LTC2852HDD#PBF

Drivers, Receivers, Transceivers Overview

The LTC2852HDD#PBF is a low-power, full-duplex RS-485/RS-422 transceiver operating on a 3.3V supply with a maximum data rate of 20Mbps. It features one driver and one receiver in an 8-Lead (3mm × 3mm) Plastic DFN package. The device supports up to 256 nodes per bus due to its high input impedance (one-eighth unit load). Key electrical parameters include a typical receive mode current of 370µA, a shutdown current of 5µA maximum, and operation over a temperature range of -40°C to +125°C for the H-grade variant.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication capability with independent transmit and receive channels
• High input impedance supporting up to 256 nodes on a single bus
• Integrated thermal shutdown and current-limited drivers for fault protection
• Glitch-free power-up/down driver outputs to prevent bus interference

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 transceivers
• Level translator applications
• Backplane transceiver systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'HDD' corresponds to the H-grade temperature rating (-40°C to 125°C) and the DD package type (8-Lead Plastic DFN). Confirm that the '#PBF' designation indicates lead-free compliance as specified in the ordering information section of the datasheet.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex operation is required alongside low power consumption. The H-grade variant is suitable for automotive or industrial environments requiring extended temperature ranges. Ensure the design accommodates the 3mm x 3mm DFN footprint and exposed pad soldering requirements.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of 3.3V RS-485/RS-422 transceivers. Unlike the half-duplex LTC2850, the LTC2852 provides simultaneous two-way communication. It shares common features such as failsafe receivers and ESD protection with the series but differs in duplex mode and pin configuration.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2851HDD#PBF: Full-duplex alternative without enable pins. LTC2850HDD#PBF: Half-duplex alternative with enables.