CLP200M STMicroelectronics, CLP200M Datasheet - Page 7

• Manufacturer Part Number: CLP200M
• Description: IC OVP/OCP TELECOM POWERSO-10
• Manufacturer: STMicroelectronics

Specifications of CLP200M

• Voltage - Working: 200V
• Technology: Mixed Technology
• Number Of Circuits: 2
• Applications: Telecommunications
• Package / Case: PowerSO-10 Exposed Bottom Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Voltage - Clamping: -

The choice of the switching-on current is function
of the R
In normal operating condition, only the negative
current of the signal is of interest. This current (typ-
ically below -150 mA) should not activate the pro-
tection device CLP200M. Therefore the level of
activation is to be chosen just above this limit (typi-
cally -200 mA). This level is adjusted through
R
Figures 7a and 7b enable the designers to choose
the right R
EXAMPLE :
The choice of R
triggering of -220 mA min and -320 mA max. In this
case, the positive triggering will be 180mA min and
280 mA max.
Fig. 7a and 7b : Switching-on current versus
R
SENSE
SENSE
500
300
200
100
500
300
200
100
3
3
Iswon @ 25°C (mA)
ISWON (mA)
.
.
SENSE
SENSE
resistors.
SENSE
value.
5
Rsense ( )
Rsense ( )
5
-20°C
Iswon min
negative
= 4
25°C
7
Iswon max
negative
75°C
ensures a negative
7
9
Iswon min
positive
9
11
Iswon min
positive
11
13
Fig. 9 : Operation limits and destruction zone of
the CLP200M.
2.5 . Failure Status
The CLP200M has an internal feature that allows
the user to get a Failure Status (FS) indication.
When the CLP200M is short-circuiting the line to
GND, a signal can be managed through pin 1. This
signal can be used to turn a LED on in order to pro-
vide a surge indication. It may also be used with a
logic circuitry to count the number of disturbances
appearing on the lines.
Fig. 8 : Failure Status circuit and diagnostic.
If a surge exceeding the maximum ratings of the
CLP200M occurs on the line, the device will fail in a
short-circuit state.
The figure 9 shows two different curves :
1000
FAILURE
STATUS
The
guaranted working limits of the CLP200M.
The upper curve shows the limit above which the
CLP200M is completely destructed . In this case,
the Fail Diagnostic pin is on.
100
10
0.01
Ipp (A)
lower
one
1k
0.1
+12V
indicates
1
t (ms)
Rsense
Rsense
CLP200M
1
the
CLP200M
maximum
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10