Product Overview: NXP PCA9517ADP/DG

The PCA9517ADP/DG is a robust level-translating I²C-bus repeater from NXP Semiconductors designed to provide bidirectional voltage-level translation in I²C-bus and SMBus applications. This device allows for communication between devices operating at different voltage levels within the range of 0.8 V to 5.5 V, making it an essential component for systems that require a seamless interface between low voltage and standard voltage circuits.

Key Features

• Level Translation: The PCA9517ADP/DG offers a two-channel bidirectional buffer that enables voltage level translation between 0.8 V and 5.5 V, which is essential for mixed-voltage systems.
• Hot-Swappable: Its hot-swappable interface ensures that the I²C-bus can be live-inserted without corrupting the data flow on the bus, providing greater flexibility in maintenance and upgrades.
• Low Standby Current: The device is designed with power efficiency in mind, featuring a low standby current that helps in reducing the overall power consumption of the system.
• Enhanced Signal Integrity: The PCA9517ADP/DG includes an integrated rise-time accelerator on both channels to enhance signal integrity, ensuring reliable communication even over long cables or in the presence of high-capacitive loads.
• Package: This device is available in a small TSSOP8 package, which is suitable for space-constrained applications.

Applications

The PCA9517ADP/DG is ideal for a wide range of applications where I²C or SMBus signal buffering and level translation are required. It is commonly used in:

• Multi-voltage systems that interface with peripherals or microcontrollers operating at different logic levels.
• Systems that require a robust I²C-bus extender to drive long cables or to communicate with multiple devices.
• Industrial and automotive environments where a stable and reliable I²C-bus communication is critical.

With its ability to bridge the gap between varying voltage domains and its support for hot-swapping, the PCA9517ADP/DG is a versatile solution for ensuring seamless communication in mixed-voltage I²C-bus systems.