LTC4307CDD#TRPBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4307CDD#TRPBF is a low offset, hot swappable 2-wire bus buffer manufactured by Analog Devices Inc. It supports I²C and SMBus interfaces with a maximum operating frequency of 600 kHz. The device operates on a supply voltage (VCC) ranging from 2.3 V to 5.5 V, drawing a typical supply current of 8 mA. Key electrical parameters include a propagation delay of 70 ns for high-to-low transitions and a bus stuck low timeout of 30 ms. It features ±5 kV human body model ESD protection and isolates input SDA/SCL lines from outputs. The component is housed in an 8-lead, 3 mm × 3 mm DFN package.

Signal Buffers, Repeaters, Splitters Feature Summary

• Provides bidirectional buffering to isolate backplane and card capacitances during live board insertion.
• Includes automatic stuck bus recovery that generates clock pulses if the bus remains low for 30 ms.
• Features 1 V precharge circuitry on SDA and SCL lines to minimize disturbances during connection.
• Offers rise time accelerators to improve system reliability and noise immunity on rising edges.

Signal Buffers, Repeaters, Splitters Applications

• Servers
• RAID Systems
• ATCA
• Capacitance Buffer/Bus Extender

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm the C grade designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the DFN package dimensions match your PCB footprint requirements. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability.

Signal Buffers, Repeaters, Splitters Selection Notes

Select the LTC4307CDD#TRPBF for applications requiring hot swap capabilities on I²C or SMBus lines. This part is suitable for systems needing isolation between backplane and peripheral card capacitances. Consider the 30 ms timeout feature for environments prone to bus lockups. Ensure the operating voltage stays within the 2.3 V to 5.5 V range for proper functionality.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4307 family of 2-wire bus buffers. It is designed to prevent data corruption during live insertion into backplanes. The device complements other interface ICs by providing robust signal integrity and bus recovery mechanisms essential for reliable communication in server and storage architectures.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.