PBL38621/2QNT

Telecom Overview

The PBL38621/2QNT is a Subscriber Line Interface Circuit (SLIC) from Infineon Technologies, designed for telecommunications applications. It operates within a supply voltage range of 4.75V to 5.25V and draws a typical supply current of 4mA. The device supports a single circuit with a two-wire interface. It functions reliably across an operating temperature range of -40°C to 85°C. The component is housed in a 28-LCC (J-lead) surface-mount package, also referred to as PLCC-28, with a maximum seated height of 4.57 mm. It dissipates approximately 1.5 W of power.

Telecom Feature Summary

• Integrates subscriber line interface circuit functionality for telecommunication systems
• Supports two-wire interface configuration for single circuit operation
• Designed for surface-mount assembly in compact electronic layouts

Telecom Applications

• Telecommunications subscriber line interfaces
• PSTN network equipment
• Voice communication systems

Telecom Procurement Notes

Verify the obsolete product status before procurement planning. Confirm that the 28-LCC package matches the target PCB footprint. Ensure the 4.75V to 5.25V supply voltage aligns with system design requirements. Check RoHS compliance status if environmental regulations apply. Validate the operating temperature range against environmental conditions.

Telecom Selection Notes

Select this component for legacy or specific telecom designs requiring a dedicated SLIC. The 28-pin LCC package suits space-constrained surface-mount applications. Consider the 4mA supply current for power budget calculations. The wide temperature range supports industrial environments. Verify compatibility with existing two-wire interface protocols.

Telecom Part Context

This part belongs to the FlexiSLIC family by Infineon Technologies, targeting subscriber line interface solutions. It serves as a specialized integrated circuit for connecting analog telephone lines to digital switching systems. The PLCC-28 package provides a robust mounting option for industrial telecom hardware. Its function focuses on signal conditioning and interface management for voice channels.

Telecom Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require functional equivalents from other manufacturers. Evaluate alternative SLIC components with compatible pinouts and electrical specifications.