CLP200M Datasheet, PDF (9/21 Pages) STMicroelectronics – OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE

Table 1 : Acceptance criteria and number of tests.
TEST ACCEPTANCE NUMBER TO TESTS
CRITERIA
2
A
10 for longitudinal A
10 for longitudinal B
and 10 for transversal
3a
A
5
3b
B
1
3
B
1 for each position of s
CLP200M
Fig. 15 : CLP200M response to a negative surge.
3.2. Ringing mode
3.2.1. Lightning simulation test
Lightning phenomena are the most common surge
causes. The purpose of this test is to check the ro-
bustness of the CLP200M against these lightning
strikes.
Fig. 13 : Lightning simulation test.
10/700µs
GENERATOR
+/- 4kV
I
4Ω
Rsense
Rp
TIPL
TIPS
1/2 CLP200M
GND
V
Figures 14 and 15 show that the remaining over-
voltage does not exceed +/- 260 V. The CLP200M
switches on within 0.7 µs and withstands the 100 A
given by the CCITT K20 generator.
Consequently,the CLP200M totally fulfills this test.
3.2.2 Power induction
(Test 3a and 3b table 2/K20)
Surges of long duration with medium voltage value
are mainly produced by the proximity of a sub-
scriber line with an AC mains line or equipment.
The purpose of this test is to checkthe robustness
of the CLP200M against these capacitive coupling
disturbances.
Fig. 16 : Power inductance test.
Fig. 14 : CLP200M response to a positive surge.
TEST
3a
3b
V(RMS)
300
300
R(Ω)
600
200
Duration
0.2s
?
9/21
®