tisp4a270h3bj Bourns, Inc., tisp4a270h3bj Datasheet

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tisp4a270h3bj

Manufacturer Part Number
tisp4a270h3bj
Description
Lcas R Line Protector
Manufacturer
Bourns, Inc.
Datasheet
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Rated for International Surge Wave Shapes
The TISP4A270H3BJ is an asymmetrical-bidirectional thyristor surge protective device (SPD). It is designed to limit the peak voltages on the
R
connected to the protective ground and terminal 2 (R) connected to the R
The TISP4A270H3BJ voltages are chosen to give R
condition is low level power cross when the switches are closed. Under this condition, the TISP4A270H3BJ limits the voltage and
corresponding LCAS dissipation until the LCAS thermal trip operates and opens the switches.
Under open-circuit ringing conditions, the R
larger peak negative voltage than positive, i.e. the peak voltages are asymmetric. The TISP4A270H3BJ has a similar voltage asymmetry which
will allow the maximum possible ringing voltage, while still giving protection. With a connected telephone line, the LCAS T
terminal voltage levels will be less than 50 % of the open-circuit R
bidirectional overvoltage protector of the TISP4xxxH3BJ series.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Optimized LCAS R
TISP4A270H3BJ V
-Break Switch, SW1 & SW2, Ratings
-Ring Return Switch, SW3, Rating
-Ringing Access Switch, SW4, Rating
-Switch Isolation Ratings
-Battery Voltage Range of -40 V to -60 V
-Power Fault Conditions
-Lightning Impulse Conditions
-LCAS Characteristic Temperature Range
TISP4A270H3BJ Designed for:
-Battery-Backed Ringing Circuits
APRIL 2002 - REVISED FEBRUARY 2005
Description
How to Order
LINE
TISP4A270H3BJ
Wave Shape
Voltage Swing ........................................... +148 V to -206 V
Temperature Range .................................. -40 °C to +85 °C
Device
‘4A270
(Ring Line) terminal of ‘7581/2/3 LCAS (Line Card Access Switch) devices. The TISP4A270H3BJ must have the bar-indexed terminal 1 (G)
............................................ UL Recognized Components
10/1000
Device
10/700
Allows ................. 103 V rms Ringing with -60 V Battery
2/10
(BO)
LINE
V
+160
-222
ITU-T K.20/45/21
GR-1089-CORE
GR-1089-CORE
DRM
V
BJ (SMB/DO-214AA with J-Bend)
Derived from:
Protector
Standard
V
+217
-270
(BO)
Package
V
I
PPSM
500
150
100
A
LINE
terminal will have high peak voltages. For battery backed ringing, the R
TISP4A270H3BJ LCAS R
LINE
terminal protection for all LCAS switch conditions. The most potentially stressful
R (Embossed Tape Reeled)
LINE
terminal values. So the T
Carrier
LINE
ASYMMETRICAL-BIDIRECTIONAL THYRISTOR SPD
terminal.
RING
SMB Package (Top View)
Device Symbol and Circuit Application
TIP
TISP4A270H3
AI4BITAMA
TISP4165H3
G
R
Termination Finish
TISP4A270H3BJR TISP4A270H3BJRS
For Standard
LINE
G
LINE
R
Order As
T
LINE
LINE
1
terminal can be protected by a symmetrical-
Protector
'7581 LCAS
R
RINGING
switch
return
Ringing
access
SW3
Ring
switch
SW4
Termination Finish
For Lead Free
2
T
Order As
RING ING
LINE
switch
R
Break
SW2
MD4A270B
TISP4A270H3BJ
LINE
terminal will have a
switch
Break
SW1
(Tip Line)
T
SD
T
F
V
R
V
LATCH
INPUT
D
BAT
GND
BAT
DD
BAT
GND

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tisp4a270h3bj Summary of contents

Page 1

... LCAS dissipation until the LCAS thermal trip operates and opens the switches. Under open-circuit ringing conditions, the R larger peak negative voltage than positive, i.e. the peak voltages are asymmetric. The TISP4A270H3BJ has a similar voltage asymmetry which will allow the maximum possible ringing voltage, while still giving protection. With a connected telephone line, the LCAS T terminal voltage levels will be less than the open-circuit R bidirectional overvoltage protector of the TISP4xxxH3BJ series ...

Page 2

... Peak overload on-state current during a.c. power cross tests of GR-1089-CORE and UL 1950/60950. These electrical stress levels may damage the TISP4A270H3BJ silicon chip. After test, the pass criterion is either that the device is functional or faulty, that it has a short circuit fault mode. In the short circuit fault mode, the following equipment is protected as the device is a permanent short across the line ...

Page 3

... TISP4A270H3BJ LCAS R Electrical Characteristics °C (Unless Otherwise Noted) Parameter Repetitive peak off +100 V and -200 V DRM D state current V Breakover voltage dv/dt = ±250 V/ms, R (BO) Ramp breakover dv/dt V (BO) voltage dv/dt = ±20 A/µs, Linear current ramp, Maximum ramp value = ± Breakover current dv/dt = ±250 V/ms, R ...

Page 4

... TISP4A270H3BJ LCAS R Parameter Measurement Information V DRM -v I DRM I (BO) V (BO) Quadrant III Switching Characteristic Figure 1. Voltage-Current Characteristic for R and G Terminal Pair All Measurements are Referenced to the G Terminal Protector LINE +i I PPSM I TSM DRM TSM I PPSM -i Customers should verify actual device performance in their specific applications ...

Page 5

... TISP4A270H3BJ LCAS R Typical Characteristics OFF-STATE CURRENT vs JUNCTION TEMPERATURE 100 V = ± 0·1 0·01 0·001 - Junction Temperature - °C J Figure 2. ON-STATE CURRENT vs ON-STATE VOLTAGE 200 150 ° 100 µs 100 1.5 1 0 ...

Page 6

... TISP4A270H3BJ LCAS R Rating and Thermal Information NON-REPETITIVE PEAK ON-STATE CURRENT vs CURRENT DURATION 600 Vrms, 50/60 Hz GEN R = 1.4*V 20 GEN GEN EIA/JESD51-2 ENVIRONMENT 15 EIA/JESD51-3 PCB ° 1.5 0· Current Duration - s Figure 6. Protector LINE TI4HAC 1.00 /I TSM(t) 0.99 0.98 0.97 0.96 0.95 0.94 0.93 100 1000 -40 Customers should verify actual device performance in their specific applications ...

Page 7

... TISP4A270H3BJ LCAS R Calculation of the TISP4A270H3BJ Voltage Values Figure 8 and the following text summarizes the derivation process for the TISP4A270H3BJ voltages. Details of the full process and other design aspects are covered by the document entitled TISP4A270H3BJ - Optimized ‘758x LCAS Overvoltage Protection. Calculation of R voltage parameters ...

Page 8

... Figure 9 shows a typical application circuit. Fuses F1 and F2 need high breaking capacity to safely interrupt 40 A rms (UL 60950) and 60 A rms (Telcordia GR-1089-CORE) currents from a 600 V rms source. The Bourns has UL recognition for these UL and Telcordia standards. The TISP4A270H3BJ is overload rated to carry currents rms for the time period that it takes the fuse to operate. ...

Page 9

... TISP4A270H3BJ LCAS R Recommended Printed Wiring Land Pattern Dimensions SMB Land Pattern MILLIMETERS DIMENSIONS ARE: (INCHES) Device Symbolization Code Devices will be coded as below. Terminal 1 is indicated by an adjacent bar marked on the package body. Carrier Information For production quantities, the carrier will be embossed tape reel pack. Evaluation quantities may be shipped in bulk pack or embossed tape. ...

Page 10

... TISP4A270H3BJ LCAS R SMB (DO-214AA) Plastic Surface Mount Diode Package This surface mount package consists of a circuit mounted on a lead frame and encapsulated within a plastic compound. The compound will withstand soldering temperature with no deformation, and circuit performance characteristics will remain stable when operated in high humidity conditions ...

Page 11

... TISP4A270H3BJ LCAS R Tape Dimensions SMB02 Package Single-Sprocket Tape 4.10 (.154 - .161 ) 2.05 (.077 - .081 8.10 (.311 - .319 ) Direction of Feed MILLIMETERS DIMENSIONS ARE: (INCHES) NOTES: A. The clearance between the component and the cavity must be within 0.05 mm (.002 in) MIN. to 0.65 mm (.026 in) MAX. so that the component cannot rotate more than 20 ° within the determined cavity. ...

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