LTC2865IMSE#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2865IMSE#TRPBF is a full-duplex RS485/RS422 transceiver in a 12-lead MSOP package. It operates on a 3V to 5.5V VCC supply and features a separate 1.65V to 5.5V logic interface supply (VL). The device supports selectable data rates of 20Mbps or low EMI 250kbps via the SLO pin. It provides ±60V fault protection on transmission lines, ±15kV ESD protection on interface pins, and an extended common mode range of ±25V. Operating temperature range is -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Features ±60V overvoltage fault protection on data lines during all operational modes
• Includes a dedicated VL pin for flexible digital interface voltage levels
• Provides selectable high-speed or low EMI slew-rate limited transmission modes
• Guarantees failsafe receiver operation with fully balanced differential thresholds

Drivers, Receivers, Transceivers Applications

• Supervisory Control and Data Acquisition (SCADA) systems
• Industrial control and instrumentation networks
• Automotive and transportation electronics
• Building automation, security systems, and HVAC controls

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging. Confirm the IMSE designation matches the required industrial temperature grade (-40°C to +85°C) and MSOP-12 package type. Ensure the VL pin requirement aligns with the system's logic voltage availability.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a full-duplex interface with independent logic voltage support is required. The separate VL pin allows compatibility with 1.65V logic families while maintaining standard VCC operation. Verify that the application requires the specific combination of ±60V line protection and selectable data rate modes.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC286x family of fault-protected transceivers. Unlike the LTC2862 through LTC2864, the LTC2865 uniquely includes a dedicated VL pin for logic supply decoupling. This design facilitates integration into mixed-voltage environments where the core supply differs from the logic input threshold requirements.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2865CMSE#TRPBF

Drivers, Receivers, Transceivers FAQ

How is the data rate selected?

The data rate is selected using the SLO pin. Driving SLO high enables the 20Mbps high-speed mode, while driving it low enables the 250kbps low EMI slew-limited mode.

What is the function of the VL pin?

The VL pin provides a separate power supply for the logic inputs and outputs. It allows the logic interface to operate at voltages between 1.65V and 5.5V, independent of the main VCC supply.

Does the device support half-duplex operation?

No, the LTC2865 is a full-duplex transceiver with separate driver and receiver channels. Half-duplex variants within this family are designated as LTC2862.