ON Semiconductor PCA9517ADMR2G I²C Bus Repeater

The PCA9517ADMR2G is a robust I²C bus repeater designed by ON Semiconductor to provide bidirectional voltage-level translation with true open-drain output capability. This integrated circuit is especially useful in applications where there is a need to connect devices operating at different voltage levels on the same I²C bus, ensuring reliable communication and data integrity between components.

The PCA9517ADMR2G operates over a wide supply voltage range, from 2.3V to 5.5V, making it versatile for interfacing with a variety of I²C devices and systems. It is capable of providing level shifting between low voltage (down to 0.9V) and higher voltage (up to 5.5V) segments of the I²C bus, which is critical in mixed-voltage systems.

One of the key features of this I²C bus repeater is its 5-bit programmable addressing, allowing up to 32 devices on the same bus. This makes it an ideal choice for complex systems with multiple I²C devices that require individual addressing. The PCA9517ADMR2G also supports hot-swapping, which permits devices to be inserted or removed from the I²C bus without the need to power down the system, enhancing the flexibility and maintainability of the system.

The device comes in a compact 8-pin MSOP package, which is highly suitable for space-constrained applications. Its small footprint, combined with the no-lead (Pb-free) manufacturing, aligns with modern environmental standards and space-saving requirements.

ON Semiconductor's PCA9517ADMR2G is equipped with strong ESD protection, ensuring the device's resilience against electrostatic discharges, thus providing a reliable solution for sensitive electronic systems. It is particularly well-suited for applications in industrial control, consumer electronics, and portable devices where I²C communication must be maintained across different voltage domains without compromising signal integrity.

In summary, the PCA9517ADMR2G from ON Semiconductor is a versatile, high-performance I²C bus repeater that provides voltage-level translation and enhances the reliability of multi-voltage I²C systems. Its programmable addressing, hot-swap capability, and strong ESD protection make it a smart choice for designers looking to create scalable and robust I²C communication networks.