參數(shù)資料
型號(hào)： LCP1521SRL
英文描述： PROGRAMMABLE TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTION
中文描述： 可編程瞬態(tài)電壓抑制器保護(hù)的用戶(hù)接口
文件頁(yè)數(shù)： 1/7頁(yè)
文件大小： 141K
代理商： LCP1521SRL
1/7
Application Specific Discretes
A.S.D.
LCP1511D
PROGRAMMABLE TRANSIENT VOLTAGE
SUPPRESSOR FOR SLIC PROTECTION
n
DUAL PROGRAMMABLE TRANSIENT SUP-
PRESSOR.
n
WIDE NEGATIVE FIRING VOLTAGE RANGE :
V
MGL
= -80V max.
n
LOW DYNAMIC SWITCHING VOLTAGES :
V
FP
and V
DGL
.
n
LOW GATE TRIGGERING CURRENT :
I
GT
= 5mA max.
n
PEAK PULSE CURRENT :
I
PP
= 30A for 10/1000
μ
s surge.
n
HOLDING CURRENT :
I
H
= 150mA.
DESCRIPTION
FEATURES
SO-8
This device has been especially designed to pro-
tect subscriber line card interfaces (SLIC) against
transient overvoltages.
Positive overloads are clipped with 2 diodes. Neg-
ative surges are suppressed by 2 thyristors, their
breakdown voltage being referenced to
-V
BAT
through the gate.
This
component presents
trigge-ring current (I
GT
) in order to reduce the cur-
rent consumption on printed circuit board during
the firing phase.
A particular attention has been given to the internal
wire bonding. The “4-point” configuration ensures
reliable protection, eliminating the overvoltage in-
troduced by the parasitic inductances of the wiring
(Ldi/dt), especially for very fast transients.
a
very
low
gate
October 2003 - Ed: 4
SCHEMATIC DIAGRAM
GND
GND
TIP
TIP
RING
RING
1
2
3
4
5
6
7
8
GATE
NC
CCITT K20 :
10/700
μ
s
5/310
μ
s
10/700
μ
s
5/310
μ
s
1.2/50
μ
s
1/20
μ
s
0.5/700
μ
s
0.2/310
μ
s
2/10
μ
s
2/10
μ
s
1kV
25A
2kV
38A (*)
1.5kV
40A
1kV
25A
2.5kV
170A (*)
VDE 0433 :
VDE 0878 :
I3124 :
FCC part 68 :
BELLCORE
TR-NWT-001089 :
2/10
μ
s
2.5kV
170A (*)
2/10
μ
s
(*) with series resistors or PTC.
COMPLIES WITH THE FOLLOWING STANDARDS
TM: ASD is trademarks of STMicroelectronics.
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