LTC2877HDD#PBF

Drivers, Receivers, Transceivers Overview

The LTC2877HDD#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

• Integrated separate logic supply pin for low-voltage microcontroller interfacing
• Exceptional robustness against overvoltage faults and electrostatic discharge
• High input resistance enabling support for extensive network node counts
• Balanced differential receiver thresholds with integrated hysteresis

Drivers, Receivers, Transceivers Applications

• PROFIBUS-DP master and slave nodes
• Industrial communication networks requiring high noise immunity
• RS485 and RS422 systems operating in harsh environments
• Low voltage differential signaling applications

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix indicates the H-grade temperature range and PBF lead-free finish. Confirm the DD package designation matches the required 10-lead DFN footprint. Ensure the logic supply requirements align with the target system's digital voltage levels before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this model over the LTC2876 when independent control of the logic supply voltage is necessary for interfacing with varying microcontroller I/O levels. Verify that the application requires the specific 10-lead DFN form factor. Ensure the design accounts for the exposed pad connection to ground for proper thermal management.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2876/LTC2877 family of rugged transceivers designed for industrial fieldbus standards. The LTC2877 variant specifically adds a dedicated logic supply pin compared to the standard LTC2876, providing greater flexibility for mixed-voltage system designs while maintaining identical bus interface characteristics.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2876HDD#PBF serves as a direct functional substitute if the separate logic supply pin is not utilized in the design. Both components share identical bus interface specifications and package dimensions.