Product Summary

The LCP1114FBD48 is a programmable transient voltage suppressor designed to protect subscriber line card interfaces (SLIC) against transient overvoltages. Positive overloads are clipped with 2 diodes. Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to VBAT through the gate. The LCP1114FBD48 presents a very low gate triggering current (IGT) in order to reduce the current con-sumption on printed circuit board during the firingphase. A particular attention has been given to the internalwire bonding. The "4-point" configuration ensuresreliable protection, eliminating the overvoltage in-troduced by the parasitic inductances of the wiring(Ldi/dt), especially for very fast transients.

Parametrics

LCP1114FBD48 absolute maximum ratings: (1)Maximum gate current (half sine wave tp = 10ms): 2A; (2)Maximum voltage LINE / GROUND: -100V; (3)Maximum voltage GATE / LINE: -80V; (4)Storage temperature range: -55 to + 150℃; (5)Maximum junction temperature: 150℃; (6)Maximum lead temperature for soldering during 10s: 260℃.

Features

LCP1114FBD48 features: (1)Dual programmable transient sup-pressor; (2)Wide negative firing voltage range: VMGL = -80V max.; (3)Low dynamic switching voltages: VFP and VDGL; (4)Low gate triggering current: IGT = 5mA max.; (5)Peak pulse current: IPP = 30A for 10/1000μs surge; (6)Holding current: IH = 150mA.

Diagrams

LCP1114FBD48 block diagram