LE88286DLC

Telecom Overview

The LE88286DLC is a dual-channel Automatic Battery Switching (ABS) VoicePort device manufactured by Microchip Technology. It implements a universal telephone line interface from the high voltage subscriber line to digital interfaces, providing complete BORSCHT functions for two channels in a single package. The device features an integrated high voltage switching regulator controller and supports pin-selectable PCM/MPI or GCI interfaces with G.711 µ-law, A-law, or 16-bit linear coding. It utilizes a small footprint exposed pad 80-pin eLQFP package.

Telecom Feature Summary

• Integrated power management with high voltage switching regulator controllers generating supplies for VBH, VBM, and VBL
• Supports worldwide programmability of input impedance, balance impedance, gain, DC feed voltage, and current limit
• Features up to 110-Vpk internal balanced ringing capability optimized for short and medium loop applications
• Includes powerful signal generator for universal Caller ID generation and up to 4 simultaneous tones

Telecom Applications

• Voice enabled Cable EMTAs
• DSL Gateways and Integrated Access Devices (IADs)
• Fiber to the Building/Home (FTTB/H) Optical Network Terminals (ONT)
• Wireless Local Loop (WLL) and PBX systems

Telecom Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the ordering suffix matches the required packaging format, as tape and reel options require a specific 'T' suffix addition to the part number. Ensure compliance with RoHS directives regarding the green package material used in manufacturing.

Telecom Selection Notes

Select this model over the LE88266 variant when higher ringing voltage is required for medium loop applications. The LE88286DLC specifically provides up to 110-Vpk internal balanced ringing compared to lower limits in other variants. Verify that the system design accommodates the 80-pin eLQFP package dimensions and thermal requirements.

Telecom Part Context

This component belongs to the VE880 Series Wideband VoicePort devices. It serves as a software-programmable line interface solution designed for broadband voice-over systems. The device integrates DSP codec functions and analog line driving capabilities to replace discrete telephony components in modern communication gateways.

Telecom Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.