STLC3080TR

Telecom Overview

The STLC3080TR is a subscriber line interface circuit (SLIC) in a 44-pin LQFP package. It operates within a temperature range of -40°C to +85°C and requires a positive supply voltage between 4.75V and 5.25V, with a control interface supply of 3V to 5.25V. The device implements BORSHT functions for public, transmission, and private applications. Key electrical parameters include a maximum limiting current of 50mA, a typical thermal resistance of 60°C/W, and power dissipation limits of 1.1W at 70°C ambient and 0.9W at 85°C ambient.

Telecom Feature Summary

• Implements complete BORSHT functionality for subscriber lines
• Supports dual control modes: slave mode or automatic activation
• Features soft battery reversal with programmable transition time
• Includes integrated ring trip detection with automatic disconnection

Telecom Applications

• Public telephone exchange (CO) interfaces
• Transmission line circuits (DLC)
• Private branch exchange (PABX) systems

Telecom Procurement Notes

Verify the component designation against official manufacturer documentation to confirm the specific suffix indicates tape and reel packaging. Ensure compatibility with the required operating temperature range and supply voltage specifications before integration into the design.

Telecom Selection Notes

Select this component for applications requiring a monolithic SLIC solution with low power dissipation. Consider the external transistor requirements for power handling and verify that the available pin count fits the board layout constraints of the target application.

Telecom Part Context

This part belongs to the STLC3080 family of subscriber line interface circuits manufactured by STMicroelectronics. It is designed as a single-chip solution for telecommunication interfaces, providing essential line driving and supervision capabilities in a surface-mount package suitable for automated assembly processes.

Telecom Replacement Considerations

Check for direct pin-compatible alternatives from the same manufacturer family. Verify that any substitute maintains the same BORSHT feature set, control interface logic, and thermal performance characteristics required by the original design.