LTC2877IDD#PBF

Drivers, Receivers, Transceivers Overview

The LTC2877IDD#PBF is a rugged PROFIBUS and RS485 transceiver in a 10-lead DFN package. It features a ±60V fault-tolerant bus interface with ±52kV ESD protection on line pins. The device supports data rates up to 20Mbps and operates with a primary supply (VCC) of 3.0V to 5.5V. A distinct logic supply pin (VL) allows flexible digital interfacing from 1.65V to VCC. It includes full failsafe receiver operation, balanced thresholds with 240mV hysteresis, and thermal shutdown protection.

Drivers, Receivers, Transceivers Feature Summary

• Independent logic supply pin for low-voltage microcontroller interfacing
• Exceptional robustness with ±60V bus fault tolerance and high ESD ratings
• Balanced differential receiver thresholds providing superior noise immunity
• High input resistance enabling support for up to 200 nodes per network

Drivers, Receivers, Transceivers Applications

• PROFIBUS-DP master and slave stations
• Industrial communication networks requiring high node counts
• RS485 and RS422 systems in harsh electrical environments
• Low voltage differential signaling applications

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and tube packaging. Confirm the IDD suffix corresponds to the industrial temperature range of –40°C to +85°C. Ensure the 10-lead DFN package matches the target PCB footprint. Cross-reference the manufacturer's latest ordering guide for availability status.

Drivers, Receivers, Transceivers Selection Notes

Select the LTC2877 over the LTC2876 when an independent logic supply voltage is required to interface with 1.65V or 3.3V logic while maintaining a 5V bus supply. This separation isolates the digital interface power domain from the transceiver supply. Verify that the application requires the 10-lead package configuration for the additional VL pin.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2876/LTC2877 family of rugged transceivers designed for PROFIBUS compliance. The LTC2877 variant specifically adds a dedicated logic supply pin compared to the LTC2876. Both devices share identical bus interface characteristics, including fault protection and data rate capabilities, within the same product series.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2876IDD#PBF serves as a direct functional substitute if the independent logic supply pin is not utilized and can be tied to VCC.