CLP200M_03 Datasheet, PDF (11/21 Pages) STMicroelectronics – OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE

Fig. 22 : CLP200M response to a positive surge.
3.3.2 Power induction test
(Test 3a and 3b, table 2/K20)
Fig. 24 : Power induction test.
CLP200M
I1
V(RMS)
50 Hz
4Ω
Rsense
TIPL
TIPS
1/2 CLP200M
GND
50
I2
Rp
-48V
V1
LCP1511D
SLIC
V2
TEST
3a
V_(RMS)
300
R(Ω)
600
Duration
0.2s
Figures 25 and 26 show that the maximum remain-
duct(s) ^{Fig. 23 : CLP200 M response to a negative surge.}
ing voltage does not exceed +2V for positive
surges and -55V for negative surges.
Consequently, the CLP200M totally fulfills this test.
The test duration is not specified in test 3b. If the
duration exceeds 5s we do suggest to follow the
soldering and mounting recommendations given
on page 17 of this document.
te ^{Pro Fig. 25 : Induction test behavior (Test 3a).}
roduct(s) ^{- Obsole} _{Figures 22 and 23 give the voltage and current be-}
P _{havior during positive and negative 4kV, 10/700µs,}
te ^{surge tests using a LCP1511D as second stage}
le ^{protection device. The firing threshold values are}
now adjusted to GND and to -Vbat (-48V) by the
o _{action of the second stage protection which acts as}
Obs ^{an external voltage reference.}
As shown on these figures, the maximum remain-
ing voltage does not exceed +2.5V for positive
surges and -60V for negative surges.
Consequently, the CLP200M totally fulfills this test.
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