The LTC4302CMS-1 is a robust hot-swappable 2-wire bus buffer that enhances the capabilities of I²C systems by allowing a card to be inserted into a live backplane without disturbing the data and clock lines. Manufactured by Linear Technology, now part of Analog Devices, this device is designed for a range of applications including servers, networking, telecommunications, and other systems that utilize hot-swappable components.

Key Features

• Hot Swap Capability: Enables safe insertion and removal of cards without turning off the system, preventing glitches and data corruption on the I²C bus.
• Capacitance Buffering: Supports large capacitive loads by isolating the bus capacitance of the card from the backplane, allowing more devices on the bus.
• Level Shifting: Operates with supply voltages from 2.5V to 5.5V, providing level shifting between different logic levels on the I²C bus.
• Stuck Bus Recovery: Features a stuck bus disconnect and recovery feature that disconnects the input from the output when the bus is stuck low for more than 30ms.
• Flow-Through Design: Minimizes the PCB layout problems by allowing easy routing of the I²C bus lines to the device.

Applications

• Hot-swappable cards
• Servers and data storage systems
• Telecommunications equipment
• Networking hardware

Technical Specifications

• Package: 10-lead MSOP
• Operating Temperature Range: –40°C to +85°C
• Supply Voltage: 2.5V to 5.5V

The LTC4302CMS-1 is an essential component for systems requiring high reliability and continuous operation. Its ability to seamlessly integrate into existing I²C architectures makes it a versatile solution for a wide variety of hot-swappable applications. With its advanced features, such as level shifting and stuck bus recovery, the LTC4302CMS-1 ensures stable and reliable operation in dynamic and demanding environments.