The TCA9517DGKR is a robust level-shifting I²C bus repeater designed by Texas Instruments to facilitate communication between devices operating at different voltage levels. This integrated circuit (IC) is particularly useful in multi-voltage systems, where it ensures seamless data transfer without compromising signal integrity.

Key Features

• Bidirectional Voltage Translation: The TCA9517DGKR is capable of translating I²C bus signals between two different voltage domains, ranging from 0.9V to 5.5V, making it highly versatile for various applications.
• Enhanced Signal Integrity: It comes equipped with built-in hot-swap capabilities that prevent data corruption during live board insertion and removal in I²C-bus systems.
• High Impedance SDA and SCL Pins: When the TCA9517DGKR is unpowered, the SDA and SCL lines are kept at a high impedance state, ensuring no interference with the bus lines.
• Low Standby Current: The device features a low standby current, which makes it suitable for battery-powered and power-sensitive applications.
• Package Type: The IC is available in an industry-standard 8-pin VSSOP (DGK) package, providing a compact solution for space-constrained designs.

Applications

The TCA9517DGKR is ideal for a variety of applications where I²C bus signal level shifting is required. It is commonly used in:

• Consumer Electronics
• Telecommunications
• Computing Systems
• Industrial Controls
• Automotive Networks

Technical Specifications

For designers and engineers looking to integrate the TCA9517DGKR into their system, Texas Instruments provides comprehensive technical documentation, including datasheets, application notes, and design resources to support the product implementation process.