LTC4302CMS-1#TRPBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4302CMS-1#TRPBF is an addressable I²C bus and SMBus compatible buffer designed for live board insertion. It maintains electrical isolation between the backplane and peripheral card until VCC supply is valid and addressed. Operating from 2.7V to 5.5V, it features a 1V precharge on SDA/SCL lines to minimize disturbances during connection. The device supports up to 600 kHz frequency with a typical propagation delay of 60 ns. It includes rise time accelerators for heavy capacitive loading and provides two general-purpose I/O pins. Addressing is configured via a resistive divider on the ADDRESS pin, allowing 32 unique addresses.

Signal Buffers, Repeaters, Splitters Feature Summary

• Bidirectional buffering for SDA and SCL lines with live insertion capability
• Rise time accelerator circuitry for handling heavy capacitive bus loads
• Configurable general-purpose input/output pins with flexible drive modes
• Addressable interface allowing 32 unique device selections via external resistors

Signal Buffers, Repeaters, Splitters Applications

• Live board insertion into active backplanes without bus corruption
• Level translation between 5V and 3.3V systems
• Capacitance buffering and bus extension in server environments
• Nested addressing configurations for complex I/O architectures

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the CMS designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the ordering information matches the exact Analog Devices part number to avoid functional discrepancies related to package or temperature variants.

Signal Buffers, Repeaters, Splitters Selection Notes

Select the LTC4302-1 variant specifically as this component provides two configurable GPIO pins. Verify that the system requires addressable control rather than fixed hardwired connections. Consider the MSOP-10 package constraints for PCB layout. Ensure the application does not require dual supply voltage level shifting, which necessitates the LTC4302-2 version instead.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4302 family of addressable 2-wire bus buffers manufactured by Analog Devices. It is distinct from the LTC4302-2, which replaces one GPIO with a second supply pin for level shifting. The device integrates analog-to-digital conversion for address programming and UVLO protection within a compact 10-lead plastic MSOP package.

Signal Buffers, Repeaters, Splitters Replacement Considerations

LTC4302IMS-1#PBF serves as a direct replacement offering the industrial temperature range (-40°C to 85°C) in tube packaging. LTC4302CMS-1#PBF is available in tube format for the same commercial temperature range. Both alternatives maintain identical electrical characteristics and pinout compatibility.