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LCP12

Protection IC for ringing SLICs
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The LCP12 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.

LCP12 can be used to help equipment to meet various standards such as UL1950, IEC 60950 / CSAC22.2, UL1459 and TIA-968-A. LCP12 pinout and clearance is compatible with UL60950. Resin meets UL94 V0.

LCP12 is UL497B approved - file: E136224.

The LCP12 associated with Epcos PTC model B59173C1130A151 is compliant with ITU TK20/K21 (4 kV lightning and AC power fault tests).

pdf Please read
Errata Sheet
pdf Download
Datasheet

Key Features

  • Protection IC recommended for ringing SLICs
  • Wide firing voltage range: -120 V to +120 V
  • Low gate triggering current: IG= 5 mA max
  • Peak pulse current: IPP= 50 A (10/1000 μs)
  • Holding current: IH= 150 mA min.

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6834: Protection IC for ringing SLICs
4.0 210 KB

Application Notes

Description Version Size
pdf
AN1220: Linecard protection by overvoltage and overcurrent with a CLP270M
1.3 242 KB
pdf
AN2053: SLIC protection for both classical and new networks
2.1 318 KB
pdf
AN2064: Compliance of series/parallel protections for Telecom CO
1.2 420 KB
pdf
AN2266: SLIC based system protection for European and Asian markets
2.1 241 KB
pdf
AN2456: Protection of single battery voltage SLICs for new networks in US market
1.1 611 KB
pdf
AN578: POWER CROSSING BEHAVIOUR OF LINE CAR PROTECTION
2.1 42 KB
pdf
AN579: PROTECTION CONCEPTS IN TELECOMMUNICATIONS EQUIPMENTS
2.1 62 KB
pdf
AN821: NEW LAYOUT INSULATION REQUIREMENT
2.2 34 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
zip
LCP12 PSpice model (.lib) and symbols (.olb)
1.0 3 KB

Sample & Buy

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Part Number Marketing StatusStand-off voltage (nom) DirectionalityPackagePacking TypeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
LCP12-150B1RLActiveBi-DirectionalSO-8WTape And Reel-1.196Distributor reported inventory date: 2014-12-18
Distributor NameRegionStockMin. order
AVNETOrder NowAMERICA15000
Farnell Element14Order NowEUROPE301
Ecopack2PDF
XML

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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