LCDP1521RL STMicroelectronics, LCDP1521RL Datasheet - Page 7

• Manufacturer Part Number: LCDP1521RL
• Description: IC TVS DUAL PROGR SLIC 8SOIC
• Manufacturer: STMicroelectronics

Specifications of LCDP1521RL

• Technology: Programmable TVS
• Number Of Circuits: 2
• Applications: SLIC
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Voltage - Working: -
• Voltage - Clamping: -
• Other names: 497-6444-2; LCDP1521RL

LCDP1521
various country standards. Taking into account this fact, the actual lightning surge current
flowing through the LCDP is equal to:
With:
Example: For a line card with 60 Ω of series resistors, which has to be qualified under
GR-1089 Core 1000 V, 10/1000µs surge, the actual current through the LCDP1521 is equal
to:
The LCDP1521 is particularly optimized for the new telecom applications such as the fiber in
the loop, the WLL, and the remote central office. In this case the operating voltages are
smaller than in the classic system. This makes the high voltage SLICs particularly suitable.
The schematics of
Figure 7.
Line 1
Line 2
I
V
Rg = series resistor of the surge generator
Rs = series resistor of the line card (equivalent to PTC + R in
I
surge
surge
surge
= V
= 1000 / (10 + 60) = 14 A
= peak surge voltage imposed by the standard.
Protection of high voltage SLICs
surge
PTC or Fuse
PTC or Fuse
PTC or Fuse
PTC or Fuse
Figure 7
/ (Rg + Rs)
show the topologies most frequently used for these applications.
Doc ID 8627 Rev 4
R
R
R
R
LC D Pxxxx
Figure
Technical information
7)
-Vbat
TIP
RING
SLIC 1
SLIC 2
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