LTC2858HMS-1#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2858HMS-1#TRPBF is a low power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It supports a maximum data rate of 20Mbps and features a one-eighth unit load receiver input resistance exceeding 96kΩ, enabling up to 256 nodes per bus. The device includes enhanced ESD protection rated at ±15kV HBM, current-limited drivers with thermal shutdown, and a failsafe receiver guaranteeing a high output state during floating or shorted inputs. It operates within the automotive temperature range of -40°C to 125°C and is housed in a 10-lead MSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication capability with independent driver and receiver channels
• High input impedance supporting extensive network node density
• Robust protection against electrostatic discharge and bus faults

Drivers, Receivers, Transceivers Applications

• Low EMI industrial automation networks
• Backplane transceiver systems
• Level translation interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging for automated assembly processes. Confirm the H-grade designation matches the required -40°C to 125°C operating temperature range for your application environment. Ensure the 10-lead MSOP footprint aligns with your PCB layout constraints.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex operation is required alongside high node count capabilities. The H-grade variant is necessary for applications demanding extended temperature ranges beyond standard commercial limits. Verify that the 20Mbps data rate meets system timing requirements compared to slew-rate limited alternatives.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of low power RS485/RS422 transceivers. It shares architectural similarities with half-duplex variants like the LTC2856 but provides simultaneous transmit and receive paths. The device integrates advanced protection features common across the series while maintaining low static power consumption.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2858HMS-1#PBF (Tube Packaging)

Drivers, Receivers, Transceivers FAQ

What is the receiver input resistance?

The receiver input resistance is guaranteed to be greater than 96kΩ in receive mode or unpowered, representing a one-eighth unit load.

How does the device handle bus contention?

Excessive power dissipation from bus contention is prevented by current limiting all outputs and activating thermal shutdown if junction temperatures exceed 150°C.

What is the failsafe behavior?

The receiver guarantees a high output state under conditions of floating or shorted inputs over the entire common mode range of -7V to 12V.