LTC2852HDD#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2852HDD#TRPBF is a full-duplex RS-485/RS-422 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 per bus and guaranteed failsafe operation over the entire common mode range. The device includes current-limited drivers, thermal shutdown protection, and enhanced ESD protection rated at ±15kV HBM. Typical supply currents are 370µA in receive mode and 450µA in transmit mode. It is housed in an 8-Lead (3mm × 3mm) Plastic DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex architecture with independent driver and receiver channels
• High input impedance receiver supports up to 256 nodes on the bus
• Guaranteed logic-high output state under floating or shorted input conditions
• Driver outputs maintain high impedance when disabled or supply is removed

Drivers, Receivers, Transceivers Applications

• Low power RS-485/RS-422 transceiver networks
• Level translator applications
• Backplane transceiver systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific temperature grade and package variant against project requirements before ordering. Confirm that the DD package designation corresponds to the 10-lead DFN configuration as indicated in the selection guide. Ensure compatibility with existing PCB footprints for the 3mm x 3mm plastic DFN form factor.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring full-duplex communication with low static power consumption. The high input resistance allows for extensive multinode networks without excessive loading. Consider the thermal performance and exposed pad soldering requirements inherent to the DFN package style during layout.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of low-power interface ICs. It complements the half-duplex LTC2850 and the enable-less full-duplex LTC2851. The family shares similar electrical characteristics but varies in duplex capability and control pin configurations to suit different system integration needs.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2852CS#PBF

Drivers, Receivers, Transceivers FAQ

What is the receiver input resistance?

The receiver input resistance is greater than 96kΩ for C- and I-grade parts, representing a one-eighth unit load.

How does the device handle input faults?

It features a failsafe mechanism that guarantees a high output state when inputs are floating, shorted, or terminated but not driven.

What is the ESD protection rating?

The device withstands up to ±15kV human body model (HBM) on the transceiver interface pins without latchup or damage.