LTC2858CDD-2#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2858CDD-2#TRPBF is a low power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It features a maximum data rate of 250kbps with slew rate limiting for low EMI applications. The receiver input resistance exceeds 96kΩ, representing a one-eighth unit load to support up to 256 nodes per bus. Enhanced ESD protection withstands ±15kV (HBM) without latchup. The device includes current-limited drivers and thermal shutdown for fault protection. It operates within a commercial temperature range of 0°C to 70°C and is housed in a 10-lead 3mm × 3mm DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex architecture with independent driver and receiver channels
• Slew rate limited output for reduced electromagnetic interference emissions
• High input impedance receiver supporting extensive bus node counts
• Integrated thermal shutdown and current limiting for robust operation

Drivers, Receivers, Transceivers Applications

• Low EMI industrial communication networks
• Backplane transceiver systems
• Level translation interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging rather than tube. Confirm the C-grade designation matches the required 0°C to 70°C operating temperature range for the target application environment. Ensure compatibility with the 10-lead DFN footprint during procurement planning.

Drivers, Receivers, Transceivers Selection Notes

Select this model over the -1 variant when low EMI performance is prioritized over high-speed data rates. Verify that the 250kbps maximum data rate meets system timing requirements. Consider the H-grade version if operation beyond 70°C is necessary. Ensure the full-duplex configuration aligns with the bidirectional communication needs of the design.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low power RS485/RS422 transceivers. It shares core protection features like ±15kV ESD immunity and failsafe logic with siblings such as the LTC2856 and LTC2857. The primary distinction lies in its full-duplex topology and slew-rate limited speed profile compared to the high-speed half-duplex or full-duplex alternatives.

Drivers, Receivers, Transceivers Replacement Considerations

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