參數(shù)資料
型號(hào): CLP270M-TR
廠商: 意法半導(dǎo)體
英文描述: OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE
中文描述: 過(guò)壓和過(guò)流保護(hù)的電信線路保護(hù)
文件頁(yè)數(shù): 6/24頁(yè)
文件大?。?/td> 368K
代理商: CLP270M-TR
CLP270M
Fig. 5b:
Method to adjust the reference voltage
.
6/24
I
up to 4 fixed external voltage reference (V
Z1
to V
Z4
) (see fig. 5a, here-below).
I
external reference supplies, V
b1
and V
b2
(see fig. 5b, on next page).
2.4. Speech mode
In speech mode (Ring relay in position 1), the protection is provided by the combination of both CLP270M
and the external voltage reference device.
Innormalconditions,theworkingpointofthiscircuitislocatedinregion4of
A2
curve:theCLP270Misidle.
Whenasurgeoccursontheline,theexternalvoltagereferencedeviceclampsatGNDor-V
bat
respectively
for positive and negative surges.
This generates a current which is detected by R
sense
and causes the protection to act : the line is
short-circuited to GND.
RINGS
Rsense
1
2
Overvoltage
reference
(+/- 270 V)
Overvoltage
detector
Overcurrent
detector
OR
Overvoltage
reference
(+/- 270 V)
Overvoltage
detector
Overcurrent
detector
OR
TIPL
TIPS
RINGL
FS
GND
SW3 SW1
SW4 SW2
Rsense
1
2
Fuse
Fuse
TIP
RING
VB1
VB2
Rp
Rp
Rsense
Rp
1
2
Overvoltage
reference
(+/- 270 V)
Overvoltage
detector
Overcurrent
detector
OR
TIPL
TIPS
FS
SW3 SW1
Fuse
TIP
GND
-Vbat
voltage
reference
I
LG
V
LG
I
LG
V
A2
LG
4
5
6
V
REF1
-V
REF2
Fig. 6:
Switching by current during speech mode.
相關(guān)PDF資料
PDF描述
CLP30-200B1RL OVERVOLTAGE & OVERCURRENT PROTECTION FOR TELECOM LINE
CLP30-200B1 Overvoltage and Overcurrent Protection for Telcom Line(電信裝備的過(guò)壓和過(guò)流保護(hù))
CLT3-4BT6-TR CURRENT LIMITED OVER-VOLTAGE PROTECTED QUAD DIGITAL TERMINATION
CLT3-4B CURRENT LIMITED OVER-VOLTAGE PROTECTED QUAD DIGITAL TERMINATION
CLT3-4BT6 CURRENT LIMITED OVER-VOLTAGE PROTECTED QUAD DIGITAL TERMINATION
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