LTC2871IFE#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2871IFE#TRPBF is a multiprotocol transceiver supporting RS232, RS485, and RS422 protocols. It operates on a single 3V to 5.5V supply with a 1.7V to 5.5V logic interface. The device integrates two independent RS232 transceivers and one RS485 transceiver on dedicated I/O lines. It supports up to 20Mbps for RS485 and 500kbps for RS232. Integrated termination resistors include 120Ω for RS485 and 5kΩ for RS232. An internal DC/DC boost converter generates required supplies using a 10µH inductor and capacitors. The component is housed in a 38-lead 5mm × 7mm QFN package.

Drivers, Receivers, Transceivers Feature Summary

• Pin-configurable multiprotocol support for RS232, RS485, and RS422
• Integrated DC/DC boost converter eliminates external high-voltage supplies
• Software-selectable automatic termination resistor switching
• High ESD protection ratings on interface pins

Drivers, Receivers, Transceivers Applications

• Point-of-Sale Terminals
• Cable Repeaters
• Protocol Translators

Drivers, Receivers, Transceivers Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging. Confirm the I-grade designation corresponds to the –40°C to 85°C operating temperature range. Ensure the 38-lead QFN footprint matches the PCB layout requirements before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this model over the LTC2870 when independent control of two RS232 channels and one RS485 channel on dedicated lines is required. Verify that the 38-pin QFN package fits the design constraints. Check if the specific I-grade temperature range meets the environmental requirements.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2870/LTC2871 family of robust pin-configurable multiprotocol transceivers. The LTC2871 variant specifically provides independent control for two RS232 transceivers and one RS485 transceiver. It shares core features like integrated termination and boost converters with the LTC2870 but differs in pin count and channel isolation.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2871IUHF#TRPBF offers the same electrical specifications in a 38-lead QFN package instead of TSSOP.