TSI200B1 STMICROELECTRONICS [STMicroelectronics], TSI200B1 Datasheet - Page 5

• Manufacturer Part Number: TSI200B1
• Description: TERMINAL SET INTERFACE PROTECTION AND DIODE BRIDGE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

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
Part #1
Part #2
Fig. 5 : Voltage at the + and - terminations of the
TSI200B1, and current through it
while test part 1 is applied.
The TSIxxB1 withstand the AC power induction
test in both cases.
test conditions :
test conditions :
V
R = 600
t = 0.2 s
V
R = 600
t = 0.2 s
RMS
RMS
= 240 V
= 600 V
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
240V
long on the device under test. The CCITT K17
recommendation specifies an internal generator
impedance allowing 10 A
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.
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.
RMS
through a 10
RMS
PTC during 15 minutes
when in short circuit.
TSIxxB1
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