TC04A-200 Datasheet | SEMTECH

Battery Tracking Trans Clamp™ For SLIC Linecard Protection PROTECTION PRODUCTS Description The battery tracking Trans Clamp series of transient voltage suppressors (TVS) are designed to protect subscriber line interface circuit (SLIC) from transient voltages resulting from lightning strikes and AC power line disturbances. The TC04A-200 integrates all the ponents necessary to protect SLIC ICs from line to ground for positive and negative transients. For negative transient events, the TVS thyristor will crowbar or “fire” when the line voltage exceeds the gate reference voltage. The gate voltage is referenced to the battery voltage ( -VBAT ) plus the VF of the series rectifier. The device firing voltage range is -5V to -100V. For positive transients, the surge-rated rectifiers will be forward biased, shunting the current to ground. An external capacitor is used to aid in gate triggering during fast rise time transients. The device may be used to protect any SLIC including those with integrated ring generators. These devices are designed to meet industry standard transient immunity requirements such as Bellcore TRNWT-001089, FCC Part 68, ITU K17-K20, and IEC 61000-4-5. The integrated design saves board space and increases equipment reliability by replacing multiple discrete ponents. PRELIMINARY Features u Transient protection for telemunications lines to u u u u u u u Bellcore 1089 (long haul), VDE 0433, ITU K20 IEC 61000-4-5 (Lightning), and FCC Part 68 High surge current rating (100A, tp = 10/1000µs) Protects up to four Tip & Ring line pairs Gate firing voltage is referenced to the system battery voltage Wide firing voltage range: -5V to -100V High holding current: 200m A Replaces multiple discrete ponents Solid-state TVS process technology Mechanical Characteristics u JEDEC SO-16 WB package u Molding pound flammability rating: UL 94V-0 u Marking : Part number, date code, logo u Packaging : Tube or Tape and Reel per EIA 481 Applications u u...