LTC1649IS - Hot Swap Controller from Linear Technology

The LTC1649IS is a sophisticated hot swap controller designed by Linear Technology, intended to manage the safe insertion and removal of circuit boards into live backplanes or other powered systems. This integrated circuit (IC) provides a controlled power-up sequence for electronic systems, ensuring that the inrush current is limited to prevent damage to the connectors, backplane, and power supply components.

Key Features

• Soft-Start Capabilities: The LTC1649IS features programmable soft-start capabilities that limit the inrush current during power-up, which is crucial for preventing voltage drops on the supply line that could reset other system components.
• Electronic Circuit Breaker: To protect against overcurrent conditions, the LTC1649IS integrates an electronic circuit breaker function. This feature provides fast response to short-circuit conditions, ensuring the safety and reliability of the system.
• Adjustable Supply Voltage Range: The device supports a wide supply voltage range, offering flexibility for various applications and ensuring compatibility with different system voltages.
• Under-Voltage Lockout (UVLO): The LTC1649IS includes an under-voltage lockout feature that prevents the device from turning on if the supply voltage is too low, thus protecting the load and the controller itself.
• High-Side Drive: As a high-side drive controller, the LTC1649IS allows for the switch to be placed in the positive supply line, which is beneficial for systems where ground disturbances are a concern.
• Compact Packaging: The LTC1649IS comes in a compact surface-mount package, making it suitable for space-constrained applications.

Applications

The LTC1649IS is ideal for a range of applications that require hot swapping capabilities, including:

• RAID Systems
• Network Servers
• Telecommunication Equipment
• Industrial Systems

With its robust feature set, the LTC1649IS from Linear Technology provides engineers with a reliable solution for managing the power distribution in hot-swappable systems. Its ability to ensure a safe power-up sequence and protect against overcurrent conditions makes it an essential component for any system that requires hot insertion capabilities.