Th1
R1a
S1a
SLIC
Th4
S2a
Th3
TISP4015L1BJR
We invite you to request your free samples and
datasheets with the prepaid card enclosed.
R1b
Th2
RING
WIRE
TISP3xxxF3
OR 7xxxF3
Th5
TISPPBL3 /
TISP61089B
S3b
S1b
S2b
VBATH
Single Bidirectional TISP Now
Available In 25% SMAller Package
We have extended our single bidirectional range even further by adding the
SMA (DO-214AC) package option, offering designers a potential 25% space
saving over the existing SMB (DO214AA) package. The new SMA packaged devices use the "AJR" delivery
option suffix. We invite you to request
your free sample and datasheets with
the prepaid card enclosed.
TIP
RING
TISP® Telecom Overvoltage Protectors
• Low voltage overshoot under
®
LCAS
Terminal
100
high-voltage ringing SLICs
The protector’s gate terminal is typically connected to the negative supply rail of the SLIC. This references the protection voltage to the negative supply voltage. The protector tracks the negative supply voltage to
minimize overvoltage stress on the SLIC.
4B04B-524-400
100
180
- T1/E1
• Programmable to –170 V for
RX2
If you interested in providing optimum protection for your LCAS, we
invite you to request your free
datasheet and coordinated pair of
samples with the prepaid card
enclosed.
10/1000
Surge Rating
(A)
• Applications include:
These devices feature ultra low capacitance
that is guaranteed at all anticipated system levels, making them ideal for high data-rate digital
applications. They also benefit from symmetrical capacitance between two quadrants of the
thyristor structure, ensuring critical line balance
on the copper lines.We are currently the only
manufacturer to specify both typical and maximum junction capacitance under bias and nobias conditions making circuit design and system performance predictable.
TRANSMIT
BASE
STATION
RECEIVER
TISP4015H1BJR
TISP4219M3
OR
TISP4219H3
- (18pF for L Series)
This new family of devices
- S interface ISDN & HDSL
offers working voltages
- Home PNA
(VDRM ) as low as 8 V, with
a narrow 15 V protection
voltage (V(BO)), making the TISP4015L1BJR and TISP4015H1BJR
ideally suited to T1/E1 applications. The family also offers higher
working/protection voltage windows of 15/30 V and 25/40 V for
higher voltage applications. Two different lightning surge ratings
are available, the TISP40xxH1BJR series are rated at 100 A
10/1000, and the TISP40xxL1BJR offer a 30 A 10/1000 guarantee.
The 100 A TISP40xxH1BJRs are perfect for external building
applications which need to meet ITU-T and
GR-1089 CORE requirements.
Th4
RING
• Low capacitance
Typical Application Circuit
Typical Application Circuit
Th2
Features
As ringing SLIC technology progresses, higher ringing voltages need to
be generated to allow the SLIC to drive longer lines. The TISP61089B
and TISPPBL3 have been developed to protect SLICs that can generate ringing voltages of up to 85 Vrms, requiring a maximum supply voltage of -170 V.
- U interface ISDN & Pair Gain
I
protection
included in the data sheet
BOURNS
4B06B-522-200
Programmable Ringing
SLIC Protection to –170 V
2
bourns.com • toll free (877) 4-BOURNS
TEST
EQUIPMENT
C1
220 nF
RING GENERATOR
Features
• Space saving - 25% smaller
SLIC
than existing SMB package
Manufacturer
RECOMMENDED CIRCUIT PROTECTION
Series
Overvoltage
Overcurrent
• 18 protection voltage variants rated for 50 A 10/1000
• 15 protection voltage variants rated for 30 A 10/1000
Ericsson
PBL 3 Series
Legerity™
ISLIC™ 79R241, 79R101, 79R100
Infineon
SLIC-P PEB 4265
TISPPBL3
4B04B-524-400
TISP61089B
4B04B-524-400
3
TISP® Telecom Overvoltage Protectors
4
bourns.com • toll free (877) 4-BOURNS
TISP® Telecom Overvoltage Protectors
Insulation Overvoltage Protection
with TISP4x00F3LM and
TISP3x00F3SL
TISP8200M and TISP8201M,
± 90 V Dual-Supply SLIC
Protectors
New Product Bulletin • Volume 2
Features
These devices are designed to limit overvoltages on telecom network connections in powered IT equipment (e.g. Surge Bars). This
extends equipment life and allows compliance with UL 1950 /
UL 60950 (also known as IEC 60950, EN 60950 and
CSA 22.2 No.950).
The TISP8200M and TISP8201M are a complementary pair of programmable protectors, designed to protect ringing SLICs with dualpolarity supply rails. Both devices feature two high-gain, robust
transistor buffers and reverse polarity blocking thyristor sections.
The protection function has been deliberately split into positive and
negative devices to minimize voltages under +ve and –ve surges.
Both devices are supplied in 8-pin small outline packages.
• Designed for Surge Bar
applications
• Insulation overvoltage to assist
compliance with UL 1950 /
The ‘950 family of standards have certain requirements for equipment with incoming lines of telecom network voltage (TNV). Any
protector from a TNV conductor to protective ground must have a
voltage rating which is at least 1.6 times the equipment rated supply voltage. The intent is to prevent the possibility of the a.c. mains
supply voltage from feeding into the telecommunication network
and creating a safety hazard. International and European equipment usually have a maximum rated voltage of 230, 240 or
250 Vrms. Multiplying 250 V by 1.6 gives a protector VDRM of
400 V. The TISP4600F3 will protect a single line to ground, while
the dual-configuration TISP3600F3 allows protection of two lines to
ground.
UL 60950
• Can be used individually or
TISP820xM
Overvoltage Conditions
breakdown from 600 V to
over 2000 V
C2
100 nF
wave shapes including
CG1089-CORE, FCC Part 68,
IG
IEC6100-4-5 and ITU-T K.20/21
420
600
840
500
TISP4600F3
700
1000
protection
IG
VBATH
TIP
420
C1
100 nF
0V
Bat
protect high-frequency digital telecom lines.
and negative (VBATH) battery voltages.
A complementary pair of devices is
required to adequately protect to within these levels. (See Circuit).
SMAller package
Single bidirectional
TISP® now available in
25% SMAller package.
Bat
Gnd
Bat
Ring
TISP8201M
Gnd
Bat
Ring
The negative TISP8200M has a conventional holding current (I H) of
–150 mA. Unique processing has
allowed a much lower IH of +25 mA on
the positive TISP8201M - as little or no
short-circuit line current is available in
this polarity.
4
These devices are ideally suited for
the latest generation of dual-supply
SLICs
such
as
the
Infineon
PEB4264/5 or the Legerity™ 79R251.
5
500
SLIC Protection
TISP8200M
R
Insulation Overvoltage
We invite you to request your free
samples and datasheet with the prepaid card enclosed.
70
0
6
V
TISP® Telecom Overvoltage Protectors
TISP8200M &
TISP8201M
Positive and Negative
Bourns Sales Offices/Technical Assistance
R
Polarity Dual-Supply
Region
Phone
Fax
The Americas
+1 - 909-781-5500
+1 - 909-781-5700
5
bourns.com • toll free (877) 4-BOURNS
TISP3x00F3SL &
TISP4x00F3LM
Protection
600
700
TISP61089B &
TISPPBL3
Programmable Ringing
T
TISP4700F3
TISP40xxL1BJ &
H1BJ
15 V, 30 V & 40 V TISP® to
TIP
1200
G
3
Manufacturers of new generation
dual-supply SLICs carefully specify
the maximum voltages allowed on Tip
and Ring relative to positive (VBATR)
IK
V(BO)
14
00
V
Solid State Relay (LCAS)
TISP
8200M
Package/Symbol
1400
Customized TISP® pairs for
included in datasheet.
SLIC
T
TISP4125x3BJ &
TISP4219x3BJ
IA
Gnd
TISP3700F3
2
• Extensive applications information
0V
TISP
8201M
Gnd
TISP3600F3
• Low battery loading, 5 mA
requirements.
T&R
VDRM
ing, guaranteed from -40 to 85°C.
VBATR
We invite you to request your free sample and datasheets with the prepaid card enclosed.
V(BO)
• High 45 A 10/1000 µs surge rat-
guaranteed to within SLIC
TIP
VDRM
Bourns® TISP® range extended with
over 50 brand new solutions
battery voltages of up to ± 90 V.
• Dynamic protection voltages
• Rated for international surge
RING
Device
• Protects dual-supply SLICs with
under a.c.
combined to limit insulation
Systems not connected directly to ground (or left floating) are vulnerable to transients, resulting in high-voltages
and subsequent insulation breakdown. The TISP4700F3 and TISP3700F3 are designed to limit the insulation
stress by at least 700 V. The TISP3700F3 connected across its T and R terminals (ground left unconnected)
increases the insulation voltage to 1400 V. Similarly, 2 x TISP4700F3s connected in series will allow insulation
testing of 2000 V (1400 Vrms).
T&G, R&G
Features
bourns.com • toll free (877) 4-BOURNS
TISP® Telecom Overvoltage Protectors
SLIC Protection
6
bourns.com • toll free (877) 4-BOURNS
TISP® Telecom Overvoltage Protectors