LTC2858HDD-2#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2858HDD-2#TRPBF is a low-power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It features a maximum data rate of 0.25Mbps with slew-rate limiting for low EMI emissions. The device includes one driver and one receiver in a 10-lead 3mm x 3mm DFN package. Key electrical parameters include a supply voltage range of 4.5V to 5.5V, a maximum receive mode current of 900µA, and a shutdown current of 15µA (H-Grade). It supports up to 256 nodes due to high input impedance and offers ±15kV HBM ESD protection.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate limited driver outputs reduce high-frequency EMI emissions
• Guaranteed failsafe receiver operation ensures logic-high output during floating or shorted inputs
• High input impedance allows connection of up to 256 nodes per bus
• Thermal shutdown and current limiting protect against excessive power dissipation

Drivers, Receivers, Transceivers Applications

• Low EMI industrial communication networks
• Backplane transceivers requiring controlled signal edges
• Level translation between different voltage domains
• Multi-drop RS485/RS422 bus systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific temperature grade and package suffix when ordering. The #TRPBF suffix indicates tape and reel packaging. Confirm that the H-grade temperature range meets your environmental requirements. Ensure the 5V supply rail is stable within the specified limits to maintain signal integrity.

Drivers, Receivers, Transceivers Selection Notes

Select this model for applications prioritizing EMI reduction over high-speed data transfer. The 0.25Mbps rate is suitable for most industrial control loops. Compare with the LTC2858-1 if higher speeds are needed. Ensure the PCB layout accommodates the DFN package thermal pad requirements for optimal heat dissipation.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low-power transceivers. It shares features with the LTC2856 and LTC2857 series but is distinct as a full-duplex device with enable pins. The -2 suffix denotes the slew-rate limited variant, while the -1 variant offers 20Mbps speed. All variants share similar pinouts and protection features.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2858HDD-2#PBF is the tube-packaged equivalent. LTC2858CDD-2#TRPBF and LTC2858IDD-2#TRPBF offer different temperature grades. For non-slew-limited performance, consider the LTC2858-1 series.