Battrax® Dual Port Negative SLIC Protector

   This Battrax device is an integrated overvoltage protection solution for SLIC-based (Subscriber Line Interface Circuit) line cards. This six-pin device is constructed using four SCRs and four gate diodes.

   The device is referenced to VBAT and conducts when a voltage that is more negative than -VREF is applied to the cathode (Pins 1, 3, 4, or 6) of the SCR. During conduction, all negative transients are shorted to Ground. All positive transients are passed to Ground by the diodes.

   For specific diagrams showing these Battrax applications, see Figure 6.48 in Section 6, “Reference Designs” of this Telecom Design Guide.