ST Life.augmented

LCDP1521S

Dual line programmable transient voltage suppressor for SLIC protection
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This device has been especially designed to protect 2 new high voltage, as well as classical SLICs, against transient overvoltages.

Positive overvoltages are clamped by 2 diodes. Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to -VBATthrough the gate. Separated gates allow the SLICs to be supplied by two different voltages.

pdf Please read
Errata Sheet
pdf Download
Datasheet

Key Features

  • Dual line programmable transient voltage suppressor with separated gates
  • Wide negative firing voltage range:VGn= -175 V max.
  • Low dynamic switching voltages: VFPand VDGL
  • Low gate triggering current: IGT= 5 mA max
  • Peak pulse current: IPP= 40 A (5/310 μs)
  • Holding current: IH= 150 mA min.
  • Benefits
  • A Trisil™ is not subject to ageing and provides a fail safe mode in short circuit for a better protection.
  • Trisils are used to help equipment to meet various standards such as UL1950, IEC 60950 / CSA C22.2, UL1459 and TIA-968-A (formerly FCC part 68).
  • Trisils have UL94 V0 resin approved (Trisils are UL497B approved - file: E136224).

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6477: Dual line programmable transient voltage suppressor for SLIC protection
2.0 100 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
2.0 318 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
LCDP1521S PSpice model (.lib) and symbols (.olb)
1.0 4 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**
LCDP1521SRLActiveUni-DirectionalSO-8Tape And Reel-.859Distributor reported inventory date: 2014-10-01
Distributor NameRegionStockMin. order
RUTRONIKOrder NowEUROPE50002500
MOUSEROrder NowWORLDWIDE21401
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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