DESCRIPTION
The battery tracking TransClamp 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. For negative transient events, the TVS thyristor will crowbar or fire when the line voltage exceeds the gate reference voltage. 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 components. TC04A-2...
Semtech Corporation
