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PDF TSI62B1 Data sheet ( Hoja de datos )

Número de pieza TSI62B1
Descripción TERMINAL SET INTERFACE PROTECTION AND DIODE BRIDGE
Fabricantes STMicroelectronics 
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®
Application Specific Discretes
A.S.D.
TSIxxB1
TERMINAL SET INTERFACE
PROTECTION AND DIODE BRIDGE
MAIN APPLICATION
Telecom equipment requiring combined
protection against transient overvoltages and
rectification by diode bridge :
Telephone set
Base station for cordless set
Fax machine
Modem
Caller Id equipment
Set top box
DESCRIPTION
The TSIxxB1 provides the diode bridge and the
crowbar protection function that can be found in
most of telecom terminal equipment.
Integrated monolithically within a SO8 package,
this ASDdevice allows space saving on the
board and greater reliability.
FEATURES
STAND-OFF VOLTAGE FROM 62V TO 265V
PEAK PULSE CURRENT : 30 A (10/1000 µs)
MAXIMUM DC CURRENT : IF = 0.2 A
HOLDING CURRENT :150 mA
IN ACCORDANCE WITH THE FOLLOWING
STANDARDS :
CCITT K17 - K20 10/700 µs
5/310 µs
1.5 kV
38A
VDE 0433
10/700 µs
2 kV
5/310 µs
40A(*)
CNET
0.5/700 µs
1.5 kV
0.2/310 µs
38A
Bellcore
TR-NWT-000974: 10/1000 µs
10/1000 µs
1 kV
30A(*)
FCC Part 68
2/10 µs
2/10 µs
2.5 kV
75A (*)
MIL STD883C Method 3015-6
(*) with series resistor or PTC.
TM: ASD is trademarks of SGS-THOMSON Microelectronics.
January 1998 - Ed: 3
SO8
SCHEMATIC DIAGRAM
18
27
36
45
BENEFITS
Diode bridge for polarity guard and crowbar
protection within one device.
Single chip for greater reliability
Reduces component count versus discrete
solution
Saves space on the board
1/9

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TSI62B1 pdf
TEST # 2
AC POWER INDUCTION TEST
This test simulates the induction phenomena that
can happen between telecom lines and AC mains
lines (fig. 4).
Fig. 4 : AC power induction test circuit
TSIxxB1
TEST #3
AC POWER CONTACT TEST
This test simulates the direct contact between the
telecom lines and the AC mains lines.
The AC power contact test consists in applying
240VRMS through a 10PTC during 15 minutes
long on the device under test. The CCITT K17
recommendation specifies an internal generator
impedance allowing 10 ARMS when in short circuit.
The behavior of the TSI200B1 with respect to this
surge is given in figure 6.
Fig. 6 : Voltage at the TSI200B1 + & - terminations
and the current through it.
Part #1
test conditions :
Part #2
test conditions :
VRMS = 240 V
R = 600
t = 0.2 s
VRMS = 600 V
R = 600
t = 0.2 s
Fig. 5 : Voltage at the + and - terminations of the
TSI200B1, and current through it
while test part 1 is applied.
The figure 6 shows that after 250ms there is no
current anymore flowing through the TSI200B1
device. This is due to the action of the serial PTC
that limits the current through the line. This PTC is
mandatory for this test. It can also be replaced by a
fuse or any other serial protection that "opens" the
line loop under AC contact test.
The TSIxxB1 withstand the AC power induction
test in both cases.
5/9

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