The TCA9517DR is a robust I2C bus buffer integrated circuit from the renowned manufacturer Texas Instruments. This device is designed to enhance I2C bus signal integrity by extending its capabilities in terms of both length and number of devices that can be connected. The TCA9517DR is particularly useful in applications where bus capacitance limits the number of devices or the distance over which data can be transmitted.

Key Features

• Level Shifting: The TCA9517DR incorporates level shifting technology, allowing it to facilitate communication between devices operating at different voltages. This is essential for mixed-voltage systems, where it can bridge between a lower voltage (down to 0.9V) and a higher voltage (up to 5.5V) domain.
• High Noise Immunity: With built-in hysteresis, the TCA9517DR offers improved noise immunity, making it suitable for electrically noisy environments where signal integrity is a concern.
• Hot-Swap Capability: The device supports hot-swapping, allowing you to connect or disconnect devices from the I2C bus without the need to power down the system. This feature is essential for servers, telecom, and other systems requiring uninterrupted operation.
• Two-Channel Operation: The TCA9517DR functions as a two-channel buffer, effectively isolating capacitance and allowing for a more extensive and reliable I2C network.
• Low Standby Current: Power efficiency is a key aspect of the TCA9517DR, which has a low standby current, making it ideal for battery-powered and power-sensitive applications.

Applications

The TCA9517DR is versatile and can be used in a wide array of applications, including:

• Consumer Electronics
• Industrial and Automotive Systems
• Telecommunications Infrastructure
• Data Centers and Servers
• Medical Equipment

Package and Quality

The TCA9517DR comes in a small-outline package, specifically an 8-pin SOIC (D) package, which is suitable for space-constrained applications. Texas Instruments ensures high reliability and performance, making the TCA9517DR a trusted choice for engineers and designers looking for a high-quality I2C bus buffer solution.