TCA4311DGKRG4

Overview

The TCA4311DGKRG4 is a single-channel I2C hot-swap buffer and repeater manufactured by Texas Instruments. It operates within a supply voltage range of 2.7V to 5.5V and supports input/output signals for two-wire bus interfaces. The device is designed for applications requiring I2C hot-swapping capabilities, featuring a buffer function with acceleration characteristics. It is housed in an 8-VSSOP package with a width of 3.00mm and is rated for operation across a temperature range of -40°C to 85°C.

Feature Summary

• Provides I2C hot-swap protection and signal buffering for bus integrity during insertion or removal events.
• Supports bidirectional data transfer on two-wire bus interfaces with acceleration features.
• Operates with a wide supply voltage range from 2.7V to 5.5V.

Applications

• I2C bus hot-swap scenarios
• Signal buffering for two-wire bus systems
• Acceleration of I2C signal transitions

Procurement Notes

Verify the exact part number suffix against official Texas Instruments documentation, as the 'DGKR' designation specifies the package type and tape-and-reel packaging configuration. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process before procurement.

Selection Notes

Select this component when designing circuits that require robust I2C hot-swap functionality and signal buffering. Ensure the operating voltage aligns with the 2.7V to 5.5V range and verify that the 8-VSSOP package fits the board layout constraints.

Part Context

This device belongs to the TCA4311 family of I2C buffers and repeaters. It is specifically engineered to handle hot-swap conditions on I2C buses, providing isolation and signal integrity improvements compared to standard passive components.

Replacement Considerations

Publicly documented direct substitutes include the LTC4313IMS8-1#PBF from Analog Devices. Verify pin compatibility and electrical specifications before substitution.