LTC2877IDD#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2877IDD#TRPBF is a rugged PROFIBUS and RS485 transceiver designed for harsh industrial environments. It features ±60V fault tolerance on bus pins and ±52kV ESD protection on interface pins. The device supports data rates up to 20Mbps and operates with a primary supply voltage (VCC) of 4.5V to 5.5V, or down to 3V for low-power applications. A distinct feature is the separate logic supply pin (VL), allowing flexible digital interfacing from 1.65V to VCC. It includes full failsafe operation, balanced receiver thresholds with 240mV hysteresis, and is available in a 10-lead DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Separate logic supply pin (VL) enables flexible digital interfacing with voltages ranging from 1.65V to VCC
• Exceptional robustness with ±60V fault tolerance on bus pins and ±52kV ESD protection on interface pins
• Supports PROFIBUS-DP and RS485 specifications with maximum baud rates up to 20Mbps
• Full failsafe operation with balanced differential receiver thresholds and 240mV hysteresis for superior noise tolerance

Drivers, Receivers, Transceivers Applications

• PROFIBUS IEC 61158-2 Compliant Networks
• Industrial Communication Systems
• RS485 and RS422 Differential Signaling Applications
• 3V Low Voltage Differential Signaling Interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the component authenticity by checking the manufacturer's part marking code LGTP against official documentation. Confirm the specific temperature grade corresponds to the 'I' suffix for industrial range operation. Ensure the tape and reel packaging matches the TRPBF suffix requirements for automated assembly processes.

Drivers, Receivers, Transceivers Selection Notes

Select the LTC2877 over the LTC2876 when independent logic level translation is required between the microcontroller and the transceiver. The separate VL pin allows the logic side to operate at lower voltages while maintaining the higher VCC required for robust bus driving. This configuration is ideal for systems mixing 3.3V or 1.8V logic with standard 5V RS485 buses.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2876/LTC2877 family of rugged transceivers. The IDD suffix indicates an industrial temperature range (-40°C to 85°C) and a 10-lead DFN package. The TRPBF suffix denotes tape and reel packaging with lead-free finish. It serves as the 10-pin variant offering isolated logic supply capabilities compared to the 8-pin LTC2876.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2876IDD#TRPBF requires hardware modification due to the absence of the VL pin and different pinout.