CLP200M STMicroelectronics, CLP200M Datasheet - Page 5

• 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: -

In ringing mode (Ring relay in position 2), the only
protection device involved is the CLP200M.
In normal conditions, the CLP200M operates in re-
gion 1 of A1 curve, and is idle.
If an overvoltage occuring between TIP (or RING)
and GND reaches the internal overvoltage
refe-rence (+/- 215V), the CLP200M acts and the
line is short-circuited to GND. At this time the oper-
ating point moves to region 2 for positive surges
(region 3 for negative surges). Once the surge cur-
rent disappears, the device returns to its initial
state (region 1).
2.3 Ringing mode
Fig. 4 : Switching by voltage during ringing mode.
Fig. 5a : Method to adjust the reference voltage.
TIP
Fuse
TIP
RING
FS
I
LG
SW3 SW1
Fuse
Fuse
FS
TIPL
OR
R sense
Overcurrent
detector
SW3 SW1
SW4 SW2
Overvoltage
detector
TIPL
RINGL
TIPS
OR
OR
R sense
R sense
1/2 CLP200M
Overcurrent
Overcurrent
Overvoltage
(+/- 215 V)
reference
detector
detector
GND
Overvoltage
Overvoltage
detector
detector
V
LG
TIPS
RINGS
Rp
Overvoltage
Overvoltage
(+/- 215 V)
(+/- 215 V)
reference
reference
1
2
V
For surges occuring between TIP and RING, the
CLP200M acts in the same way. This means that
the CLP200M ensures a tripolar protection.
When used alone, the CLP200M acts at the inter-
nal overvoltage reference level (+/- 215V). Fur-
thermore, it is possible to adjust this threshold level
to a lower voltage by using :
.
Z4
up to 4 fixed external voltage reference (V
) (see fig.5a).
GND
-215
VZ3
VZ4
VZ1
VZ2
3
I
LG
Rp
Rp
2
1
1
2
1
2
CLP200M
+215
A1
Z1
V
5/21
LG
to