LTC2865CDE#PBF

Drivers, Receivers, Transceivers Overview

The LTC2865CDE#PBF is a low-power, full-duplex RS485/RS422 transceiver operating on a 3V to 5.5V supply. It features ±60V overvoltage fault protection on data lines during all modes, including power-down. The device supports selectable data rates of 20Mbps or 250kbps via the SLO pin. It includes an independent 1.65V to 5.5V logic supply (VL) for flexible digital interface compatibility. Enhanced ESD protection provides ±15kV HBM tolerance on interface pins and ±8kV on other pins. The receiver offers an extended common mode range of ±25V with guaranteed failsafe operation.

Drivers, Receivers, Transceivers Feature Summary

• Provides ±60V fault protection on transmission lines across all operational states
• Features a dedicated VL pin allowing 1.65V to 5.5V logic interface flexibility
• Supports selectable high-speed (20Mbps) or low-EMI (250kbps) data rates
• Includes robust ±15kV ESD protection on interface pins without latchup

Drivers, Receivers, Transceivers Applications

• Supervisory Control and Data Acquisition (SCADA)
• Industrial control and instrumentation networks
• Automotive and transportation electronics
• Building automation, security systems, and HVAC
• Medical equipment and lighting/sound system control

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific temperature grade suffix against project requirements. The 'C' designation indicates commercial range (0°C to 70°C). Ensure the DE package variant matches the PCB footprint constraints. Confirm that the VL pin voltage levels align with the host microcontroller logic standards before finalizing the order.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required alongside high fault tolerance. The LTC2865 is distinct from the LTC2862-LTC2864 due to its separate VL pin, which enables lower voltage logic interfacing. Choose the C-grade for standard industrial environments where temperatures remain within the commercial range. Verify that the 12-lead DFN package fits the available board space.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC286x family of ruggedized transceivers designed for harsh electrical environments. It shares pinout compatibility with legacy parts like the LT1785 and LT1791 in certain configurations but adds superior fault protection. The DE package denotes a 12-lead plastic DFN form factor, distinguishing it from the MSOP or SOIC variants available in the same series.

Drivers, Receivers, Transceivers Replacement Considerations

The LTC2865CDE#PBF is pin-compatible with the LT1785 and LT1791. Direct replacements include other members of the LTC286x family, such as the LTC2864CDE#PBF, though the LTC2864 lacks the independent VL pin. Ensure any substitute maintains the ±60V fault protection rating if used in high-voltage ground loop scenarios.