TCA4311DGKR

Overview

The TCA4311DGKR is a single-channel I2C hot-swap controller manufactured by Texas Instruments. It operates within a supply voltage range of 2.7V to 5.5V and draws a typical supply current of 5.1mA. The device supports input and output connections via a two-wire bus interface, specifically designed for I2C applications. It is housed in an 8-VSSOP package with dimensions of 0.118 inches (3.00mm) width. The component functions as a buffer and accelerator for bus signals. It is rated for operation across a temperature range of -40°C to 85°C and complies with RoHS3 standards.

Feature Summary

• Provides hot-swap protection capabilities for I2C bus systems
• Functions as a signal buffer and accelerator for two-wire bus interfaces
• Supports surface mount installation in compact 8-VSSOP packages

Applications

• I2C hot-swap protection circuits
• Bus buffering and signal acceleration
• Two-wire bus interface systems

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the required operating temperature range and supply voltage parameters for the target application design.

Selection Notes

Select this component when designing I2C bus systems requiring hot-swap functionality and signal buffering. Confirm that the 8-VSSOP package fits the PCB layout constraints and that the 2.7V to 5.5V supply range matches the system power rails.

Part Context

This part belongs to the TCA4311 family of I2C hot-swap controllers from Texas Instruments. It is distinct from other TI products like the TMP431 temperature sensor or LM431 voltage reference, serving specifically as an interface buffer and protector for serial communication buses rather than sensing or regulation tasks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.