LTC4313IDD-1#TRPBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4313IDD-1#TRPBF is a hot swappable 2-wire bus buffer manufactured by Analog Devices Inc. It provides bidirectional buffering for I2C signals with a high noise margin up to 0.3 times VCC, ensuring interoperability with non-compliant devices driving high VOL levels. The device supports level translation between 3.3V and 5V busses and operates within a supply voltage range of 2.9V to 5.5V. It features rise time accelerators configured as slew-limited switches to meet rise time specifications in heavily loaded systems. The component includes stuck bus disconnect and recovery logic, generating up to sixteen clock pulses to free stuck buses. It is housed in an 8-lead (3mm × 3mm) DFN package.

Signal Buffers, Repeaters, Splitters Feature Summary

• Bidirectional buffering with high noise margin for reliable communication
• Hot swap capability with precharge circuitry to minimize bus disturbances during insertion
• Automatic stuck bus detection and recovery mechanism
• Rise time accelerators to reduce bus rise times in heavily loaded systems

Signal Buffers, Repeaters, Splitters Applications

• Capacitance buffering and bus extension for I2C networks
• Live board insertion into backplanes such as ATCA systems
• Level translation between 3.3V and 5V busses
• Telecommunications systems requiring robust I2C connectivity

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm the temperature grade 'I' corresponds to the industrial range of -40°C to 85°C. Ensure the specific part number matches the required functional variant, as other suffixes may denote different packages or temperature ranges. Cross-reference the manufacturer's official documentation for any updates on lead-free finishes or marking codes.

Signal Buffers, Repeaters, Splitters Selection Notes

Select the LTC4313-1 variant specifically for applications requiring strong rise time acceleration via slew-limited switching. This model is suitable for systems needing to drive large bus capacitances while maintaining fast signal edges. Consider the 8-lead DFN package dimensions for PCB layout constraints. Verify that the system voltage requirements align with the 2.9V to 5.5V operating range specified for this device.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4313 family of 2-wire bus buffers from Analog Devices. The family includes variants with different rise time accelerator configurations and voltage translation capabilities. The IDD-1 designation identifies the industrial temperature grade version packaged in a DFN format. Other family members include the CDD series for commercial temperatures and CMS8/IMS8 series for MSOP packages.

Signal Buffers, Repeaters, Splitters Replacement Considerations

LTC4313IDD-1#PBF is the tube-packaged equivalent of this part.