LCP22 Datasheet, PDF (1/10 Pages) STMicroelectronics – Protection IC for ringing SLICs

LCP22
Protection IC for ringing SLICs
62ZLGH
Features
• Protection IC recommended for ringing SLICs
• Wide firing voltage range: -120 V to +120 V
• Low gate triggering current: I_G = 5 mA max
• Peak pulse current: I_PP = 50 A (10/1000 µs)
• Holding current: I_H = 150 mA min.
Applications
• Dual battery supply voltage SLICs
• Central office (CO)
• Private branch exchange (PBX)
• Digital loop carrier (DLC)
• Digital subscriber line access multiplexer
(DSLAM)
• Fiber in the loop (FITL)
• Wireless local loop (WLL)
• Hybrid fiber coax (HFC)
• ISDN terminal adapter
• Cable modem
TM: Trisil is a trademark of STMicroelectronics
Datasheet − production data
Description
The LCP22 has been developed to protect SLICs
operating on both negative and positive battery
supplies, as well as high voltage SLICs. It
provides crowbar mode protection for both TIP
and RING lines. The surge suppression is
assumed for each wire by two thyristor structures,
one dedicated to positive surges the second one
for negative surges. Both positive and negative
threshold levels are programmable by two gates.
LCP22 can be used to help equipment to meet
various standards such as UL1950, IEC 60950 /
CSAC22.2, UL1459 and TIA-968-A. LCP22
pinout and clearance is compatible with UL60950.
A Trisil ™ meets UL94 V0.
The LCP22 associated with Epcos PTC model
B59173C1130A151 is compliant with
ITU TK20/K21 (4 kV lightning and AC power fault
tests).
Figure 1. Functional diagram
Line (TIP or RING)
Gn
Gp
GND
Line (RING or TIP)
Figure 2. Pin-out configuration
Gn
Line (TIP or RING)
NC
GND
Gp
GND
NC
Line (RING or TIP)
October 2014
This is information on a product in full production.
Doc ID025775 Rev 3
1/10
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