LTC2857IDD-2#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2857IDD-2#TRPBF is a low-power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It supports a maximum data rate of 250kbps with slew-rate limiting for low EMI applications. The device features enhanced ESD protection capable of withstanding ±15kV (HBM) without latchup or damage. It incorporates a one-eighth unit load receiver input resistance exceeding 96kΩ, supporting up to 256 nodes per bus. The component includes current-limited drivers and thermal shutdown protection to prevent excessive power dissipation during bus contention. It operates within the commercial temperature range of 0°C to 70°C and is housed in an 8-lead DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation with independent driver and receiver channels
• Slew-rate limited output for reduced electromagnetic interference emissions
• High input impedance receiver supporting extensive node counts
• Integrated thermal shutdown and current limiting for fault protection

Drivers, Receivers, Transceivers Applications

• Low EMI industrial communication networks
• Multi-drop RS485 bus systems requiring high node density
• Backplane transceiver interfaces
• Level translation between different voltage domains

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging configuration. Confirm the IDD designation corresponds to the 8-lead DFN package type and commercial temperature grade. Ensure compatibility with standard RS485/RS422 interface requirements before procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this part for applications requiring full-duplex communication with strict EMI constraints due to its slew-rate limiting feature. The one-eighth unit load allows for higher node density compared to standard receivers. Verify that the 5V supply voltage aligns with system power rails and that the commercial temperature range meets environmental specifications.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low-power RS485/RS422 transceivers. It shares core architectural features with half-duplex variants like the LTC2856 but provides simultaneous transmit and receive capabilities. The family emphasizes robustness through high ESD tolerance and comprehensive protection mechanisms against short circuits and thermal overload.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2857CDD-2#PBF: Same functional specification in tube packaging. LTC2857MS8-2#PBF: Same functional specification in MSOP-8 packaging.