The PCA9517DP,118 is a robust I²C bus repeater chip designed by NXP Semiconductors, aimed at providing a reliable solution for extending the reach of the I²C communication bus. This integrated circuit (IC) is particularly useful in applications where the bus needs to communicate over longer distances or connect more devices than what is typically supported by standard I²C specifications.

Key Features

• Two-channel I²C-bus repeater: The PCA9517DP,118 features two bidirectional channels that allow for the connection of two I²C buses, effectively extending the communication range.
• Level shifting: The device is capable of level shifting between different voltages, which allows for the connection of devices that operate at different voltage levels, enhancing the flexibility of system design.
• 5.5V tolerant: Inputs are 5.5V tolerant, ensuring compatibility with a variety of logic levels and protecting against higher voltage levels that may occur.
• Hot swappable: The IC supports hot swapping, allowing devices to be added or removed from the I²C bus without needing to power down the system.
• Low standby current: Designed for energy-efficient applications, the PCA9517DP,118 has a low standby current, making it suitable for battery-powered devices.
• Enhanced performance: It improves the performance of the system by buffering both the data (SDA) and the clock (SCL) lines, which allows for driving longer bus capacitances and accommodating more I²C devices.

Applications

The PCA9517DP,118 is ideal for a wide range of applications, including but not limited to servers, telecommunication equipment, and industrial control systems. Its ability to connect multiple I²C devices over extended distances without signal degradation makes it a versatile component for complex electronic systems.

Package and Availability

This IC comes in a TSSOP-8 package, which is a space-saving option for PCB design. Its part number, PCA9517DP,118, signifies that it is available in a tube packing and can be ordered directly from NXP or authorized distributors.