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LCP150S Datasheet(PDF) 5 Page - STMicroelectronics

Part # LCP150S
Description  PROGRAMMABLE TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTION
PDF  6 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LCP150S Datasheet(HTML) 5 Page - STMicroelectronics

  LCP150S Datasheet HTML 1Page - STMicroelectronics LCP150S Datasheet HTML 2Page - STMicroelectronics LCP150S Datasheet HTML 3Page - STMicroelectronics LCP150S Datasheet HTML 4Page - STMicroelectronics LCP150S Datasheet HTML 5Page - STMicroelectronics LCP150S Datasheet HTML 6Page - STMicroelectronics  
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Typical SLIC Protection Concept.
APPLICATION CIRCUIT
RING
RELAY
RING GENERATOR
PTC
PTC
LINE A
LINE B
THBT200S
LCP150S
-V
BAT
SLIC
T
E
S
T
R
E
L
A
Y
220
nF
S
FUNCTIONAL DESCRIPTION
LINE A PROTECTION:
- For positive surges versus GND, the diode D1
will conduct.
- For negative surges versus GND, the protec-
tion device P1 will trigger at a voltage fixed by
the -VBAT reference.
LINE B PROTECTION:
- For surges on Line B, the operating mode is the
same , D2 or P2 is activated.
A capacitor (C = 220nF) can be added close to
the gate of the LCP15xx, in order to speed up
the triggering.
®
LCP150S
5/6



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