LTC2857HDD-1#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2857HDD-1#TRPBF is a low-power, full-duplex RS485/RS422 transceiver operating on a single 5V supply. It supports maximum data rates of 20Mbps or 250kbps for low EMI applications. The receiver features a one-eighth unit load, supporting up to 256 nodes per bus (C and I grades). Enhanced ESD protection withstands ±15kV HBM without latchup. Key electrical parameters include a supply voltage range of 4.5V to 5.5V, maximum shutdown current of 5µA (C/I grade), and receive mode current of 900µA maximum. The device operates within temperature ranges of 0°C to 70°C (C-grade), -40°C to 85°C (I-grade), and -40°C to 125°C (H-grade).

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication with independent driver and receiver channels.
• High input impedance receiver supporting up to 256 nodes on the bus.
• Robust protection against electrostatic discharge up to ±15kV HBM.
• Integrated thermal shutdown and current limiting for fault protection.

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 transceivers
• Level translators
• Backplane transceivers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific temperature grade suffix required for your application environment. Confirm that the DFN-8 package matches your PCB footprint constraints. Ensure the datasheet revision aligns with your design specifications before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex operation is required alongside high node count capabilities. Consider the C, I, or H grade based on the ambient operating temperature range. Verify that the 5V supply voltage is compatible with the system power architecture.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of low-power RS485/RS422 transceivers. It shares core functionality with half-duplex variants like the LTC2856 but provides simultaneous transmit and receive paths. The family emphasizes robustness in noisy industrial environments through enhanced ESD ratings and failsafe receiver logic.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2857HDD-1#PBF