LTC2852HS#PBF

Drivers, Receivers, Transceivers Overview

The LTC2852HS#PBF is a full-duplex RS485/RS422 transceiver operating on a 3V to 3.6V supply with a maximum data rate of 20Mbps. It features a one-eighth unit load receiver supporting up to 256 nodes and guaranteed failsafe operation over the entire common mode range of -7V to 12V. The device includes current-limited drivers, thermal shutdown protection, and enhanced ESD protection up to ±15kV HBM. Typical supply currents are 370µA in receive mode and 450µA in transmit mode. It operates within an automotive temperature range of -40°C to 125°C and is available in SO-14, MSOP-10, and DFN-10 packages.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex architecture with independent driver and receiver channels
• High input impedance receiver supports up to 256 nodes per bus
• Guaranteed failsafe logic-high output for floating or shorted inputs
• Robust protection against short circuits, thermal overload, and high-voltage ESD

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 communication networks
• Level translation between different voltage domains
• Backplane transceiver interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'HS' corresponds to the Automotive grade (-40°C to 125°C) and the '#PBF' indicates lead-free composition. Confirm the package type matches the required PCB footprint, as this part number specifies the 14-lead SOIC variant. Ensure the ordering information aligns with the manufacturer's current production status and RoHS compliance requirements.

Drivers, Receivers, Transceivers Selection Notes

Select the LTC2852HS#PBF when full-duplex communication is required alongside high node density capabilities. The H-grade designation ensures reliable performance in elevated temperature environments up to 125°C. Consider the low quiescent current for battery-operated systems and the integrated failsafe feature to simplify external pull-up resistor requirements.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low-power transceivers designed for 3.3V operation. While the LTC2850 offers half-duplex functionality and the LTC2851 provides full-duplex without enables, the LTC2852 adds dedicated driver enable (DE) and receiver enable (RE) control pins. This configuration allows for precise management of transceiver states and reduced power consumption during idle periods.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include LTC2852IS#PBF for industrial temperature ranges and LTC2852CS#PBF for commercial temperature ranges. Other compatible devices within the same family include the LTC2850 and LTC2851, though they differ in duplex capability and enable pin configurations.